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Journal articles on the topic 'Optical fibers'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Jóźwicki, Mateusz Łukasz, Mateusz Gargol, Małgorzata Gil-Kowalczyk, and Paweł Mergo. "Commercially available granulates PMMA and PS - potential problems with the production of polymer optical fibers." Photonics Letters of Poland 12, no. 3 (2020): 79. http://dx.doi.org/10.4302/plp.v12i3.1036.

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The aim of the study was to verify the usefulness of commercially available granulates of PMMA (poly (methyl methacrylate) and PS (polystyrene) for the production of polymer optical fibers by extrusion method. Samples were subjected to thermal processing in various conditions (different temperatures and exposure time). Thermal (TG/DTG) and spectroscopic (ATR/FT-IR) analyses were carried out to analyze changes in the samples. Based on FT-IR analysis of liquid monomers and granulates the conversion of double bonds was calculated, which gave us a picture of the degree of monomers conversion, cruc

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Tandon, Pushkar, Ming-Jun Li, Dana C. Bookbinder, Stephan L. Logunov, and Edward J. Fewkes. "Nano-engineered optical fibers and applications." Nanophotonics 2, no. 5-6 (2013): 383–92. http://dx.doi.org/10.1515/nanoph-2013-0032.

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AbstractThe paper reviews optical fibers with nano-engineered features and methods to fabricate them. These optical fibers have nano-engineered regions comprising of randomly distributed voids which provide unique properties for designing next generation of fibers. Discussion of impact of void morphology on fiber optical properties is presented, along with the methods to control the void characteristics. Use of nano-engineered fibers for different applications (ultra-low bend loss single mode fiber, quasi-single mode bend loss fiber, endless single-mode fiber, light diffusing fibers) is discus

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Krivenko, Yu E., and E. I. Andreeva. "Traffic interception in fiber optical video-systems." Journal of Physics: Conference Series 2086, no. 1 (2021): 012150. http://dx.doi.org/10.1088/1742-6596/2086/1/012150.

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Abstract In fiber-optic video systems, as well as in optical communication systems, standard single mode optical fibers (SSMF, standard G.652) are usually used. One of the advantages of these fibers is the ability to use CWDM in a wide spectrum. At the same time, more optimal near the wave-length of 1550 nm are provided by non-zero dispersion fiber (NZDSF, standard G.655) fibers. However, as studies have shown, these optical fibers have an increased sensitivity to bending. This fact can be used to traffic interception. It is shown that fiber-optics systems with SSMF have more protection from t

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Cozic, Solenn, Simon Boivinet, Christophe Pierre, Johan Boulet, Samuel Poulain, and Marcel Poulain. "Splicing fluoride glass and silica optical fibers." EPJ Web of Conferences 215 (2019): 04003. http://dx.doi.org/10.1051/epjconf/201921504003.

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Splicing fluoride glass fibers and silica fibers is a critical point for manufacturing all fibered laser modules. As these materials are extremely different, various problems must be considered: thermal, expansion, mechanical, chemical. Reliability and power handling make priority concerns. We report splices made on a 200/220 multimode silica fiber and a double clad 15/250/290 ZBLAN fiber. Splices are proof tested at 300 g tensile strength. No damage is observed after thermal cycling from -30 °C to 85 °C, at 40 % RH during 24 hours. Typical optical splice loss is about 0.2 dB. They withstand 2

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Boyd, Robert W., and Eric L. Buckland. "Nonlinear Optical Interactions in Optical Fibers." Journal of Nonlinear Optical Physics & Materials 07, no. 01 (1998): 105–12. http://dx.doi.org/10.1142/s0218863598000089.

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We report on our research program aimed at clarifying the physical processes leading to the nonlinear optical response of silica optical fibers and at studying the implications of optical nonlinearities on optical pulse propagation and optical switching devices. The dominant physical processes leading to the nonlinear optical response of an optical fiber are nonresonant electronic polarization, with essentially instantaneous response, the Raman interaction, with sub-picosecond response, and electrostriction, with nanosecond response. We present experimental results that show the consequence of

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Romaniuk, Ryszard S., and Waldemar Wójcik. "Optical Fiber Technology 2012." International Journal of Electronics and Telecommunications 59, no. 2 (2013): 131–40. http://dx.doi.org/10.2478/eletel-2013-0016.

