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Mode Characteristics and Sensing Performance of Fiber Gratings
Journal of Harbin University of Science and Technology, 2022 Fiber gratings are special optical fibers with a periodic refractive index distribution when the refractive index of the fiber core is modulated. Both the angle and period of the gratings have an influence on the sensing properties of the fiber gratings.
ZHANG Jun-xi +3 more
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Ultrafast Laser Processing of Optical Fibers for Sensing Applications
Sensors, 2021 A review of recent progress in the use of infrared femtosecond lasers to fabricate optical fiber sensors that incorporate fiber Bragg gratings (FBG) and random fiber gratings (RFG) is presented.
Stephen J. Mihailov +10 more
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INSCRIPTION PROCESS RESEARCH AND OPTIMIZATION FOR SUPERIMPOSED FIBER BRAGG GRATINGS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2017 Subject of Research. The paper presents the study of inscription process distinctive features for superimposed fiber Bragg gratings. We analyzed spectral characteristics changes of superposition segregated gratings that appear during inscription of ...
Kirill A. Konnov +6 more
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Coupled-core fiber Bragg gratings for low-cost sensing
Scientific Reports, 2022 Sensors based on Bragg gratings inscribed in conventional single mode fibers are expensive due to the need of a sophisticated, but low-speed, interrogation system.
Jose A. Flores-Bravo +4 more
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Sensors, 2021 In this work, we reviewed the most important achievements of INESC TEC related to the fabrication of long-period fiber gratings using the electric arc technique.
Gaspar Rego +2 more
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Research of the Spectral Characteristics of Apodized Fiber Bragg Gratings [PDF]
ITM Web of Conferences, 2019 Fiber Bragg Gratings (FBG) are widely used in different areas of the state-of–the -art fiber optics. Every task imposes specified requirements to the FBG spectral characteristics, which are scheduled at the gratings manufacturing stage. Manufacturing and
Kalimoldayev Maksat +7 more
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Photonics, 2022 Phase-inserted fiber gratings (PI-FGs) refer to those gratings where there exist a number of the phase-shifts (spatial spacing) among different sections (or local periods) of the gratings themselves. All the PI-FGs developed to date can mainly be divided
Chengliang Zhu, Lei Wang, Hongpu Li
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Generation of optical signals carrying OAM based on vortex fiber-optic periodic structures
Физика волновых процессов и радиотехнические системы, 2020 In this article, author considers the process of generation of fiber modes carrying orbital angular momentum (vortex modes) using chiral fiber Bragg gratings; in this context, the formation of vortex modes is carried out by converting thefundamental mode
Azat R. Gizatulin
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Mechanically-Induced Long-Period Fiber Gratings Using Laminated Plates
Sensors, 2020 This work presents a formation method of mechanically-induced long-period fiber gratings using laminated plates. The mechanically-induced long-period fiber grating is temporarily inscribed by compressing the optical fiber between a flat plate and the ...
Ismael Torres-Gómez +2 more
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Femtosecond Laser Fabricated Apodized Fiber Bragg Gratings Based on Energy Regulation
Photonics, 2021 In this paper, an energy regulation method based on the combination of a half-wave plate (HWP) and a polarization beam splitter (PBS) is proposed for the fabrication of apodized fiber gratings, which can effectively improve the side lobe suppression ...
Qi Guo +7 more
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