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Journal articles on the topic 'Lasers à fibres'

Author: Grafiati

Published: 25 January 2025

Last updated: 31 July 2025

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1

Hennings, T., D. Hennings, and C. Lindsay. "Thrombus formation using endovenous lasers: an in vitro experiment." Phlebology: The Journal of Venous Disease 29, no. 3 (2013): 171–78. http://dx.doi.org/10.1177/0268355512473921.

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Objectives: The purpose of these experiments was to simulate thrombus formation during endovenous laser closure by measuring coagulum formation of in vitro laser exposures in porcine blood and investigate the role of procedures and equipment in thrombus formation. Methods: Continuous wave 810, 940, 980, 1310 and 1470 nm lasers and microsecond pulsed wave 1064 nm Nd:YAG (neodymium-doped yttrium aluminium garnet), 1320 nm Nd:YAG and 2100 nm THC:YAG (thulium holmium chromium-doped yttrium aluminium garnet) lasers were tested with standard fibres with diameters of 365, 550 and 600 μm as well as tw

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2

Popov, S. M., O. V. Butov, A. O. Kolosovskii, et al. "Optical fibres with an inscribed fibre Bragg grating array for sensor systems and random lasers." Quantum Electronics 51, no. 12 (2021): 1101–6. http://dx.doi.org/10.1070/qel17659.

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Abstract We report the latest results on inscribing extended fibre Bragg grating (FBG) arrays upon fibre drawing, obtained at the Kotelnikov Institute of Radioengineering and Electronics of RAS. The properties of these structures are considered, and examples of their application in sensor systems of microwave dense wavelength multiplexing and as a basis for designing single-frequency fibre lasers are considered. The optical and laser characteristics of FBG arrays, inscribed (using 248-nm UV laser radiation) both in standard single-mode telecommunication fibres of the SMF-28 type and in erbium-

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3

He, Wentao, and Zhiwei Men. "Analysis on Transmission Characteristics of Stimulated Raman Scattering Based on the Multi-Sensor Signal Enhancement Technique." Scientific Programming 2022 (May 11, 2022): 1–9. http://dx.doi.org/10.1155/2022/5726718.

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In recent 20 years, fibre laser system has been developed rapidly and widely used for its high quality, high efficiency, high robustness, and compactness. However, there are still many factors (such as non-linear effect, thermal effect, and mode instability) that limit the further increase of power of fibre laser system. Stimulated Raman scattering (SRS) is one of the main limitations in the transmission process of fibre lasers. It not only reduces the output efficiency of fibre lasers, but also increases the damage risk of reverse Stokes light to the system. Recent studies have shown that SRS

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4

Provino, Laurent, Achille Monteville, David Landais, et al. "Les fibres microstructurées : 20 ans d’existence et un vaste éventail d’applications." Photoniques, no. 99 (November 2019): 40–44. http://dx.doi.org/10.1051/photon/20199940.

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Les fibres optiques microstructurées, également appelées fibres à trous ou fibres optiques à cristal photonique sont un type récent de guides de lumières originaux et performants apparues dans le milieu des années 1990. Elles se sont depuis imposées comme une technologie incontournable de la photonique moderne. L’originalité première de ce genre de fibre a été de permettre le guidage de la lumière dans un matériau unique grâce à leur structuration périodique. Après une vingtaine d’années de recherche, la gamme possible de structures de ces fibres optiques s’est grandement étoffée, donnant lieu

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5

McCaffer, C. J., L. Pabla, and C. Watson. "Curved adjustable fibre-optic diode laser in microscopic cholesteatoma surgery: description of use and review of the relevant literature." Journal of Laryngology & Otology 132, no. 4 (2018): 360–63. http://dx.doi.org/10.1017/s0022215118000117.