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Abstract The Conference on Optical Fibers and Their Applications, Nałȩczów 2012, in its 14th edition, which has been organized since more than 35 years, has summarized the achievements of the local optical fiber technology community, for the last year and a half. The conference specializes in developments of optical fiber technology, glass and polymer, classical and microstructured, passive and active. The event gathered around 100 participants. There were shown 60 presentations of 20 research and application groups active in fiber photonics, originating from academia and industry. Topical tr

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7

Barczak, K. "Magnetooptic effect of photonic crystal fiber in blue region of visible spectrum." Bulletin of the Polish Academy of Sciences Technical Sciences 62, no. 4 (2014): 683–89. http://dx.doi.org/10.2478/bpasts-2014-0074.

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Abstract The phenomenon of optical birefringence in optical fibers is caused by external factors and stress induced by the manufacturing process. This optical birefringence makes it difficult to apply optical fibers as a polarimetric sensors head. Author of this paper, proposes the application of index guiding photonic crystal fibers because stress values in a fiber core caused by internal and external factors are lower. In this paper investigation results extended in comparison with the previous author’s investigations are presented. This extension relies on investigation of magnetooptic for

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Pickrell, Gary R., Evgenya S. Smirnova, Stanton L. De Haven, and Robert S. Rogowski. "Hybrid Ordered Hole-Random Hole Optical Fibers." Advances in Science and Technology 45 (October 2006): 2598–607. http://dx.doi.org/10.4028/www.scientific.net/ast.45.2598.

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Photonic band gap (PBG) fibers have generated significant interest over the last decade due to the unique set of properties these fibers exhibit. In general, these fibers have been made by drawing a series of glass tubes (which are stacked in an ordered array) into a fiber. These fibers consist of an ordered arrangement of holes or tubes in a glass matrix. In this invited paper we describe a novel type of fiber, called HORHOFs (hybrid ordered random hole optical fibers). In these fibers, the refractive index of the ordered-hole region is controlled by incorporation of very small tubes of glass

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Pang, Yuli, Xu Lu, Xin Zhang, et al. "Recent Advances in Fabrication and Applications of Yttrium Aluminum Garnet-Based Optical Fiber: A Review." Materials 17, no. 14 (2024): 3426. http://dx.doi.org/10.3390/ma17143426.

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Yttrium aluminum garnet (YAG)-based optical fiber is one of the research hotspots in the field of fiber lasers due to its combined advantages of a wide doping range of rare earth ions and the high mechanical strength of YAG material, as well as the flexibility and small size of the fiber structure. YAG-based optical fibers and related laser devices can be used in communication, sensing, medicine, etc. A comprehensive review of YAG-based optical fibers is provided in this paper. Firstly, the fabrication processes of YAG-based optical fibers are summarized and the structure and properties of fib

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Carmo, J. P., and J. E. Ribeiro. "Optical Fibers on Medical Instrumentation." International Journal of Biomedical and Clinical Engineering 2, no. 2 (2013): 23–36. http://dx.doi.org/10.4018/ijbce.2013070103.

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This paper provides a revision with the state-of-the-art related to the use of optical fiber sensors on medical instrumentation. Two types of optical fiber sensors are the focus of review: conventional optical fibers for communications and fiber Bragg gratings (FBGs).

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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 (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

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Watanabe, Nobuyuki, and Kozo Taguchi. "Theoretical Investigation of an Optical Vibration Using Laser Beams from Optical Fibers Inserted at an Angle of 35 Degrees." Key Engineering Materials 523-524 (November 2012): 1059–64. http://dx.doi.org/10.4028/www.scientific.net/kem.523-524.1059.

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Optical trapping is a technique that is used to capture, translate, and manipulate microscopic particles, such as dielectric microspheres and cells. This cell manipulation and examination technology can be integrated on a Lab-on-a-Chip device. We have already developed an optically vibration system. The optical vibration system was formed using a temperature stabilized 1480nm cw diode laser. The output of laser light was coupled into optical fibers, which had optical connectors at these fiber ends. The fiber end had a hemispherical micro-lens with 5μm radius of curvature for focusing the laser

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Sumetsky, M. "Nanophotonics of optical fibers." Nanophotonics 2, no. 5-6 (2013): 393–406. http://dx.doi.org/10.1515/nanoph-2013-0041.

