Relevant bibliographies by topics / Specialty optical fibers

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Specialty optical fibers'

Author: Grafiati
Published: 4 June 2021
Last updated: 16 April 2024

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Journal articles on the topic "Specialty optical fibers"

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Hu, Dora Juan Juan, Georges Humbert, Hui Dong, Hailiang Zhang, Jianzhong Hao, and Qizhen Sun. "Review of Specialty Fiber Based Brillouin Optical Time Domain Analysis Technology." Photonics 8, no. 10 (September 30, 2021): 421. http://dx.doi.org/10.3390/photonics8100421.

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Specialty fibers have introduced new functionalities and opportunities in distributed fiber sensing applications. Particularly, Brillouin optical time domain analysis (BOTDA) systems have leveraged the unique features of specialty fibers to achieve performance enhancement in various sensing applications. This paper provides an overview of recent developments of the specialty fibers based BOTDA technologies and their sensing applications. The specialty fibers based BOTDA systems are categorized and reviewed based on the new features or performance enhancements. The prospects of using specialty fibers for BOTDA systems are discussed.
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Liu, Zhengyong, Zhi Zhang, Hwa-Yaw Tam, and Xiaoming Tao. "Multifunctional Smart Optical Fibers: Materials, Fabrication, and Sensing Applications." Photonics 6, no. 2 (May 6, 2019): 48. http://dx.doi.org/10.3390/photonics6020048.

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This paper presents a review of the development of optical fibers made of multiple materials, particularly including silica glass, soft glass, polymers, hydrogels, biomaterials, Polydimethylsiloxane (PDMS), and Polyperfluoro-Butenylvinyleth (CYTOP). The properties of the materials are discussed according to their various applications. Typical fabrication techniques for specialty optical fibers based on these materials are introduced, which are mainly focused on extrusion, drilling, and stacking methods depending on the materials’ thermal properties. Microstructures render multiple functions of optical fibers and bring more flexibility in fiber design and device fabrication. In particular, micro-structured optical fibers made from different types of materials are reviewed. The sensing capability of optical fibers enables smart monitoring. Widely used techniques to develop fiber sensors, i.e., fiber Bragg grating and interferometry, are discussed in terms of sensing principles and fabrication methods. Lastly, sensing applications in oil/gas, optofluidics, and particularly healthcare monitoring using specialty optical fibers are demonstrated. In comparison with conventional silica-glass single-mode fiber, state-of-the-art specialty optical fibers provide promising prospects in sensing applications due to flexible choices in materials and microstructures.
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SHIMA, Kensuke, Tomoharu KITABAYASHI, Masahiro KASHIWAGI, Katsuhiro TAKENAGA, Michihiro NAKAI, and Kuniharu HIMENO. "Evolution of Fiber Lasers by Specialty Optical Fibers." Review of Laser Engineering 38, no. 11 (2010): 864–68. http://dx.doi.org/10.2184/lsj.38.864.

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Khisamov, Damir V., Anna N. Smirnova, and Irina S. Azanova. "Influence of the bend radius for PANDA PM Specialty optical fibers reliability." Вестник Пермского университета. Физика, no. 4 (2021): 52–57. http://dx.doi.org/10.17072/1994-3598-2021-4-52-57.

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The research considers the possibility of applying the forced «aging» method used for single-mode cable optical fibers in accordance with IEC 60793-2-50 to confirm the reliability of the PANDA PM Specialty optical fiber under long-term bending. A comparison of the results of PANDA PM Specialty optical fiber with isotropic optical fibers, which differ in the diameters of the quartz cladding and polymer coating, is carried out. An analytical estimate of the lifetime is carried out.
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Ballato, J., and A. F. Abouraddy. "Feature issue introduction: specialty optical fibers." Optical Materials Express 2, no. 11 (October 29, 2012): 1680. http://dx.doi.org/10.1364/ome.2.001680.

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Stolov, Andrei A., Debra A. Simoff, and Jie Li. "Thermal Stability of Specialty Optical Fibers." Journal of Lightwave Technology 26, no. 20 (October 2008): 3443–51. http://dx.doi.org/10.1109/jlt.2008.925698.

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Baker, J. D., H. P. Lentz, D. G. Kritikos, F. H. Schamber, and R. J. Lee. "Wool and Cashmere Fiber Identification Study Using Scanning Electron Microscopy." Microscopy and Microanalysis 4, S2 (July 1998): 264–65. http://dx.doi.org/10.1017/s1431927600021449.

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Despite the large production and consumption of textile fibers on a global basis, the ability to identify specific types of textile fibers with similar physical-chemical properties is a challenging obstacle for the textile industry. One problem in particular is the identification of specialty animal fibers. Cashmere is a specialty fiber that has a value of 7 to 8 times higher than its similar counterpart wool. It is important, therefore, for textile manufactures to be capable of distinguishing between bails of high value specialty fibers and those containing contamination from lower value products.Today the universally accepted method of identifying fibers is microscopic analysis. However, the optical microscope is limited because of the subjective nature of the analysis and its limited ability to easily measure different parameters of the fiber such as the fiber diameter, the fiber scale length and the fiber scale thickness.
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Dragic, Peter, and John Ballato. "A Brief Review of Specialty Optical Fibers for Brillouin-Scattering-Based Distributed Sensors." Applied Sciences 8, no. 10 (October 20, 2018): 1996. http://dx.doi.org/10.3390/app8101996.