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AbstractObjective:The use of lasers in cholesteatoma surgery is common and well accepted. The most commonly used laser fibres are straight and non-adjustable; these have several limitations. This paper describes the use of an alternative laser fibre.Method:This ‘How I Do It’ paper describes and illustrates the use of an alternative curved adjustable fibre-optic diode laser in microscopic cholesteatoma surgery.Results:The curved, adjustable laser fibre allows accurate and atraumatic disease removal when the use of a straight laser fibre may be less effective or accurate. It reduces potential da

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6

Canning, John, Nathaniel Groothoff, Kevin Cook, et al. "Gratings in Structured Optical Fibres." Laser Chemistry 2008 (December 1, 2008): 1–19. http://dx.doi.org/10.1155/2008/239417.

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Grating writing in structured optical fibres and their properties and applications are reviewed. To date, most gratings have been written in a straightforward manner into structured fibres containing a photosensitive germanosilicate step-index core. However, gratings have also been written directly into single material, structured silica fibres and into air-clad cores using two and higher-photon processes with both UV and near IR pulsed (nanosecond-femtosecond) light. Given the intrinsic-added functionality possible within a structured optical fibre, structured fibre gratings offer further cap

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7

Dr, Maj Summerdeep Kaur, Lt Col Sonali Sharma Dr, and Maj Pankaj Awasthi Dr. "CLINICAL EVALUATION OF EFFECTS OF LOW-LEVEL LASERS ON PAIN DURING CAVITY PREPARATION." International Journal of Research - Granthaalayah 6, no. 10 (2018): 81–86. https://doi.org/10.5281/zenodo.1475397.

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Aim: To study the effects of low level laser on pain during cavity preparation. Background: Laser irradiation stabilizes the nerve membrane through an increase in adenosine triphosphate (ATP) production and enhanced redox system of the cell. Dental pulp is innervated by non- myelinated C fibres. Laser irradiation reduces the conduction of Ad and C fibres (small diameter fibres), both of which transmit nociceptive pain. The stabilization of the nerve membrane increases neural latency and decreases pain transmission. This study explores whether preirradiation with laser reduces pain perception d

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8

Ivanenko, A. V., B. N. Nyushkov, and S. V. Smirnov. "Generation of high-energy single pulses and pulse clusters in ytterbium fibre lasers with quasi-synchronous modulation of the pump power." Quantum Electronics 51, no. 12 (2021): 1061–67. http://dx.doi.org/10.1070/qel17653.

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Abstract Additional capabilities of the method of quasi-synchronous pump power modulation developed by the authors for nanosecond high-energy pulsed oscillation of fibre lasers with a long-lived (about 1 ms) upper laser level are investigated. Using an Yb fibre laser as an example, it is shown that quasi-synchronous pump power modulation makes it possible to generate not only a periodic sequence of single nanosecond pulses, but also regular pulse clusters with a controlled number of nanosecond subpulses that make up a cluster. In addition, the feasibility of scaling the energy of laser pulses

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9

Dianov, Evgenii M., Igor' A. Bufetov, V. M. Mashinsky, et al. "Raman fibre lasers based on heavily GeO2-doped fibres." Quantum Electronics 35, no. 5 (2005): 435–41. http://dx.doi.org/10.1070/qe2005v035n05abeh003415.

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10

Gambling, W. Alex. "Optical fibres, lasers, and amplifiers." Endeavour 16, no. 1 (1992): 17–22. http://dx.doi.org/10.1016/0160-9327(92)90112-3.

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11

Leconte, Baptiste, Laurent Bigot, Philippe Roy, et al. "Lasers de forte puissance : vers l’avènement de fibres optiques à aire effective extrême." Photoniques, no. 99 (November 2019): 23–27. http://dx.doi.org/10.1051/photon/20199923.

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Les systèmes lasers fibrés sont au coeur de nombreuses recherches académiques et constituent un marché annuel mondial dépassant le milliard d’euros. L’augmentation de la puissance en sortie de ces dispositifs a été rendue possible grâce à une innovation permanente portant sur la géométrie de fibres, les matériaux qui les constituent et les méthodes de synthèse associées. Après un bref rappel historique, nous rappelons quelques éléments de contexte et présentons quelques avancées récentes en matière de fibres à très grandes aires effectives.