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AbstractThis review is concerned with nanoscale effects in highly transparent dielectric photonic structures fabricated from optical fibers. In contrast to those in plasmonics, these structures do not contain metal particles, wires, or films with nanoscale dimensions. Nevertheless, a nanoscale perturbation of the fiber radius can significantly alter their performance. This paper consists of three parts. The first part considers propagation of light in thin optical fibers (microfibers) having the radius of the order of 100 nanometers to 1 micron. The fundamental mode propagating along a microfi

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Irving, M., J. Maylie, N. L. Sizto, and W. K. Chandler. "Intrinsic optical and passive electrical properties of cut frog twitch fibers." Journal of General Physiology 89, no. 1 (1987): 1–40. http://dx.doi.org/10.1085/jgp.89.1.1.

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This article describes a new apparatus for making simultaneous optical measurements on single muscle fibers at three different wavelengths and two planes of linear polarization. There are two modes of operation: mode 1 measures the individual absorbances of light linearly polarized along and perpendicular to the fiber axis, and mode 2 measures retardation (or birefringence) and the average of the two absorbance components. Although some intact frog twitch fibers were studied, most experiments used cut fibers (Hille, B., and D. T. Campbell. 1976. Journal of General Physiology. 67:265-293) mount

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Wójcik, Grzegorz Michał. "Optimization of silica glass capillary and rods drawing process." Photonics Letters of Poland 11, no. 1 (2019): 19. http://dx.doi.org/10.4302/plp.v11i1.891.

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Diameter fluctuations of silica glass rods and capillaries, during drawing process have been studied. We investigated an influence of drawing conditions on the quality of capillaries and rods. We fabricated two preforms made from different quality material. Fabricated preforms were used to draw microstructured fibers. Full Text: PDF ReferencesS. Habib et al., "Broadband dispersion compensation of conventional single mode fibers using microstructure optical fibers", Int. J. Lig. Opt. 124, 3851-3855 (2013) CrossRef A. Ziolowicz et al. "Overcoming the capacity crunch: ITU-T G.657.B3 compatible 7-

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Kang, Seunggu, Hongy Lin, Delbert E. Day, and James O. Stoffer. "Optically Transparent Polymethyl Methacrylate Composites made with Glass Fibers of Varying Refractive Index." Journal of Materials Research 12, no. 4 (1997): 1091–101. http://dx.doi.org/10.1557/jmr.1997.0152.

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The dependence of the optical and mechanical properties of optically transparent polymethyl methacrylate (PMMA) composites on the annealing temperature of BK10 glass fibers was investigated. Annealing was used to modify the refractive index (R.I.) of the glass fiber so that it would more closely match that of PMMA. Annealing increased the refractive index of the fibers and narrowed the distribution of refractive index of the fibers, but lowered their mechanical strength so the mechanical properties of composites reinforced with annealed fibers were not as good as for composites containing as-p

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17

Niedźwiedź, Malwina Julita, Małgorzata Gil, Mateusz Gargol, Wiesław Marian Podkościelny, and Paweł Mergo. "Determination of the optimal extrusion temperature of the PMMA optical fibers." Photonics Letters of Poland 11, no. 1 (2019): 7. http://dx.doi.org/10.4302/plp.v11i1.889.

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The aim of this work was to determine optimal extrusion temperature for polymer optical fibers. For preliminary studies poly(methyl methacrylate) (PMMA) granulate was used. Samples of commercially available PMMA were subjected to four different temperatures in which were kept in oven for three different period of time. To examine the changes in the chemical structure of the polymer, an ATR-FT-IR (Attenuation Total Reflection Fourier Transform Infrared Spectroscopy) was chosen. Full Text: PDF ReferencesK. Peters, "Polymer optical fiber sensors—a review", Smart Mater. Struct. 20, 013002 (2011) C

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18

Liñares-Beiras, Jesús, Xesús Prieto-Blanco, Daniel Balado, and Gabriel M. Carral. "Autocompensating Measurement-Device-Independent quantum cryptography in few-mode optical fibers." EPJ Web of Conferences 238 (2020): 09002. http://dx.doi.org/10.1051/epjconf/202023809002.

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We present an autocompensating quantum cryptography technique for Measurement-Device-Independent quantum cryptography devices with different kind of optical fiber modes. We center our study on collinear spatial modes in few-mode optical fibers by using both fiber and micro-optical components. We also indicate how the obtained results can be easily extended to polarization modes in monomode optical fibers and spatial codirectional modes in multicore optical fibers.

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Borzycki, Krzysztof, and Tomasz Osuch. "Hollow-Core Optical Fibers for Telecommunications and Data Transmission." Applied Sciences 13, no. 19 (2023): 10699. http://dx.doi.org/10.3390/app131910699.