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Specialty optical fibers employed in Brillouin-based distributed sensors are briefly reviewed. The optical and acoustic waveguide properties of silicate glass optical fiber first are examined with the goal of constructing a designer Brillouin gain spectrum. Next, materials and their effects on the relevant Brillouin scattering properties are discussed. Finally, optical fiber configurations are reviewed, with attention paid to fibers for discriminative or other enhanced sensing configurations. The goal of this brief review is to reinforce the importance of fiber design to distributed sensor systems, generally, and to inspire new thinking in the use of fibers for this sensing application.
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Ohishi, Yasutake, and Takenobu Suzuki. "Soft glass based specialty optical fibers and their applications - INVITED." EPJ Web of Conferences 287 (2023): 10001. http://dx.doi.org/10.1051/epjconf/202328710001.

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This paper describes a prospect for broadband mid-infrared (mid-IR) highly coherent supercontinuum generation. Tellurite and chalcogenide glass with high transparency up to the mid-IR range are used as fiber materials. We successfully develop all-solid hybrid microstructured optical fibers made of tellurite and chalcogenide glass to control chromatic dispersion and demonstrate that highly nonlinear soft glass microstructured optical fibers are promising media for broadband mid-IR highly coherent supercontinuum generation.
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Aleshkina, Svetlana, Regina Gumenyuk, and Serafima Filatova. "Special Issue “Specialty Optical Fibers, Fiber Lasers and Their Applications”." Photonics 9, no. 5 (April 19, 2022): 274. http://dx.doi.org/10.3390/photonics9050274.

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The unique properties of optical fibers enable the realization of the state-of-the-art fiber lasers, which surpass other laser sources in many characteristics and act themselves as an exceptional platform for harnessing emerging technologies [...]
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Dissertations / Theses on the topic "Specialty optical fibers"

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Osório, Jonas Henrique 1989. "Specialty optical fibers for sensing = Fibras ópticas especiais para sensoriamento." [s.n.], 2017. http://repositorio.unicamp.br/jspui/handle/REPOSIP/330348.

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Orientador: Cristiano Monteiro de Barros Cordeiro
Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin
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Resumo: Nesta tese, fibras ópticas especiais são estudadas para fins de sensoriamento. Primei-ramente, propomos a estrutura denominada fibra capilar com núcleo embutido (embedded-core capillary fibers) para realização de sensoriamento de pressão. Estudos numéricos e analíticos foram realizados e mostraram que altas sensibilidades a variações de pressão poderiam ser al-cançadas com esta estrutura simplificada, que consiste de um capilar dotado de um núcleo, dopado com germânio, em sua parede. Experimentos permitiram medir uma sensibilidade de (1.04 ± 0.01) nm/bar, que é um valor alto quando comparado a outros sensores de pressão ba-seados em fibras microestruturadas. Ademais, estudamos fibras do tipo surface-core, que são fibras cujos núcleos são colocados na superfície externa da fibra. Nesta abordagem, redes de Bragg foram utilizadas para obter sensores de índice de refração ¿ fazendo-se uso da interação entre o campo evanescente do modo guiado no núcleo e o ambiente externo à fibra ¿ e de cur-vatura ¿ ao se explorar o fato de que, nestas fibras, o núcleo se encontra fora do centro geomé-trico da mesma. As sensibilidades a variações de índice de refração e curvatura medidas, 40 nm/RIU em torno de 1.41 e 202 pm/m-1 comparam-se bem a outros sensores baseados em redes de Bragg. Outrossim, fibras capilares poliméricas foram investigadas como sensores de temperatura e pressão. Para a descrição do sensor de temperatura, usou-se um modelo analítico para simular o espectro de transmissão dos capilares e a sua dependência com as variações de temperatura. No que tange à aplicação de sensoriamento de pressão, variações nas espessuras dos capilares devido à ação da pressão foram calculadas e relacionadas à sensibilidade da me-dida de monitoramento. Nestas duas aplicações, realizações experimentais também são repor-tadas. Finalmente, oportunidades adicionais de sensoriamento ao se utilizar fibras ópticas es-peciais são apresentadas, a saber, um sensor de pressão para dois ambientes baseados em fibras de cristal fotônico, um sensor de três parâmetros baseado em redes de Bragg, fibras afinadas e interferência multimodal, um sensor de nível de líquido baseado em redes de Bragg e interfe-rência multimodal e um sensor de temperatura baseado em fibras embedded-core preenchidas com índio. Os resultados aqui reportados demonstram o potencial das fibras ópticas em forne-cerem plataformas de sensoriamento para alcançar medidas de diferentes tipos de parâmetros com alta sensibilidade e resolução adequada
Abstract: In this thesis, specialty optical fibers for sensing applications are investigating. Firstly, we propose the embedded-core capillary fiber structure for acting as a pressure sensor. Analyt-ical and numerical studies were performed and showed that high pressure sensitivity could be achieved with this simplified fiber structure, which consists of a capillary structure with a germanium-doped core placed within the capillary wall. Experiments allowed measuring a sensitivity of (1.04 ± 0.01) nm/bar, which is high when compared to other microstructured optical fiber-based pressure sensors. Moreover, we studied the so-called surface-core optical fibers, which are fibers whose cores are placed at the external boundary of the fiber. In this approach, Bragg gratings were used to obtain refractive index ¿ making use of the interaction between the guided mode evanescent field and the external medium ¿ and directional curva-ture sensors ¿ by exploring the off-center core position. The measured refractive index and the curvature sensitivities, respectively 40 nm/RIU around 1.41 and 202 pm/m-1, compares well to other fiber Bragg grating-based sensors. Additionally, antiresonant polymer capillary fibers were investigated as temperature and pressure sensors. For the temperature sensing descrip-tion, one used an analytical model to simulate the transmission spectra of such fibers and the dependence on temperature variations. Regarding the pressure sensing application, pressure-induced capillary wall thickness variations were analytically accounted and related to the sys-tem pressure sensitivity. In both these applications, experimental data were presented. Finally, additional opportunities using specialty optical fibers were presented, namely, a photonic-crystal fiber-based dual-environment pressure sensor, a three parameters sensor using Bragg gratings, tapered fibers and multimode interference, a liquid-level sensor based on Bragg grat-ings and multimode interference, and a temperature sensor based in an embedded-core fiber filled with indium. The results reported herein demonstrates the potential of optical fibers for providing sensing platforms to attain measurements of different sort of parameters with highly sensitivity and improved resolutions
Doutorado
Física
Doutor em Ciências
152993/2013-4
CNPQ
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Mohammed, Waleed. "SELECTIVE MODE EXCITATION IN SPECIALTY WAVEGUIDES USING MICRO OPTICAL." Doctoral diss., University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3449.