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12

Kaur, Maj Summerdeep, Lt Col Sonali Sharma, and Maj Pankaj Awasthi. "CLINICAL EVALUATION OF EFFECTS OF LOW-LEVEL LASERS ON PAIN DURING CAVITY PREPARATION." International Journal of Research -GRANTHAALAYAH 6, no. 10 (2018): 81–86. http://dx.doi.org/10.29121/granthaalayah.v6.i10.2018.1164.

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Aim: To study the effects of low level laser on pain during cavity preparation. Background: Laser irradiation stabilizes the nerve membrane through an increase in adenosine triphosphate (ATP) production and enhanced redox system of the cell. Dental pulp is innervated by non- myelinated C fibres. Laser irradiation reduces the conduction of Ad and C fibres (small diameter fibres), both of which transmit nociceptive pain. The stabilization of the nerve membrane increases neural latency and decreases pain transmission. This study explores whether pre-irradiation with laser reduces pain perce

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13

Krylov, A. A., A. V. Gladyshev, A. K. Senatorov та ін. "1.56-to-2.84 μm SRS conversion of chirped pulses of a high-power erbium fibre laser in a methane-filled hollow-core revolver fibre". Quantum Electronics 52, № 3 (2022): 274–77. http://dx.doi.org/10.1070/qel18003.

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Abstract Single-cascade 1.56-to-2.84 μm SRS conversion is demonstrated in a hollow-core revolver fibre filled with methane at a pressure of 25 atm under pumping by positively chirped pulses of a high-power erbium-doped all-fibre laser. At a maximum pump pulse energy of 34 μJ (average power 3.74 W) and a pump pulse duration of about 260 ps, ultrashort pulses (USPs) with a duration of 110 ps and an energy of 1.33 μJ (average power 133 mW) are achieved at the centre wavelength of 2.84 μm. The gas fibre Raman lasers based on hollow-core fibres with pumping by high-power fibre sources are promising

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14

Barinaga, Marcia. "Advances in superconducting fibres using lasers." Nature 333, no. 6170 (1988): 200. http://dx.doi.org/10.1038/333200b0.

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15

Marszalec, Elzbieta, and Janusz Marszalec. "Lasers and optical fibres in robotics." Industrial Robot: An International Journal 17, no. 3 (1990): 149–53. http://dx.doi.org/10.1108/eb005100.

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16

Macfarlane, Roger. "Fluoride fibres yield blue-green lasers." Physics World 4, no. 10 (1991): 18. http://dx.doi.org/10.1088/2058-7058/4/10/22.

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17

Beck, Th, N. Reng, and H. Weber. "Optical fibres for material processing lasers." Optics and Lasers in Engineering 34, no. 4-6 (2000): 255–72. http://dx.doi.org/10.1016/s0143-8166(00)00081-6.

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18

Mills, Tim N. "Lasers and optical fibres in medicine." Lasers in Medical Science 9, no. 3 (1994): 207. http://dx.doi.org/10.1007/bf02590225.

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19

Young, E., A. Mitchell-Innes, and M. Jindal. "Lasers in stapes surgery: a review." Journal of Laryngology & Otology 129, no. 7 (2015): 627–33. http://dx.doi.org/10.1017/s0022215115001280.

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AbstractBackground:Lasers in stapes surgery are used to divide the anterior and posterior crus of the stapes, divide the stapedius tendon and perforate the footplate. The ideal laser should not penetrate deeply into the perilymph (thereby increasing its temperature). It should be conducted through optical fibres, allowing easy manipulation, and should have good water absorption, equating to high bone ablation efficiency.Objectives:This review discusses the various different lasers used in stapes surgery with regard to their properties and suitability for this type of surgery. In particular, th

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20

Kumar, Hardik, Tanya Jain, Mritunjay Sharma, and Kamal Kishor. "Neural network approach for faster optical properties predictions for different PCF designs." Journal of Physics: Conference Series 2070, no. 1 (2021): 012001. http://dx.doi.org/10.1088/1742-6596/2070/1/012001.