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Hollow-core optical fibers (HCFs) have unique properties like low latency, negligible optical nonlinearity, wide low-loss spectrum, up to 2100 nm, the ability to carry high power, and potentially lower loss then solid-core single-mode fibers (SMFs). These features make them very promising for communication networks and similar applications. However, this class of fibers is still in development. Current applications are almost exclusively limited to low-latency data links for High-Speed Trading (HST); other uses are in the trial stage now. In this paper, we comprehensively review the progress i

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Shen, Lingyu, Chuanxin Teng, Zhuo Wang, Hongyi Bai, Santosh Kumar, and Rui Min. "Semiconductor Multimaterial Optical Fibers for Biomedical Applications." Biosensors 12, no. 10 (2022): 882. http://dx.doi.org/10.3390/bios12100882.

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Integrated sensors and transmitters of a wide variety of human physiological indicators have recently emerged in the form of multimaterial optical fibers. The methods utilized in the manufacture of optical fibers facilitate the use of a wide range of functional elements in microscale optical fibers with an extensive variety of structures. This article presents an overview and review of semiconductor multimaterial optical fibers, their fabrication and postprocessing techniques, different geometries, and integration in devices that can be further utilized in biomedical applications. Semiconducto

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21

Petukhova, Aleksandra Y., Yuri A. Konin, and Anatolii Victorovich Perminov. "Obtaining a Scattering Structure by the Method of Optical Breakdown in Special Fibers." Applied photonics 9, no. 1 (2023): 26–53. http://dx.doi.org/10.15593/2411-4367/2022.1.02.

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The paper describes a technique for manufacturing samples of fiber diffusers based on fibers with a gradient refractive index profile and a double cladding. Fiber diffusers can be used in medicine, for example, as sources of input radiation in photodynamic therapy or heat sources in phototherapeutic devices such as dressings or blankets. The paper describes experiments on creating quasi-periodic and non-periodic structures from microdefects inside optical fibers by means of optical breakdown and subsequent melting of the fiber core by a moving plasma spark. On the basis of experimental data, t

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22

MacChesney, John. "Optical Fibers." Scientific American 277, no. 2 (1997): 96. http://dx.doi.org/10.1038/scientificamerican0897-96.

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Monerie, M. "Optical Fibers." Physica Scripta T29 (January 1, 1989): 218–22. http://dx.doi.org/10.1088/0031-8949/1989/t29/041.

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M. Hmood, Wasan, and Aqeel R. Salih. "Calculation of Mode Properties for Single-Mode and Multimode Fibers at 633 nm." Ibn AL-Haitham Journal For Pure and Applied Sciences 35, no. 4 (2022): 55–65. http://dx.doi.org/10.30526/35.4.2851.

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The need for optical fibers has emerged for their ability to transmit information with less attenuation over long distances. This work studies four optical fibers with core radii from 1 µm to 4.75 µm in steps of 1.25 µm and a numerical aperture of 0.17. furthermore, The mode properties were calculated at a wavelength of 633 nm by using RP Fiber Calculator (free version 2022). Also, the effect of increasing the core radius on the studied properties has been studied. Multimode fibers can be obtained when the radius of the fiber core is large compared with the fiber's operating wavelength, which

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Takahara, H., F. Togashi, and T. Aragaki. "Ultrasonic sensor using polarization-maintaining optical fiber." Canadian Journal of Physics 66, no. 10 (1988): 844–46. http://dx.doi.org/10.1139/p88-138.

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The interaction between an ultrasonic wave and the laser beam transmitted through a polarization-maintaining optical fiber is analyzed both theoretically and experimentally. An ultrasonic sensor using a polarization-maintaining optical fiber is optically simple; it is easily matched to the source and detection optics; and it has better stability than an optical configuration using two optical fibers.

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Jia, Yan Fei, and Li Quan Zhao. "Design and Implementation of Optical Fiber Line Auto Switch Protection for Power System." Advanced Materials Research 614-615 (December 2012): 949–52. http://dx.doi.org/10.4028/www.scientific.net/amr.614-615.949.

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To overcome the problem that the artificial scheduling can not deal with optical fiber switching in time when optical fiber is broken or damage in power system, we designed an optical fiber line auto switch protection system. The system used six 4x4 optical switches to compose an optical switch array that eight working fibers can share four alternate fibers. Comparing with other system, the new system more effectively utilizes alternate fibers, and is more suitable for practical power system. It used single chip microcomputer as control chip of optical switch, when the received optical power i

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Ma, Jun. "Design and Study of a Novel Regular Decagon Multilayer Photonic Crystal Fiber." Highlights in Science, Engineering and Technology 61 (July 30, 2023): 32–39. http://dx.doi.org/10.54097/hset.v61i.10263.