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Although optical fibers and specialty waveguides are the base of majority of today's telecom and light delivery applications, fabrication deformation, nonlinearity and attenuation limit the bandwidth of the data being transmitted or the amount of power carried by these systems. One-way to overcome these limitations without changing the fibers design or fabrication is to engineer the input light in order to excite a certain mode or a group of modes with unique optical properties. Diffractive and micro optics are highly effective for selectively coupling light to specific modes. Using micro optics, mode selective coupling can be achieved through several matching schemes: phase only, phase and amplitude, or phase, amplitude and polarization. The main scope of this work is the design and fabrication of novel optical elements that overcome the limitations of these light delivery systems, as well as the characterization and analysis of their performance both experimentally and using numerical simulation
Ph.D.
Other
Optics and Photonics
Optics
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Oliveira, Rafael Euzebio Pereira de. "Fabricação e caracterização de fibras ópticas contendo nanopartículas de ouro e conversão de frequências em microrressonadores em anel." Universidade Presbiteriana Mackenzie, 2014. http://tede.mackenzie.br/jspui/handle/tede/1525.

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Nonlinear effects are essential for the construction of photonic devices such as modulators, optical switches and frequency converters. Aiming at the development of devices for optical frequency conversion and the generation of nonclassical states of light in photonic chips, this thesis presents the design and simulation of a frequency converter based on second harmonic generation controlled by static electric field in a silicon nitride ring resonator. The developed simulation appraises conversion efficiencies up to -8.25 dB with the advantage to provide an electrical interface to control the conversion. Optical fiber based devices are also within the scope of the thesis and a new technique is presented for manufacturing optical fibers with enhanced nonlinear response by the presence of metallic gold nanoparticles. The manufactured fibers are based on silica that is doped with aluminum and gold in the core, offering full compatibility and integration with conventional optical fibers. The nanoparticles were created by annealing in an oven or by heating with a CO2 laser beam, which offers unprecedented control over particle size and density in optical fibers. Compared to previously reported fibers with gold nanoparticles, higher concentration of nanoparticles were obtained which was estimated by the plasmonic absorption peak exceeding 800 dB/m and by a consequent increasing in the nonlinear refractive index of at least 50x under continuous wave excitation, achieving values of n2=(6,75±0,55)×10-15 m²/W. The development of these fibers and the design of the on chip frequency converter provide platforms for the development of efficient and integrated devices in fiber based optical systems and in photonic chips.
Efeitos não lineares são essenciais para construção de dispositivos fotônicos como moduladores, chaves ópticas e conversores de frequências. Esta tese apresenta o projeto e a simulação de um conversor de frequências baseado na geração de segundo harmônico controlado por campo elétrico estático em um ressonador em anel de nitreto de silício, visando o desenvolvimento de dispositivos para conversão de frequências ópticas e geração de estados não clássicos da luz em chips fotônicos. A simulação desenvolvida prevê eficiência de conversão de até -8,25 dB com o diferencial de oferecer uma interface elétrica no controle de conversão. Dispositivos baseados em fibras ópticas também são visados nesta tese e uma nova técnica para fabricação de fibras ópticas com resposta não linear aumentada pela presença de nanopartículas metálicas de ouro é apresentada. As fibras fabricadas são baseadas em sílica com dopagem de alumínio e ouro no núcleo, possuindo total compatibilidade de integração com fibras ópticas convencionais. As nanopartículas foram sintetizadas através de tratamentos térmicos em forno ou aquecimento com feixe laser de CO2, obtendo-se um controle sem precedentes das dimensões e densidade de nanopartículas em fibras ópticas. Comparadas às fibras previamente reportadas na literatura, foram obtidas maiores concentrações de nanopartículas estimadas por picos de absorções plasmônicas maiores que 800 dB/m e por um consequente aumento no índice de refração não linear de pelo menos 50x no regime de onda contínua, obtendo-se valores de n2=(6,75±0,55)×10-15 m²/W. O desenvolvimento dessas fibras e o projeto do ressonador em anel para conversão de frequências oferecem plataformas para o desenvolvimento de dispositivos eficientes e integrados para sistemas ópticos baseados em fibras ópticas e em chips fotônicos.
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Ren, Yundong. "Specially Shaped Optical Fiber Probes: Understanding and Their Applications in Integrated Photonics, Sensing, and Microfluidics." Digital WPI, 2019. https://digitalcommons.wpi.edu/etd-dissertations/569.