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Abstract Photonic Crystal Fibres (PCFs) are emerging as an alternative to standard fibres for applications in many disciplines like fibre lasers & amplifiers, imaging, spectroscopy and telecommunications. They have superior light guiding properties compared to ordinary Optical Fibres (OFs). This paper illustrates the potential of neural networks to efficiently and accurately compute the optical properties of PCFs including solid-core, hollow-core and multi-core designs. The proposed method takes a range of design parameters and wavelengths as input to predict PCF optical properties like ef

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21

Rass, K. "Current clinical evidence on endovenous laser ablation (EVLA) from randomised trials." Phlebologie 45, no. 04 (2016): 201–6. http://dx.doi.org/10.12687/phleb2317-4-2016.

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SummaryBackground Endovenous laser ablation (EVLA) is globally counted among the most frequently administered methods to treat saphenous vein incompetence. Technical development proceeded in three particular steps: EVLA #1 – Diode lasers linearly emitting wavelengths from 810 to 980 nm through optical bare fibres; EVLA #2 – Diode or Nd:YAG lasers emitting wavelengths from 1064 to 1500 nm; EVLA #3 – Modified optical fibres warranting an optimised emission geometry by centralisation of the fibre tip (Tulip-fibre, Jacket-tip) or radial emission of the laser beam. Due to the number of different EV

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22

Roy, Philippe, Philippe Leproux, Sébastien Février, et al. "Photonic crystal fibres for lasers and amplifiers." Comptes Rendus Physique 7, no. 2 (2006): 224–32. http://dx.doi.org/10.1016/j.crhy.2006.01.018.

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23

Żmojda, Jacek, Piotr Miluski, Marcin Kochanowicz, et al. "Luminescent properties of active optical fibers." Photonics Letters of Poland 11, no. 2 (2019): 50. http://dx.doi.org/10.4302/plp.v11i2.908.

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Luminescent optical fibres are one of the most important photonics elements as they allow to construct high power fibre lasers and different unique optical sources in the broad range from UV to IR. The most important requirements cover efficient luminescence core materials and easily pumped optical fibre constructions. Depends on the applications the variety of optical fibres have been proposed based on glasses and polymers. In the paper some recent constructions developed in Bialystok Photonics Group have been shown. Full Text: PDF ReferencesA. Zajac, D. Dorosz, M. Kochanowicz, M. Skórczakows

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24

Hussey, C. D. "Optics and Lasers: including Fibres and Integrated Optics." IEE Proceedings J Optoelectronics 132, no. 3 (1985): 199. http://dx.doi.org/10.1049/ip-j.1985.0042.

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25

Fenelon, Thomas, Mahmoud M. Bakr, Laurence J. Walsh, and Roy George. "Effects of Lasers and Their Delivery Characteristics on Machined and Micro-Roughened Titanium Dental Implant Surfaces." Bioengineering 7, no. 3 (2020): 93. http://dx.doi.org/10.3390/bioengineering7030093.

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The aim of the study was to investigate the effects of neodymium: yttrium aluminium garnet (Nd:YAG) (1064 nm) and erbium: yttrium aluminium garnet (Er:YAG) (2940 nm) laser energy on titanium when delivered with conventional optics (focusing handpieces or plain ended optical fibres) or with a conical tip. Machined and micro-roughened implant discs were subjected to laser irradiation under a variety of energy settings either dry (without water) or wet (with water). Samples were scanned using a 3D non-contact laser profilometer and analysed for surface roughness, volume of peaks and the maximum d

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26

Xue-Ming, Liu, Zhao Wei, Zhang Tong-Yi, et al. "Multi-Wavelength Erbium-Doped Fibre Lasers on Assistance of High-Nonlinear Photonic-Crystal Fibres." Chinese Physics Letters 23, no. 7 (2006): 1787–89. http://dx.doi.org/10.1088/0256-307x/23/7/036.

