Results 11 to 20 of about 495 (163)
Identification of cladding modes in SMF-28 fibers with TFBG structures [PDF]
Metrology and Measurement Systems, 2023 This article proposes an unequivocal method of labeling and numbering the cladding modes propagating in single-mode opticalwaveguides with tilted periodic structures.
Piotr Kisała +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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Interrogation of interferometric sensors with a tilted fiber Bragg grating [PDF]
Optics Express, 2004 This paper describes the interrogation of interferometer-based transducers with a technique that involves the use of a tilted fiber Bragg grating. The interrogation process will be analyzed both from the conceptual and experimental points of view. Simultaneous interrogation of multiplexed interferometric transducers is successfully checked using this ...
Jáuregui Misas, César +2 more
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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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High Power Laser Science and Engineering, 2023 With the increasing power of fiber lasers, single chirped and tilted fiber Bragg gratings (CTFBGs) cannot completely mitigate continuously enhanced system-excited stimulated Raman scattering (SRS).
Kerong Jiao +7 more
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Photonics, 2023 Multi-core fibers have been widely used for vector-bending sensing due to their off-axis distributed cores. In contrast to vector-bending sensors based on Bragg gratings, fiber Fabry–Perot (F–P) interferometers are more advantageous due to their ease of ...
Yanqing Zhang +6 more
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Experimental determination of the characteristics of a transmission spectrum of tilted fiber Bragg gratings [PDF]
Metrology and Measurement Systems, 2019 In this article, we study tilted fiber Bragg gratings (TFBGs) with tilt angles of 6◦ and 8◦, their transmission spectra, and spectral parameters that have a linear dependence on the refractive index of the environment.
Akmaral Tolegenova +4 more
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Thermal annealing of tilted fiber Bragg gratings [PDF]
SPIE Proceedings, 2016 We report a practical study of the thermal decay of cladding mode resonances in tilted fiber Bragg gratings, establishing an analogy with the “power law” evolution previously observed on uniform gratings. We examine how this process contributes to a great thermal stability, even improving it by means of a second cycle slightly increasing the annealing ...
González Vila, Álvaro +4 more
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Tilted fiber Bragg grating-based accelerometer [PDF]
SPIE Proceedings, 2009 A power-referenced fiber-optic accelerometer is proposed by using a weakly tilted fiber Bragg grating (TFBG) combined with a lateral-misaligned splice structure. The recoupling of lower-order cladding modes (ghost modes), excited by the TFBG, to the fiber core via a slightly lateral-offset slice is sensitive to vibration and can be unambiguously ...
Tuan Guo +4 more
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Wavelength tunable TFBG based microwave sensor using surface plasmon resonance
Egyptian Journal of Remote Sensing and Space Sciences, 2016 A noble idea is used to propose a wavelength tunable tilted Fiber Bragg Gratings based microwave sensor using surface plasmon resonance. The Bragg wavelength shifts linearly about 6 pm/°C, due to the temperature change.
Imran Khan, Md. Mostafizur Rahman
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