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Thanks to their capability of transmitting light with low loss, optical fibers have found a wide range of applications in illumination, imaging, and telecommunication. However, since the light guided in a regular optical fiber is well confined in the core and effectively isolated from the environment, the fiber does not allow the interactions between the light and matters around it, which are critical for many sensing and actuation applications. Specially shaped optical fibers endow the guided light in optical fibers with the capability of interacting with the environment by modifying part of the fiber into a special shape, while still preserving the regular fiber’s benefit of low-loss light delivering. However, the existing specially shaped fibers have the following limitations: 1) limited light coupling efficiency between the regular optical fiber and the specially shaped optical fiber, 2) lack special shape designs that can facilitate the light-matter interactions, 3) inadequate material selections for different applications, 4) the existing fabrication setups for the specially shaped fibers have poor accessibility, repeatability, and controllability. The overall goal of this dissertation is to further the fundamental understanding of specially shaped fibers and to develop novel specially shaped fibers for different applications. In addition, the final part of this dissertation work proposed a microfluidic platform that can potentially improve the light-matter interactions of the specially shaped fibers in fluidic environments. The contributions of this dissertation work are summarized as follows: 1) An enhanced fiber tapering system for highly repeatable adiabatic tapered fiber fabrications. An enhanced fiber tapering system based on a novel heat source and an innovative monitoring method have been developed. The novel heat source is a low-cost ceramic housed electric furnace (CHEF). The innovative monitoring method is based on the frequency-domain optical transmission signal from the fiber that is being tapered. The enhanced fiber tapering system can allow highly repeatable fabrication of adiabatically tapered fibers. 2) A lossy mode resonance (LMR) sensor enabled by SnO2 coating on a novel specially shaped fiber design has been developed. The developed LMR sensor has a D-shape fiber tip with SnO2 coating. It has the capability of relative humidity and moisture sensing. The fiber-tip form factor can allow the sensor to be used like a probe and be inserted into/removed from a tight space. 3) Specially shaped tapered fibers with novel designs have been developed for integrated photonic and microfluidic applications. Two novel specially tapered fibers, the tapered fiber loop and the tapered fiber helix have been developed. The tapered fiber loop developed in this work has two superiority that differentiated itself from previous works: a) the mechanical stability of the tapered fiber loop in this work is significantly better. b) the tapered fiber loops in this work can achieve a diameter as small as 15 ?m while still have a high intrinsic optical quality factor of 32,500. The tapered fiber helix developed in this work has a 3D structure that allows it to efficiently deliver light to locations out of the plane defined by its two regular fiber arms. Applications of the tapered fiber helices in both integrated photonic device characterizations and microparticle manipulations have been demonstrated. 4) Developed an acrylic-tape hybrid microfluidic platform that can allow function reconfiguration and optical fiber integration. A low-cost, versatile microfluidic platform based on reconfigurable acrylic-tape hybrid microfluidic devices has been developed. To the best of the author’s knowledge, this is the first time that the fabrication method of sealing the acrylic channel with a reconfigurable functional tape has been demonstrated. The tape-sealing method is compatible with specially shaped fiber integrations.
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De, Matos Christiano Jose Santiago. "Nonlinear optics in specialty optical fibres." Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419770.

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Jollivet, Clemence. "Specialty Fiber Lasers and Novel Fiber Devices." Doctoral diss., University of Central Florida, 2014. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6295.

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At the Dawn of the 21st century, the field of specialty optical fibers experienced a scientific revolution with the introduction of the stack-and-draw technique, a multi-steps and advanced fiber fabrication method, which enabled the creation of well-controlled micro-structured designs. Since then, an extremely wide variety of finely tuned fiber structures have been demonstrated including novel materials and novel designs. As the complexity of the fiber design increased, highly-controlled fabrication processes became critical. To determine the ability of a novel fiber design to deliver light with properties tailored according to a specific application, several mode analysis techniques were reported, addressing the recurring needs for in-depth fiber characterization. The first part of this dissertation details a novel experiment that was demonstrated to achieve modal decomposition with extended capabilities, reaching beyond the limits set by the existing mode analysis techniques. As a result, individual transverse modes carrying between ~0.01% and ~30% of the total light were resolved with unmatched accuracy. Furthermore, this approach was employed to decompose the light guided in Large-Mode Area (LMA) fiber, Photonic Crystal Fiber (PCF) and Leakage Channel Fiber (LCF). The single-mode performances were evaluated and compared. As a result, the suitability of each specialty fiber design to be implemented for power-scaling applications of fiber laser systems was experimentally determined. The second part of this dissertation is dedicated to novel specialty fiber laser systems. First, challenges related to the monolithic integration of novel and complex specialty fiber designs in all-fiber systems were addressed. The poor design and size compatibility between specialty fibers and conventional fiber-based components limits their monolithic integration due to high coupling loss and unstable performances. Here, novel all-fiber Mode-Field Adapter (MFA) devices made of selected segments of Graded Index Multimode Fiber (GIMF) were implemented to mitigate the coupling losses between a LMA PCF and a conventional Single-Mode Fiber (SMF), presenting an initial 18-fold mode-field area mismatch. It was experimentally demonstrated that the overall transmission in the mode-matched fiber chain was increased by more than 11 dB (the MFA was a 250 ?m piece of 50 ?m core diameter GIMF). This approach was further employed to assemble monolithic fiber laser cavities combining an active LMA PCF and fiber Bragg gratings (FBG) in conventional SMF. It was demonstrated that intra-cavity mode-matching results in an efficient (60%) and narrow-linewidth (200 pm) laser emission at the FBG wavelength. In the last section of this dissertation, monolithic Multi-Core Fiber (MCF) laser cavities were reported for the first time. Compared to existing MCF lasers, renown for high-brightness beam delivery after selection of the in-phase supermode, the present new generation of 7-coupled-cores Yb-doped fiber laser uses the gain from several supermodes simultaneously. In order to uncover mode competition mechanisms during amplification and the complex dynamics of multi-supermode lasing, novel diagnostic approaches were demonstrated. After characterizing the laser behavior, the first observations of self-mode-locking in linear MCF laser cavities were discovered.
Ph.D.
Doctorate
Optics and Photonics
Optics and Photonics
Optics and Photonics
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Fermann, Martin. "Characterisation techniques for special optical fibres." Thesis, University of Southampton, 1988. https://eprints.soton.ac.uk/404728/.