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27

Grukh, Dmitrii A., Andrei S. Kurkov, Vladimir M. Paramonov, and Evgenii M. Dianov. "Effect of heating on the optical properties of Yb3+-doped fibres and fibre lasers." Quantum Electronics 34, no. 6 (2004): 579–82. http://dx.doi.org/10.1070/qe2004v034n06abeh002777.

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28

Zhao, Yucheng, and Stuart D. Jackson. "Highly efficient first order Raman fibre lasers using very short Ge-doped silica fibres." Optics Communications 253, no. 1-3 (2005): 172–76. http://dx.doi.org/10.1016/j.optcom.2005.04.063.

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29

Beugnot, Jean-Charles, Philippe Djemia, and Jérémie Margueritat. "Centenaire de la découverte de l’effet Brillouin." Photoniques, no. 114 (2022): 26–29. http://dx.doi.org/10.1051/photon/202111426.

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En 1922, Léon Brillouin publie seul et en français, dans les comptes rendus de physique un article sur la diffusion de la lumière par des ondes acoustiques d’origine thermique. Il démontre que ces ondes acoustiques induisent un décalage en fréquence de la lumière diffusée. L'invention des lasers a rendu cette diffusion très efficace et permis de nombreux développements technologiques et industriels en spectroscopie des matériaux, microscopie médicale, lasers et capteurs distribués à fibres optiques.

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30

Kasik, Ivan, Vlastimil Matejec, Jioí Kanka, and Pavel Honzatko. "Properties and fabrication of ytterbium-erbium co-doped silica fibres for high-power fibre lasers." Pure and Applied Optics: Journal of the European Optical Society Part A 7, no. 3 (1998): 457–65. http://dx.doi.org/10.1088/0963-9659/7/3/007.

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31

Leaver, K. D., and G. Pagiatakis. "Fabrication tolerances in fibre directional couplers designed to maximise coupling between fibres and diode lasers." IEE Proceedings - Optoelectronics 141, no. 1 (1994): 69–74. http://dx.doi.org/10.1049/ip-opt:19949848.

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32

Bufetov, Igor' A., M. M. Bubnov, Mikhail A. Mel'kumov, et al. "Yb-, Er—Yb-, and Nd-doped fibre lasers based on multi-element first cladding fibres." Quantum Electronics 35, no. 4 (2005): 328–34. http://dx.doi.org/10.1070/qe2005v035n04abeh002926.

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33

Blaser, Dunia, Pascal Hänzi, Sönke Pilz, Alexander Heidt, and Valerio Romano. "Multimode Ytterbium–Aluminosilicate Core Optical Fibre for Amplification and Laser Applications." Fibers 11, no. 11 (2023): 95. http://dx.doi.org/10.3390/fib11110095.

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Rare-earth-doped optical fibres are widely used in lasers and amplifiers. The incorporation of ytterbium and aluminium oxide in a high doping concentration has led to the fabrication of a multi-mode (MM) optical fibre. Within this research, the design, preparation and calculation for the production of a fibre with a targeted 45 μm core diameter are explored. By Energy Dispersive X-ray (EDX) analysis, the doping concentrations of the elements in the core have been measured as 60.4 at.% Al and 1 at.% Yb. Supporting micrographs are used for confirming the core/cladding ratio. Based on the atomic

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34

Somkuarnpanit, S., D. Su, F. Villarreal, et al. "Beam delivery characteristics of optical fibres for carbon monoxide lasers." Optics and Lasers in Engineering 23, no. 4 (1995): 221–31. http://dx.doi.org/10.1016/0143-8166(94)00042-9.