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This study introduces a unique regular decagon multilayer photonic crystal fiber and investigates its design and properties. Through extensive utilization of COMSOL Multiphysics optical module, the fiber's optical characteristics were thoroughly examined. The simulation outcomes indicate that, within the wavelength range of 1000-1500 nm, the photonic crystal fiber exhibits an effective mode field area ranging from 2.33*10-11 to 2.55*10-11 m2, a nonlinear coefficient between 4.96*10-3 and 8.08*10-3 s³/(kg·m³), a dispersion spanning from 1.46 to 1.54, and a loss varying from 3.76*10-3 to 1.29*10

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Kasik, I., O. Podrazky, J. Mrazek, et al. "Erbium and Al2O3 nanocrystals-doped silica optical fibers." Bulletin of the Polish Academy of Sciences Technical Sciences 62, no. 4 (2014): 641–46. http://dx.doi.org/10.2478/bpasts-2014-0070.

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Abstract. Fibre lasers and inherently rare-earth-doped optical fibers nowadays pass through a new period of their progress aiming at high efficiency of systems and their high power. In this paper, we deal with the preparation of silica fibers doped with erbium and Al2O3 nanocrystals and the characterization of their optical properties. The fibers were prepared by the extended Modified Chemical Vapor Deposition (MCVD) method from starting chlorides or oxide nanopowders. Conventional as well as modified approaches led to a nanocrystalline mullite phase formation in the fiber cores in which erbiu

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Sherburne, Michael, Cameron Harjes, Benjamin Klitsner, et al. "Rapid Prototyping for Nanoparticle-Based Photonic Crystal Fiber Sensors." Sensors 24, no. 12 (2024): 3707. http://dx.doi.org/10.3390/s24123707.

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The advent of nanotechnology has motivated a revolution in the development of miniaturized sensors. Such sensors can be used for radiation detection, temperature sensing, radio-frequency sensing, strain sensing, and more. At the nanoscale, integrating the materials of interest into sensing platforms can be a common issue. One promising platform is photonic crystal fibers, which can draw in optically sensitive nanoparticles or have its optical properties changed by specialized nanomaterials. However, testing these sensors at scale is limited by the the need for specialized equipment to integrat

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Tian, Heng, Ji Hui Wang, Yun Dong Ji, Xu Feng Hao, Yan Zi Yin, and Jiu Xiao Sun. "The Effect of Different Optical Fibers on the Tensile Property of CFRPs." Advanced Materials Research 306-307 (August 2011): 884–87. http://dx.doi.org/10.4028/www.scientific.net/amr.306-307.884.

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This paper mainly investigates the effect of embedded optical fibers on the tensile prosperities of carbon fiber reinforced polymer-matrix composites (CFRPs). Different optical fibers are considered. The results show all the specimens are declining. And Optical Fiber (OF) with 245μm exhibit about 23.5% reduction.

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Cherpak, Pavel, Renat Shaidullin, and Oleg Ryabushkin. "Dependence of optical attenuation on radiation wavelength and waveguide geometry in copper-coated optical fibers." EPJ Web of Conferences 238 (2020): 11013. http://dx.doi.org/10.1051/epjconf/202023811013.

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We demonstrate a novel approach to the determination of optical loss coefficients in metal-coated fibers in a 0.4-1.9 μm wavelength range. It is based on measuring the change of temperature-dependent electrical resistance of the metal coating caused by laser radiation transmitted through the fiber. A number of single-mode and multimode metallized fibers were investigated using several laser sources operating in visible and near infrared ranges. The spectral dependencies of optical losses of copper-coated fibers were experimentally obtained. The region that corresponds to the minimum optical lo

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Li, Zhongzhi, Bin Liu, Gang Fang, Hongyi Cao, Yang Zhao, and Lei Chen. "Comparative analysis of distributed acoustic sensing responses across different optical fiber types for engineering geological exploration." Journal of Physics: Conference Series 2895, no. 1 (2024): 012018. https://doi.org/10.1088/1742-6596/2895/1/012018.