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Special optical fibres are introduced with the emphasis on rare-earth-doped fibres and fibres with crystal-like properties. Characterisation techniques for these types of fibre are discussed and several applications are described. In particular, optical time-domain reflectometry is used to demonstrate a distributed temperature sensor based on the temperature dependence of the absorption in rare-earth-doped fibres. Further, energy transfer between ytterbium and erbium is characterised and an erbium fibre laser sensitised with ytterbium is demonstrated. Finally, techniques for the creation of crystal-like properties in optical fibres are developed and second-order nonlinear phenomena in these fibres are analysed both experimentally and theoretically.
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Beffara, Flavien. "SERS biosensors based on special optical fibers for clinical diagnosis." Thesis, Limoges, 2021. http://www.theses.fr/2021LIMO0009.

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Malgré d'importantes percées dans le domaine de la biodétection, nous avons toujours besoin de nouveaux capteurs qui faciliteraient la détection précoce de maladies graves comme le cancer. La biopsie tissulaire classique reste la référence dans de nombreux cas. Bien que cette approche ait montré son potentiel, elle reste invasive pour les patients et les techniques de détection sont fastidieuses ou manquent de sensibilité pour détecter la maladie à un stade précoce. La spectroscopie Raman a démontré son intérêt pour la biodétection. Sa capacité à caractériser la nature chimique, la structure et l'orientation d'un analyte, en fait un candidat idéal. Les pics Raman très nets d'une molécule peuvent être considérés comme une véritable empreinte digitale. Malheureusement, le signal Raman diffusé est extrêmement faible. Cette limitation a été surmontée par la spectroscopie Raman exaltée de surface (SERS), car elle augmente considérablement le signal Raman diffusé tout en maintenant la largeur des pics du spectre d'une molécule. Malheureusement, la plupart des substrats SERS actuels sont soit des surfaces métalliques nano-rugueuses en 2D soit des nanoparticules colloïdales, qui manquent de sensibilité et de fiabilité dans les mesures avec une faible répétabilité et reproductibilité des données. Ces dernières années, des fibres optiques spéciales ont été utilisées comme plateformes SERS. Elles comportent des trous qui s'étendent sur toute leur longueur. Ces trous permettent d'incorporer l'analyte à l'intérieur de la fibre. Ainsi, une telle plate-forme représente une alternative prometteuse aux substrats plans puisque l'analyte et la lumière d'excitation peuvent interagir sur une plus grande longueur à l'intérieur des fibres. De plus, les fibres optiques sont très flexibles, compactes, et permettent un guidage de la lumière à faible perte. Par conséquent, ces capteurs à fibres présentent à la fois les capacités de détection exceptionnelles du SERS, les avantages des fibres optiques et une sensibilité et une fiabilité améliorées. Dans ce manuscrit, nous visons à créer une plateforme de biodétection qui pourrait être utilisée dans un cadre clinique. Pour cela, nous proposons d'optimiser les caractéristiques d'une topologie de fibre déjà existante. Cela nous permet d'augmenter sa sensibilité tout en améliorant sa fiabilité et sa facilité d’utilisation. Grâce à ce capteur amélioré, nous avons pu pour la première fois détecter le biomarqueur du cancer de l'ovaire dans les fluides de kystes cliniques, ce qui nous a permis de différencier le stade du cancer. Par la suite, nous proposons une nouvelle topologie de fibre, spécifiquement conçue pour augmenter encore la sensibilité des sondes à fibre basées sur le SERS. Cette amélioration est réalisée en augmentant la surface d'interaction par rapport aux sondes à fibre standard. Pour cela, le diamètre du noyau est considérablement augmenté et la quantité de lumière qui interagit avec l'analyte est contrôlée avec précision. Nous envisageons que de tels capteurs à fibres fonctionnalisés puissent être incorporés à l'intérieur d'une aiguille de biopsie afin de créer un capteur deux-en-un pour la collecte et l’analyse de fluides corporels. Les limitations associées aux aiguilles de biopsie actuelles, qui exigent une collecte et une analyse des échantillons en deux étapes, pourraient ainsi être surmontées
Despite important breakthroughs in biosensing, we are still in need of new sensors that would facilitate the early detection of severe diseases such as cancer. Classical tissue biopsy remains the gold standard in many cases. Although this approach has shown its potential, it remains invasive for the patients and the detection techniques are either tedious or lack the sensitivity to detect the disease at an early stage. Raman spectroscopy has demonstrated its interests for biosensing. Its ability to characterize the chemical nature, structure and the orientation of an analyte makes it an ideal candidate. The sharp Raman peaks of a molecule can be seen as a true fingerprint. Regrettably, Raman scattered signal is extremely weak. This limitation was overcome by surface enhanced Raman spectroscopy (SERS), since it drastically increases the Raman scattered signal while maintaining the sharp peak of the fingerprint spectrum of a molecule. Unfortunately, most of the current SERS substrates are 2D nano-roughened metal surfaces or colloidal nanoparticles, which lack the sensitivity and reliability in measurement with poor repeatability and reproducibility in the data. In the recent years, special optical fibers have been used as SERS platforms. They feature holes that run along their entire length. These holes allow for the analyte to be incorporated inside the fiber. Thus, such platform represents a promising alternative to planar substrates since the analyte and the excitation light can interact for longer length inside the fibers. In addition, optical fibers are very flexible, compact and allow for low-loss light guiding. Therefore, such fiber sensors exhibit the outstanding detection abilities of SERS, the advantages of optical fibers and improved sensitivity and reliability. In this manuscript, we aim to create a biosensing platform that could be routinely used in a clinical setting. For that, we propose to optimize the features of an already reported fiber topology. This allows us to increase its sensitivity while simultaneously improving its reliability and practicability. With this improved sensor, for the first time, we could detect the biomarker for ovarian cancer in clinical cyst fluids, which allowed us to differentiate the stage of the cancer. Subsequently, we propose a novel fiber topology, specifically designed to further increase the sensitivity of SERS-based fiber probes. This is achieved by increasing the surface of interaction compared to standard fiber sensors. For that, the core diameter is significantly increased and the amount of light that interacts with the analyte is precisely controlled. We envision that such functionalized fiber sensors could be incorporated inside a biopsy needle to create a two-in-one sensor for body fluid collection and readout that can eventually overcome the limitations associated with existing biopsy needle platforms, which demands for two-step sample collection and readout
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9