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35

Zhang, Naizhong, Suzana Turk, Claire Davis, Wing K. Chiu, Tommy Boilard, and Martin Bernier. "Fatigue Performance of Type I and Type II Fibre Bragg Gratings Fabricated by Femtosecond Laser Inscription through the Coating." Sensors 22, no. 22 (2022): 8812. http://dx.doi.org/10.3390/s22228812.

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Strain sensing technology using fibre Bragg grating (FBG) sensors is an attractive capability for aerospace structural health monitoring (SHM) and assessment because they offer resistance to harsh environments, low maintenance, and potential for high density and high strain sensing. The development of FBG inscription techniques through the fibre polymer coating using infrared (IR) lasers has overcome the mechanical weaknesses introduced by removal of the fibre coating, which is typically required for conventional UV laser inscription of FBGs. Type I and Type II femtosecond gratings are fabrica

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36

Georges, Thierry, Thierry Dupoux, Thierry Chartier, and Elisabeth Boéri. "La photonique : de la deeptech à la filière structurée." Photoniques, no. 124 (2024): 20–25. http://dx.doi.org/10.1051/photon/202412420.

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La photonique est omniprésente dans notre vie quotidienne : des fibres optiques jusqu’aux écrans haute résolution de nos téléphones, en passant par les lasers qui révolutionnent la médecine et l’industrie. Elle est le moteur de nombreuses avancées technologiques. La science de la lumière progresse et rassemble ses forces pour passer du statut de deep tech à celui d’une véritable filière.

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37

Foley, B. M., P. Melman, and K. T. Vo. "Technique for alignment of semiconductor lasers to bevelled single-mode fibres." Electronics Letters 26, no. 25 (1990): 2118. http://dx.doi.org/10.1049/el:19901363.

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38

Reng, N., and T. Beck. "Transmission properties of all-silica fibres for high-power Nd:YAG lasers." Optics & Laser Technology 25, no. 2 (1993): 117–24. http://dx.doi.org/10.1016/0030-3992(93)90106-p.

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39

Schnitzer, I., A. Katzir, U. Schiessl, W. J. Riedel, and M. Tacke. "Evanescent field IR spectroscopy using optical fibres and tunable diode lasers." Materials Science and Engineering: B 5, no. 2 (1990): 333–37. http://dx.doi.org/10.1016/0921-5107(90)90079-q.

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40

Taylor, R. S., K. E. Leopold, S. Mihailov, and R. K. Brimacombe. "Damage measurements of fused silica fibres using long optical pulse XeCl lasers." Optics Communications 63, no. 1 (1987): 26–31. http://dx.doi.org/10.1016/0030-4018(87)90216-1.

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41

Hopfe, V., R. Jäckel, and K. Schönfeld. "Laser based coating and modification of carbon fibres: application of industrial lasers to manufacturing of composite materials." Applied Surface Science 106 (October 1996): 60–66. http://dx.doi.org/10.1016/s0169-4332(96)00393-5.

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42

Xiang, Chao, Warren Jin, Osama Terra, et al. "3D integration enables ultralow-noise isolator-free lasers in silicon photonics." Nature 620, no. 7972 (2023): 78–85. http://dx.doi.org/10.1038/s41586-023-06251-w.

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AbstractPhotonic integrated circuits are widely used in applications such as telecommunications and data-centre interconnects1–5. However, in optical systems such as microwave synthesizers6, optical gyroscopes7 and atomic clocks8, photonic integrated circuits are still considered inferior solutions despite their advantages in size, weight, power consumption and cost. Such high-precision and highly coherent applications favour ultralow-noise laser sources to be integrated with other photonic components in a compact and robustly aligned format—that is, on a single chip—for photonic integrated ci

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43

Ghislotti, G., A. Ferrari, S. Balsamo, V. Spano, F. Trezzi, and S. Morasca. "Wavelength-locked 980 nm semiconductor lasers for bidirectional pumping of erbium-doped fibres." Electronics Letters 38, no. 24 (2002): 1541. http://dx.doi.org/10.1049/el:20021023.