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Abstract Distributed Acoustic Sensing (DAS) has emerged as a revolutionary technology in seismic exploration, offering a novel approach to data acquisition. Despite its widespread adoption, the deployment of DAS in surface engineering exploration faces significant challenges, particularly concerning signal-to-noise ratio limitations and spatial resolution constraints. We conduct a comparative analysis of DAS responses using various types of optical fibers commonly employed for sensing purposes. We evaluate fibers of type A (tight-buffered fiber and strain-sensitive fiber) and type B (communica

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Esfahani Monfared, Yashar. "Overview of Recent Advances in the Design of Plasmonic Fiber-Optic Biosensors." Biosensors 10, no. 7 (2020): 77. http://dx.doi.org/10.3390/bios10070077.

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Plasmonic fiber-optic biosensors combine the flexibility and compactness of optical fibers and high sensitivity of nanomaterials to their surrounding medium, to detect biological species such as cells, proteins, and DNA. Due to their small size, accuracy, low cost, and possibility of remote and distributed sensing, plasmonic fiber-optic biosensors are promising alternatives to traditional methods for biomolecule detection, and can result in significant advances in clinical diagnostics, drug discovery, food process control, disease, and environmental monitoring. In this review article, we overv

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Mazullah Karimi. "Examination of the Implementation and Utilization of Optical Fibers Beams: A Review." International Journal for Research in Applied Sciences and Biotechnology 8, no. 1 (2021): 201–6. http://dx.doi.org/10.31033/ijrasb.8.1.22.

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For light propagation purposes, the optical fibers that are known as waveguides can be applied. A glass or plastic film called cladding covers the central portion of the optical fiber, and is distinguished by a refractive index that is lower relative to the main refractive index. For the fine confines of the light inside the waveguide, the overall internal reflection phenomena are necessary. It is possible to categorize optical fibers according to shape, number of modes, refractive index profile, dispersion, signal processing power, and polarization. We are concentrating on the first three typ

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Bartelt, Hartmut. "Trends in Bragg Grating Technology for Optical Fiber Sensor Applications." Key Engineering Materials 437 (May 2010): 304–8. http://dx.doi.org/10.4028/www.scientific.net/kem.437.304.

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Fiber Bragg gratings have found widespread and successful applications in optical sensor systems, e. g. for temperature, strain or refractive index measurements. Such sensor elements are fiber integrated, are applicable under harsh environmental conditions, and can be easily multiplexed. In order to further extend the field of applications, there is a great interest in specifically adapted Bragg gratings, in Bragg grating structures with increased stability, or in the use of special fiber types for grating inscription. The paper discusses such specific concepts for grating inscription, covers

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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 (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 sys

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Farid, Niveen, Hatem Hussein, and Mohamed El-Bahrawi. "Studying of Optical Fiber Strain Using Speckle Pattern Correlation." International Journal of Engineering Research in Africa 19 (October 2015): 10–18. http://dx.doi.org/10.4028/www.scientific.net/jera.19.10.

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The present work discusses the optical fiber strain induced by the thermal and the mechanical effects. Two different optical fibers of different core diameters were used in the study. The thermal effect was induced by temperature control system in order to raise optical fibers temperatures to controlled values. The mechanical stress was induced on the optical fibers by a micro mechanical stage. The sensitivity of the optical fibers to both effects was studied by speckle pattern correlation in which the speckles are recorded at each disturbance and analyzed. By tracing the recorded speckles , x

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Huang, Bin, Jiaqi Wang, and Xiaopeng Shao. "Fiber-Based Techniques to Suppress Stimulated Brillouin Scattering." Photonics 10, no. 3 (2023): 282. http://dx.doi.org/10.3390/photonics10030282.

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Stimulated Brillouin scattering (SBS) is the major factor that limits the maximum optical fiber output power in narrow linewidth applications, which include important fields such as passive optical networks (PONs), high-power fiber amplifiers, and lasers. Great efforts have been dedicated to suppressing the SBS effect and increasing the maximum optical fiber output power. This paper focuses on key fiber-based techniques to suppress SBS. These techniques take advantages of the properties of optical fibers. We present how these properties (electric modes, acoustic modes, and material properties)

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Dorobantu, Dorel, Alin Jderu, Marius Enachescu, and Dominik Ziegler. "Fabrication of Optical Fibers with Multiple Coatings for Swelling-Based Chemical Sensing." Micromachines 12, no. 8 (2021): 941. http://dx.doi.org/10.3390/mi12080941.