Alvi, Bilal Ahmad. "Fabrication and light guiding of special optical fibres." Thesis, University of Salford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333980.

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Zhang, Huijia. "Utilization of powder method for the realization of special optical fibers." Limoges, 2012. https://aurore.unilim.fr/theses/nxfile/default/c1310238-dca3-4100-a20a-da9f7575552b/blobholder:0/2012LIMO4023.pdf.

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Recently, multimaterial optical fiber whose core and cladding's compositions are different materials attracts more and more attention of researchers in many countries. When using very different compositions of glasses, these fibers can present higher refractive index difference leading to strong nonlinear coefficient. We can extend use of material to metals, and link electrical and optical functions giving hybrid devices. In these thesis, after a presentation of well known fabrication processes and more original ones, we propose to develop the powder-in-tube method to fabricate two original fibers : first one is a solid core ARROW bandgap fiber with Lanthano Alumino Silicate glass as high index rod to realize a low transmission and bend loss fiber. Application can be in the field of high power laser transmission. The second fiber studied includes copper metallic wires. One microsize coaxial cable with improved structure was designed, modelized and realized to demonstrate the interest of such a structure up to 100 GHz and more. These two fibers mixed the powder in tube method with the well-known stack and draw process
Les fibres optiques « multimatériaux », sont définies comme des guides optiques où le cœur et la gaine de la fibre optique sont composés de matériaux de composition ou de nature différentes. Ces fibres attirent l'attention de plus en plus de chercheurs, et ce dans de nombreux pays, car selon les différentes compositions des verres, ces fibres optiques peuvent présenter des propriétés originales. Dans cette thèse , après une présentation des procédés de fabrication bien connus et d'autres plus originaux, nous proposons de développer le procédé « poudre » pour fabriquer deux fibres multimatériaux originales. La première est une fibre à bande interdite photonique composée d'un cœur de silice et d'un cristal photonique bidimensionnel d'inclusions d'un verre de Silice Aluminium Lanthane. Ce verre permet de développer ce type de fibre avec des inclusions dont l'indice de réfraction est plus important que la plupart des fibres à bande interdite rapportées. Les propriétés de ces fibres ont été étudiées ce qui à conduit à la conception et la fabrication d'une fibre optimisée. La deuxième fibre étudiée comprend des fils métalliques de cuivre. Nous avons étendu le procédé de fabrication aux fibres verre / métal. Un câble coaxial de taille micrométrique a été modélisé, optimisé et réalisé pour démontrer l'intérêt d'une telle structure pour guider des signaux micro-ondes à 100 GHz. Les procédés développés pour la fabrication des ces deux fibres associent le procédé « poudre » et le procédé « stack-and-draw »
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Books on the topic "Specialty optical fibers"

1

Alexis, Méndez, and Morse T. F, eds. Specialty optical fibers handbook. Amsterdam: Academic Press, 2007.

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1942-, Harrington James A., Katzir Abraham, International Biomedical Optics Society, and Society of Photo-optical Instrumentation Engineers., eds. Proceedings of specialty fiber optics for medical applications: 24-25 January 1999, San Jose, California. Bellingham, Wash., USA: SPIE, 1999.

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Workshop on Specialty Optical Fibers and Their Applications (1st 2008 São Pedro, São Paulo, Brazil). 1st Workshop on Specialty Optical Fibers and Their Applications: São Pedro, SP, Brazil, 20-22 August 2008. Edited by Cordeiro Cristiano M. B and Matos, Christiano J. S. de. Melville, N.Y: American Institute of Physics, 2008.

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Optical Fiber Communications/Optical Fiber Sensors Conference (1988 New Orleans). The 1988 Optical Fiber Communications/Optical FiberSensorsConference: Special issue. Edited by Linke R. A, Morrow A. J, Conference on Optical FiberCommunications, (11th : 1988 : NewOrleans), and International Conference on Optical Fiber Sensors, (5th : 1988 : New Orleans). New York: Institute of Electrical and Electronics Engineers, 1988.

