Results 21 to 30 of about 651 (179)

Application of Cascaded TFBG for Wavelength-Shift-Based SRI Measurement with Reduced Polarization Cross-Sensitivity [PDF]

Sensors
The wavelength shift in TFBG cladding resonance is a practical parameter due to its independence from power fluctuations coming from the light source or fiber bends.
Damian Harasim, Piotr Kisała
doaj   +2 more sources

SENSITIVITY VARIATION RESEARCH OF TILTED FIBER BRAGG GRATING DURING CHEMICAL ETCHING [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research. The paper presents experimental results of the chemical etching duration impact on the tilted fiber Bragg grating transmission spectrum.
Diana O. Gagarinova, Semyon A. Plyastsov, Larisa L. Lesnykh, Andrey A. Dmitriev, Ianina D. Tokareva, Sofya D. Bochkova   +5 more
doaj   +1 more source

Study on a Plasmonic Tilted Fiber Grating-Based Biosensor for Calmodulin Detection

Biosensors, 2021
Tilted fiber Bragg grating, which has the advantages of both fiber Bragg grating and long-period fiber grating, has been widely studied for sensing in many fields, especially in the field of biochemistry.
Xiaoyong Chen, Jie Jiang, Nan Zhang, Wenwei Lin, Pin Xu, Jinghua Sun   +5 more
doaj   +1 more source

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, WANG Zhi-yuan, LIANG Tai-ming, LI Xin   +3 more
doaj   +1 more source

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, Aliya Kalizhanova, Ainur Kozbakova, Bakhyt Yeraliyeva   +3 more
doaj   +1 more source

Design and Manufacturing Optoelectronic Sensors for the Measurement of Refractive Index Changes under Unknown Polarization State

Sensors, 2021
This article proposes a new method for detecting slight refractive index changes under conditions of unknown polarization state. It is argued that an insignificant modification of the tilted fiber Bragg grating (TFBG) structure and selecting the ...
Damian Harasim, Piotr Kisała, Bakhyt Yeraliyeva, Janusz Mroczka   +3 more
doaj   +1 more source

Mitigation of stimulated Raman scattering in a high-power fiber master oscillator power amplifier laser based on a dual-structure fiber grating

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, Qingqing Kong, Yangning Guo, Jingwei Li, Chen Wu, Zhigang Han, Rihong Zhu, Hua Shen   +7 more
doaj   +1 more source

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, Cyril Hnatovsky, Nurmemet Abdukerim, Robert B. Walker, Ping Lu, Yanping Xu, Xiaoyi Bao, Huimin Ding, Manny De Silva, David Coulas, Dan Grobnic   +10 more
doaj   +1 more source

Physical foundations determining spectral characteristics measured in Bragg gratings subjected to bending [PDF]

Metrology and Measurement Systems, 2022
The article presents an analysis of the impact of bending optical fibers with tilted Bragg gratings on their spectral parameters. This article proves that it is possible to a choose TFBG cladding mode and the optical spectrum range related to it that ...
Piotr Kisała
doaj   +1 more source

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, Rodríguez Cobo, Luis||, Megret, Patrice, Caucheteur, Christophe, López Higuera, José Miguel||   +4 more
openaire   +2 more sources