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44

Lachish, U., A. Bornstein, S. Rotter, U. El-Hanany, and L. Boehm. "Determination of IR radiation attenuation in chalcogenide glass fibres by tunable diode lasers." Infrared Physics 26, no. 2 (1986): 97–99. http://dx.doi.org/10.1016/0020-0891(86)90028-x.

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45

Dvoirin, V. V., V. M. Mashinskii, O. I. Medvedkov, A. A. Umnikov, Aleksei N. Gur'yanov, and Evgenii M. Dianov. "Bismuth-doped telecommunication fibres for lasers and amplifiers in the 1400–1500-nm region." Quantum Electronics 39, no. 6 (2009): 583–84. http://dx.doi.org/10.1070/qe2009v039n06abeh014119.

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46

Schwander, T., B. Schwaderer, and H. Storm. "Coupling of lasers to single-mode fibres with high efficiency and low optical feedback." Electronics Letters 21, no. 7 (1985): 287. http://dx.doi.org/10.1049/el:19850206.

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47

Cardinal, Thierry, Matthieu Lancry, Lionel Canioni, Bertrand Poumellec, and Wilfried Blanc. "Fonctionnaliser le verre pour de nouvelles propriétés optiques." Reflets de la physique, no. 74 (December 2022): 70–75. http://dx.doi.org/10.1051/refdp/202274070.

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Si le verre possède de nombreux atouts, ses propriétés optiques sont parmi les plus remarquables. Sa transparence et son indice de réfraction ont longtemps été reliés exclusivement à sa composition globale. Cependant, la structuration des propriétés optiques en surface ou au coeur du verre, à l’échelle micro ou nanométrique, connait un engouement particulier ces dernières années. Nous nous intéressons dans cet article à la structuration multidimensionnelle des verres par des impulsions lasers ultracourtes ou par l’insertion de nanoparticules au sein de fibres optiques. Cette approche mène à de

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48

Barthelemy, A., and M. Shalaby. "Nonlinear power limits of compression by optical fibres of chirped pulses emitted by diode lasers." Electronics Letters 29, no. 6 (1993): 533. http://dx.doi.org/10.1049/el:19930356.

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49

Pinto, Ana M. R., and Manuel Lopez-Amo. "All-fiber lasers through photonic crystal fibers." Nanophotonics 2, no. 5-6 (2013): 355–68. http://dx.doi.org/10.1515/nanoph-2013-0026.

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AbstractA review on all-fiber lasers based on photonic crystal fibers is presented. Photonic crystal fibers present improved features beyond what conventional optical fibers can offer. Due to their geometric versatility, photonic crystal fibers can present special properties and abilities which can lead to enhanced lasing structures. A brief description of photonic crystal fibers and fiber laser’s properties is presented. All-fiber laser structures developed using photonic crystal fibers are described and divided in two groups, depending on the cavity topology: ring cavity fiber lasers and lin

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Hofmann, Marcel, Dirk Wenzel, Bernd Gulich, Heike Illing-Günther, and Daisy Nestler. "Development of Nonwoven Preforms Made of Pure Recycled Carbon Fibres (rCF) for Applications of Composite Materials." Key Engineering Materials 742 (July 2017): 555–61. http://dx.doi.org/10.4028/www.scientific.net/kem.742.555.

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For the development of an efficient and economic recycling process of carbon fibers (CF) still many technological challenges have to be mastered. One of them is the removal of all extraneous natural and synthetic fibres, e.g. polyester sewing threads. The objective of the research was to develop an in-line process for the removal of those extraneous fibres, which result from mechanical processes such as tearing. A promising approach for the removal of extraneous fibres from cut-off carbon-fibre material (CF) has been identified, getting recycled carbon fibres (rCF). For that purpose, the use o

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