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Alvi, Bilal Ahmad. Fabrication and light guiding of special optical fibres. Salford: University of Salford, 1993.

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National Institute of Standards and Technology (U.S.), ed. TECHNICAL DIGEST SYMPOSIUM ON OPTICAL FIBER MEASUREMENTS, 2000... NIST SPECIAL PUBLICATION 953... U.S. DEPARTMENT OF COMMERCE. [S.l: s.n., 2001.

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1953-, Renard J., ed. Fundamentals of fibre reinforced composite materials. Bristol: Institute of Physics Publishing, 2005.

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National Institute of Standards and Technology (U.S.), ed. Calibration Service For Spectral Responsivity Of Laser And Optical-Fiber Power Meters At Wavelengths Between 0.4 UM..., NIST Special Publication 250-43... U.S. Department Of Commerce. [S.l: s.n., 2000.

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(Editor), Alexis Mendez, and T. F. Morse (Editor), eds. Specialty Optical Fibers Handbook. Academic Press, 2007.

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(Editor), Alexis Mendez, and T. F. Morse (Editor), eds. Specialty Optical Fibers Handbook. Academic Press, 2007.

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Book chapters on the topic "Specialty optical fibers"

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Chai, Quan, Yushi Chu, and Jianzhong Zhang. "Characterization of Specialty Fibers." In Handbook of Optical Fibers, 1–59. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-1477-2_59-1.

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Chai, Quan, Yushi Chu, and Jianzhong Zhang. "Characterization of Specialty Fibers." In Handbook of Optical Fibers, 1–50. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-10-1477-2_59-2.

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Chai, Quan, Yushi Chu, and Jianzhong Zhang. "Characterization of Specialty Fibers." In Handbook of Optical Fibers, 1177–226. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-10-7087-7_59.

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Qin, Guanshi. "Specialty Optical Fibers for Raman Lasers." In Raman Fiber Lasers, 205–33. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65277-1_5.

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Beugnot, Jean-Charles, and Thibaut Sylvestre. "Shaping Brillouin Light in Specialty Optical Fibers." In Shaping Light in Nonlinear Optical Fibers, 461–76. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119088134.ch16.

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Pal, Bishnu P., A. Barh, S. Ghosh, R. K. Varshney, J. Sanghera, L. B. Shaw, and I. D. Aggarwal. "Specialty Optical Fibers for Mid-IR Photonics." In Springer Proceedings in Physics, 13–16. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2367-2_3.

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Romaniuk, Ryszard S. "Special Optical Fibres." In Laser/Optoelektronik in der Technik / Laser/Optoelectronics in Engineering, 766–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-48372-1_162.

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Weik, Martin H. "special optical fiber." In Computer Science and Communications Dictionary, 1627–28. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_17841.

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Weik, Martin H. "special fiber optic cable." In Computer Science and Communications Dictionary, 1626–27. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_17830.

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Chattopadhyay, Rik, Arindam Haldar, Mukul C. Paul, and Shyamal K. Bhadra. "Noble Metal Doped Optical Fiber for Specialty Light Source." In Springer Proceedings in Physics, 95–105. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3908-9_12.

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Conference papers on the topic "Specialty optical fibers"

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Banerjee, Hritwick, Nicola Bartolomei, and Fabien Sorin. "Soft Microstructured Optical Fibers via Thermal Drawing." In Specialty Optical Fibers. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/sof.2022.som2h.1.

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The preform-to-fiber thermal drawing of thermoplastic elastomers enables the fabrication of soft multi-material optical fibers with complex architectures. It offers unprecedented opportunities to realize complex soft optical fibers for transmission and sensing.
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Khramov, I., and O. Ryabushkin. "Fiber Laser Power Measurements Using Optical Fibers with Metal Winding." In Specialty Optical Fibers. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/sof.2022.soth3g.3.

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Various optical fibers with copper winding were used for the real-time measuring the fiber lasers output optical power. The mathematical model of the fiber heating allowed determining the induced microbending losses.
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Lyu, Zhouping, and Lyubov V. Amitonova. "Hollow-core fiber imaging." In Specialty Optical Fibers. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/sof.2022.sotu4i.4.

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Multimode fibers serve as high-resolution imaging probes. We show that a hollow-core fiber solves the problems of high background and limited NA. We experimentally demonstrate high-NA raster-scan and compressive imaging through a hollow-core multimode fiber.
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Jiang, Shibin. "2 Micron Fiber Lasers Using Silicate Glass Fibers." In Specialty Optical Fibers. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/sof.2014.sotu2b.1.

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Melli, F., K. Vasko, L. Rosa, L. Vincetti, and F. Benabid. "Transverse Roughness Effect on Fundamental Mode Confinement Loss and Modal Content of Hollow-Core Inhibited Coupling Tube Lattice Fibers." In Specialty Optical Fibers. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/sof.2022.sotu1i.3.

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The effects of the transverse surface roughness on fiber loss and modal content in hollow-core inhibited coupling tube lattice fibers is numerically investigated. Relationship between roughness spectrum and loss of core modes is assessed.
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Villatoro, Joel. "Coupled-core optical fiber sensing." In Specialty Optical Fibers. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/sof.2022.soth1h.3.