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We discuss distributed chemical sensing based on the swelling of coatings of optical fibers. Volume changes in the coating induce strain in the fiber’s glass core, provoking a local change in the refractive index which is detectable by distributed fiber optical sensing techniques. We describe methods to realize different coatings on a single fiber. Simultaneous detection of swelling processes all along the fiber opens the possibility to interrogate thousands of differently functionalized sections on a single fiber. Principal component analysis is used to enable sensors for environmental monito

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Borzycki, Krzysztof. "Influence of temperature and aging on polarization mode dispersion of tight-buffered optical fibers and cables." Journal of Telecommunications and Information Technology, no. 3 (September 30, 2005): 96–104. http://dx.doi.org/10.26636/jtit.2005.3.319.

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This paper presents results of laboratory tests investigating influence of temperature on polarization mode dispersion (PMD) in variety of single mode optical fibers and cables. Research was focused primarily on tight-buffered fibers, where most pronounced effects resulting from buffer shrinkage or expansion were expected. The goal was to verify performance of optical fiber cable exposed to extreme temperatures and to compare behavior of different cables. Very strong temperature dependence of PMD was detected in standard single mode fibers with 0.9 mm tight buffer, commonly used in indoor cabl

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Savović, Svetislav, Alexandar Djordjevich, Isidora Savović, and Rui Min. "Mode Coupling and Steady-State Distribution in Multimode Step-Index Organic Glass-Clad PMMA Fibers." Photonics 9, no. 5 (2022): 297. http://dx.doi.org/10.3390/photonics9050297.

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Mode coupling and power diffusion in multimode step-index (SI) organic glass-clad (OGC) PMMA fiber is examined in this study using the power flow equation (PFE). Using our previously proposed approach we determine the coupling coefficient D for this fiber. When compared to standard multimode SI PMMA fibers, the multimode SI OGC PMMA fiber has similar mode coupling strength. As a result, the fiber length required to achieve the steady-state distribution (SSD) in SI OGC PMMA fibers is similar to that required in standard SI PMMA fibers. We have confirmed that optical fibers with a plastic core s

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Rahman, Saifur, Farman Ali, Fazal Muhammad, et al. "Analyzing Distributed Vibrating Sensing Technologies in Optical Meshes." Micromachines 13, no. 1 (2022): 85. http://dx.doi.org/10.3390/mi13010085.

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Hundreds of kilometers of optical fibers are installed for optical meshes (OMs) to transmit data over long distances. The visualization of these deployed optical fibers is a highlighted issue because the conventional procedure can only measure the optical losses. Thus, this paper presents distributed vibration sensing (DVS) estimation mechanisms to visualize the optical fiber behavior installed for OMs which is not possible by conventional measurements. The proposed technique will detect the power of light inside the optical fiber, as well as different physical parameters such as the phase of

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Chen, Zeyao. "Daylighting Performance of Sunlight Transmission and Concentration via Plastic Optical Fibers." Journal of Physics: Conference Series 2386, no. 1 (2022): 012084. http://dx.doi.org/10.1088/1742-6596/2386/1/012084.

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Abstract The energy-saving technology of this thing is thriving. One of promising technology is the daylighting system via optical plastic fibers. It has many advantages, and its characteristics need further research. This paper analyses the transmission characteristics, attenuation rate, and incident angle of the optical fiber. The test data shows that the spectrum, color rendering index are good, and the energy efficiency is high. This shows that plastic optical fibres have excellent development prospects for daylighting.

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Gao, Binhao, Fang Tan, Dexiao Chen, et al. "Design and Study of Low Loss, High Birefringence Quasi-Symmetric Hollow-Core Anti-Resonant Fiber." Photonics 11, no. 7 (2024): 675. http://dx.doi.org/10.3390/photonics11070675.

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Low-loss, high-birefringence, bend-resistant hollow-core anti-resonant fibers for infrared wavelengths have important applications in the fields of precision interferometric sensing, laser systems, and optical communications. In this paper, an eight-tube cladding quasi-symmetric hollow-core anti-resonant fiber is proposed, and two other anti-resonant fibers are designed based on this fiber structure. The finite element analysis method is used to numerically analyze the limiting loss, birefringence coefficient, bending resistance, and other properties of the three optical fibers after the optim

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Chien, Hsi Hsin, Kung Jeng Ma, Yun Peng Yeh, and Choung Lii Chao. "Microstructure and Mechanical Properties of Air Core Polymer Photonic Crystal Fibers." Advanced Materials Research 233-235 (May 2011): 3000–3004. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.3000.

