Results 241 to 250 of about 14,380 (286)
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Interrogation of fibre Bragg gratings with a tilted fibre Bragg grating
Measurement Science and Technology, 2004A new and efficient interrogation scheme suitable for monitoring the Bragg wavelengths of multiplexed fibre Bragg gratings is presented. The heart of the technique consists of a tilted and chirped fibre Bragg grating placed in front of a photodetector linear array.
C Jáuregui, J M López-Higuera
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Analysis and applications of fiber Bragg gratings
2018 26th Signal Processing and Communications Applications Conference (SIU), 2018In this paper, one of the basic elements in optical communications systems, fiber Bragg gratings, were investigated and data transmission in optical communications systems using fiber Bragg gratings was analyzed with the help of the OptiSystem 7.0 simulation program.
Alkocak, Suleyman +1 more
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Fabrication of Bragg Grating Structures in Silicon
Physica Scripta, 2002A fabrication process to realise very short period grating structures in silicon has been developed. The period of a first order Bragg grating operating at a wavelength of 1.55 μm is 230 nm. The grating structures have been directly written to PMMA resist using an electron beam pattern generator.
Aalto, Timo +7 more
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Review of Scientific Instruments, 1997
Since the discovery of photosensitivity in optical fibers there has been great interest in the fabrication of Bragg gratings within the core of a fiber. The ability to inscribe intracore Bragg gratings in these photosensitive fibers has revolutionized the field of telecommunications and optical fiber based sensor technology.
Othonos, Andreas S., Othonos, Andreas S.
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Since the discovery of photosensitivity in optical fibers there has been great interest in the fabrication of Bragg gratings within the core of a fiber. The ability to inscribe intracore Bragg gratings in these photosensitive fibers has revolutionized the field of telecommunications and optical fiber based sensor technology.
Othonos, Andreas S., Othonos, Andreas S.
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Journal of the Optical Society of America B, 1999
Bragg diffraction of a read beam is studied theoretically when the refractive-index grating is placed inside a Fabry–Perot cavity. Diffraction efficiency, angular selectivity, and signal-to-noise ratio are largely enhanced compared with those for the bare Bragg grating, which may permit the use of low-efficiency or short-length materials as well.
L. Menez +3 more
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Bragg diffraction of a read beam is studied theoretically when the refractive-index grating is placed inside a Fabry–Perot cavity. Diffraction efficiency, angular selectivity, and signal-to-noise ratio are largely enhanced compared with those for the bare Bragg grating, which may permit the use of low-efficiency or short-length materials as well.
L. Menez +3 more
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Comparative analysis of silica fiber Bragg grating and chalcogenide fiber Bragg grating
Materials Today: Proceedings, 2021Abstract Sensing performance of silica fiber Bragg grating (FBG) and chalcogenide FBG are compared in presence of apodization functions. The Bessel and Gaussian apodization functions are chosen in this analysis. These fibers are compared on the basis of their sensitivity, detection accuracy, quality parameter and sidelobe suppression ability ...
Souryadipta Maiti, Vivek Singh
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2012
Fiber optics has emerged as a promising sensing technology over the past two decades. Fiber optic sensors (FOS) have generated great interest due to their small size, immunity to electro-magnetic interference and radio frequency (RF) interference, inherent safety, and accuracy.
R. Suresh, S. C. Tjin, J. Hao
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Fiber optics has emerged as a promising sensing technology over the past two decades. Fiber optic sensors (FOS) have generated great interest due to their small size, immunity to electro-magnetic interference and radio frequency (RF) interference, inherent safety, and accuracy.
R. Suresh, S. C. Tjin, J. Hao
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Ultrashort bragg soliton in a fiber bragg grating
Optics Communications, 2002The propagation of a nonlinear ultrashort pulse in a photonic bandgap structure is investigated by using the finite-difference time-domain method. The simulation results show that an ultrashort pulse near the bandgap edge can propagate through a nonlinear fiber Bragg grating, even if the broadband spectrum of this ultrashort pulse overlaps the whole ...
Sien Chi, Boren Luo, Hong-Yih Tseng
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Compound solitons in fiber Bragg grating
Science in China Series F: Information Sciences, 2008zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiaolu Li 0001, Yuesong Jiang
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