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The use of optical fibers with coupled cores is proposed for sensing applications. The interrogation of coupled-core fiber sensors is simple, fast and inexpensive as the parameter being sensed can be detected as intensity changes.
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Jiang, Shibin. "Multi-Component Glass Fibers for 2 Micron Fiber Lasers." In Specialty Optical Fibers. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/sof.2011.somb4.

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Naghdi, Behnam, Lixian Wang, Manish Sharma, and Zhiping Jiang. "Highly Dispersive yet Low Loss Hollow Core Fibers by Using a Combination of Anti-resonant and Resonant Elements." In Specialty Optical Fibers. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/sof.2022.sotu1i.6.

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To achieve a dispersive fiber, we propose and numerically investigate an approach based on adding resonant elements to anti-resonant hollow core fibers (AR-HCF). Dispersion as large as 17,600 ps.nm − 1.km − 1 is obtained along with < 21dB.km − 1 confinement loss.
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Payne, David N. "Special or Specialty Optical Fibres?" In Workshop on Specialty Optical Fibers and their Applications. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/wsof.2015.ww1a.1.

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Sahu, Jayanta K., and Deepak Jain. "Novel large-mode area fibers for high power fiber lasers." In Specialty Optical Fibers. Washington, D.C.: OSA, 2016. http://dx.doi.org/10.1364/sof.2016.sow1h.1.

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Reports on the topic "Specialty optical fibers"

1

Erdmann, Reinhard. Applications of Nonlinear Optic Effects in New Specialty Fibers. Fort Belvoir, VA: Defense Technical Information Center, June 1993. http://dx.doi.org/10.21236/ada268890.

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Crowley. L51778 Fiber Optic Strain Monitoring of Pipelines. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), January 2000. http://dx.doi.org/10.55274/r0010621.

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�The objective of this project was to demonstrate the feasibility of using fiber optic Bragg grating sensors (BGS) to measure axial and bending strain in pipes. Work was performed by McDermott Technology Inc. (MTI) and included BGS design and procurement. In addition to the pipe strain testing, a number of other evaluations were performed. Several methods were evaluated to protect and encapsulate the BGS, which are embedded inside an optical fiber, and strain transfer tests were performed on two of the encapsulation approaches. A high strain bending test to failure was performed on one BGS. A special test section was used to characterize the performance of the BGS and compare to standard electrical resistance foil strain gages.
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Colombo, Karina, Elisa Failache, and Martina Querejeta. High-Speed Internet and Socioemotional Wellbeing in Uruguayan Youth. Inter-American Development Bank, November 2023. http://dx.doi.org/10.18235/0005154.

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This paper analyses the causal effects of exposure to high-speed internet on socioemotional wellbeing in adolescence and youth. We exploit the geographic and cross-cohort differences in fiber optic accessibility given by the fiber-optic-to-the-home (FTTH) project developed in Uruguay in the period 2011-2018. We identify intention-to-treat effects by combining administrative data on FTTH rollout with large survey data specially designed to collect outcomes in youth. Our results show that access to high-speed internet has mixed effects on mental health. Going from 0 to a 100% probability in FTTH accessibility reduces the incidence of feeling lonely in 9 percentage points (pp) but increases the incidence of feeling worried in 9 pp. We also find an increase in the probability of having a medical visit in 10 pp, without statistically significant effects in visits to a psychologist or psychiatrist. Our results further evidence an increase in the probability of alcohol and marijuana consumption, showing that internet access can also affect risky behaviours. The analysis of heterogeneous effects by gender, age, region of residence, and educational background shows that, while the effect on feeling worried is observed across all sub-samples, the reduction in loneliness is mostly explained by boys, individuals under 18, and with lower educational background. Dissatisfaction with their way of being emerges as the leading mechanism behind the detrimental effect on feeling worried. We do not find any evidence on FTTH access displacing offline recreational activities at the extensive margin.
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Kwon, Heeseo Rain, HeeAh Cho, Jongbok Kim, Sang Keon Lee, and Donju Lee. International Case Studies of Smart Cities: Orlando, United States of America. Inter-American Development Bank, June 2016. http://dx.doi.org/10.18235/0007015.

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This case study is one of ten international studies developed by the Korea Research Institute for Human Settlements (KRIHS), in association with the Inter-American Development Bank (IDB), for the cities of Anyang, Medellin, Namyangju, Orlando, Pangyo, Rio de Janeiro, Santander, Singapore, Songdo, and Tel Aviv. At the IDB, the Competitiveness and Innovation Division (CTI), the Fiscal and Municipal Management Division (FMM), and the Emerging and Sustainable Cities Initiative (ESCI) coordinated the study. This project was part of technical cooperation ME-T1254, financed by the Knowledge Partnership Korean Fund for Technology and Innovation of the Republic of Korea. At KRIHS, the National Infrastructure Research Division coordinated the project and the Global Development Partnership Center provided the funding. As an international destination for theme parks, sporting events and conventions, Orlando approaches the smart city operation through Orlando Operations Center (OOC), an integrated facility established in 2001 by the Mayor after the 1997 hurricane. The major features of the integrated operation include the sharing of fiber optic networks and CCTV cameras, and close cooperation between transport, police and fire departments for road, criminal and disaster incident, and the emergency operation center within the OOC taking the lead in case of special event management and large-scale natural disasters. Along with the OOC, the city hall also utilizes smart city functions such as red light violation enforcement through detectors, bus management through AVL technology, GPS garbage truck tracking, and GIS water management. Orlando has experienced significant benefits in terms of shortened decision-making and response time, reduced operation cost, and improved environmental impacts, as well as enhanced service quality and communication with citizen.
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