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Polymer based photonic crystal fibers with low cost manufacturability, and the mechanical and chemical flexibility offer key advantages over traditional silica based photonic crystal fibers. PMMA photonic crystal fiber was fabricated by stacking an array of PMMA capillaries to form a preform, and followed by fusing and drawing into fiber with a draw tower. The air hole diameter and fraction of photonic crystal fiber can be manipulated by the thickness of PMMA capillaries and drawing temperature. The measurement of mechanical properties was performed by universal testing machine. The air core g

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Tosi, Daniele, Carlo Molardi, Wilfried Blanc, Tiago Paixão, Paulo Antunes, and Carlos Marques. "Performance Analysis of Scattering-Level Multiplexing (SLMux) in Distributed Fiber-Optic Backscatter Reflectometry Physical Sensors." Sensors 20, no. 9 (2020): 2595. http://dx.doi.org/10.3390/s20092595.

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Optical backscatter reflectometry (OBR) is a method for the interrogation of Rayleigh scattering occurring in each section of an optical fiber, resulting in a single-fiber-distributed sensor with sub-millimeter spatial resolution. The use of high-scattering fibers, doped with MgO-based nanoparticles in the core section, provides a scattering increase which can overcome 40 dB. Using a configuration-labeled Scattering-Level Multiplexing (SLMux), we can arrange a network of high-scattering fibers to perform a simultaneous scan of multiple fiber sections, therefore extending the OBR method from a

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Jin, Wen Cheng, Juan Wan, Qing Rong Ding, and Chang Dong Zhou. "Smart Structure Based on Continuous Optical Fiber Sensing Technique (Review)." Applied Mechanics and Materials 71-78 (July 2011): 4138–41. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.4138.

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Continuous optical fiber sensing technique has the advantages of continuous measurement, corrosion preventing, anti-electromagnetic interference and high precision. This paper integrates continuous optical fiber into smart structure system. It combines the advantages of continuous optical fibers with self-adapting function of smart structures. It may have wide uses in engineering. But it is developing. It has some key technologies to be solved, such as the manufacture and embedment technique of special optical fibers, optimized arrangements of fibers, smart identification of the signal, analys

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Monteiro, Catarina S., Maria Raposo, Paulo A. Ribeiro, Susana O. Silva, and Orlando Frazão. "Tuning of Fiber Optic Surface Reflectivity through Graphene Oxide-Based Layer-by-Layer Film Coatings." Photonics 7, no. 1 (2020): 11. http://dx.doi.org/10.3390/photonics7010011.

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The use of graphene oxide-based coatings on optical fibers are investigated, aiming to tune the reflectivity of optical fiber surfaces for use in precision sensing devices. Graphene oxide (GO) layers are successfully deposited onto optical fiber ends, either in cleaved or hollow microspheres, by mounting combined bilayers of polyethylenimine (PEI) and GO layers using the Layer-by-Layer (LbL) technique. The reflectivity of optical fibers coated with graphene oxide layers is investigated for the telecom region allowing to both monitor layer growth kinetics and cavity characterization. Tunable re

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Borzycki, Krzysztof. "Testing of highly doped and photonic crystal optical fibers." Journal of Telecommunications and Information Technology, no. 3 (June 26, 2023): 65–73. http://dx.doi.org/10.26636/jtit.2008.3.889.

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The paper presents optical measurements – spectral loss, OTDR and PMD, temperature cycling and mechanical tests – bending, twist and crush, performed on Yb-doped single mode fibers and small-core photonic crystal fibers (PCF). Several issues related specifically to characterization of such specialty fibers, like measurement errors and artifacts as well as coupling of test instruments to samples are presented. Of particular importance is reliable and low-loss fusion splicing of specialty fibers to standard single mode fibers (SMF), as most commercially available fiber test instruments are fitte

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Stajanca, Pavol, Konstantin Hicke, and Katerina Krebber. "Distributed Fiberoptic Sensor for Simultaneous Humidity and Temperature Monitoring Based on Polyimide-Coated Optical Fibers." Sensors 19, no. 23 (2019): 5279. http://dx.doi.org/10.3390/s19235279.

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Along temperature, humidity is one of the principal environmental factors that plays an important role in various application areas. Presented work investigates possibility of distributed fiberoptic humidity monitoring based on humidity-induced strain measurement in polyimide (PI)-coated optical fibers. Characterization of relative humidity (RH) and temperature response of four different commercial PI- and one acrylate-coated fiber was performed using optical backscattering reflectometry (OBR). The study addresses issues of temperature-humidity cross-sensitivity, fiber response stability, repe

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