First-order fiber Bragg grating inscription in indium fluoride fiber using a UV/Vis femtosecond laser and two-beam interferometry

2021 ◽  
Vol 46 (8) ◽  
pp. 1816
Author(s):  
Ismael Chiamenti ◽  
Tino Elsmann ◽  
Aaron Reupert ◽  
Oguzhan Kara ◽  
Martin Becker ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
First Order ◽  
Fluoride Fiber

First order fiber Bragg grating inscription with femtosecond laser and reflection wavelengths from visible to infrared

2014 ◽  
Author(s):  
Martin Becker ◽  
Tino Elsmann ◽  
Anka Schwuchow ◽  
Manfred Rothhardt ◽  
Sebastian Dochow ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
First Order

A femtosecond laser inscribed fiber Bragg grating as a refractive index and temperature sensor based on side-polished method

2020 ◽  
Vol 34 (27) ◽  
pp. 2050296
Author(s):  
Wei He ◽  
Lianqing Zhu
Keyword(s):  
Refractive Index ◽  
Femtosecond Laser ◽  
Fiber Bragg Grating ◽  
Pulsed Laser ◽  
Grating Period ◽  
Bragg Grating ◽  
Fiber Grating ◽  
Nacl Solution ◽  
First Order ◽  
Grating Region

A fiber Bragg grating (FBG), inscribed directly by a femtosecond laser and based on the side-polished technique, was proposed and experimentally demonstrated for refractive and temperature sensing. The first-order FBG was inscribed by a 800 nm femtosecond pulsed laser, using the point-by-point method, in a fiber core with a length of 3 mm; the grating period was 537 nm. The fiber grating region was subsequently polished for 5 h and a light leak window was polished through the fiber cladding, with a length and depth of 20 mm and 37.5 [Formula: see text]m, respectively. This changed the evanescent field around the grating area to realize refractive index (RI) sensing. In the experiment, the NaCl solution RI sensitivity of the proposed fiber sensor was 854.2 nm/RIU and the linearities were 0.9989. For the temperature measurement, the sensitivity was 11.66 pm/[Formula: see text]C and the linearities were 0.9854, between 50–450[Formula: see text]C.

Phase-shifted fiber Bragg grating inscription by fusion splicing technique and femtosecond laser

2016 ◽  
Vol 86 ◽  
pp. 236-241 ◽  
Author(s):  
Yajun Jiang ◽  
Yuan Yuan ◽  
Jian Xu ◽  
Dexing Yang ◽  
Dong Li ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Grating ◽  
Bragg Grating

scholarly journals Femtosecond-Laser-Assisted Fabrication of Radiation-Resistant Fiber Bragg Grating Sensors

2022 ◽  
Vol 12 (2) ◽  
pp. 886
Author(s):  
Hun-Kook Choi ◽  
Young-Jun Jung ◽  
Bong-Ahn Yu ◽  
Jae-Hee Sung ◽  
Ik-Bu Sohn ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Grating ◽  
Optical Fibers ◽  
Coming Out ◽  
Single Mode ◽  
Femtosecond Laser Irradiation ◽  
Bragg Grating ◽  
Wavelength Shift ◽  
Radiation Resistant ◽  
Fbg Sensors

This paper demonstrates the fabrication of radiation-resistant fiber Bragg grating (FBG) sensors using infrared femtosecond laser irradiation. FBG sensors were written inside acrylate-coated fluorine-doped single-mode specialty optical fibers. We detected the Bragg resonance at 1542 nm. By controlling the irradiation conditions, we improved the signal strength coming out from the FBG sensors. A significant reduction in the Bragg wavelength shift was detected in the fabricated FBG sensors for a radiation dose up to 105 gray, indicating excellent radiation resistance capabilities. We also characterized the temperature sensitivity of the radiation-resistant FBG sensors and detected outstanding performance.

Monitoring of single-mode fiber laser heating using Rayleigh scattering and first order fs-PbP fiber Bragg grating

2017 ◽  
Author(s):  
Rudy Desmarchelier ◽  
Romain Cotillard ◽  
Nicolas Roussel ◽  
Steven Armiroli ◽  
Guillaume Laffont
Keyword(s):  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Laser Heating ◽  
Rayleigh Scattering ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Bragg Grating ◽  
First Order

Ultrashort fiber Bragg grating written by femtosecond laser and its sensing characteristics

2017 ◽  
Vol 10 (4) ◽  
pp. 449-454 ◽  
Author(s):  
敬世美 JING Shi-mei ◽  
张轩宇 ZHANG Xuan-yu ◽  
梁居发 LIANG Ju-fa ◽  
陈超 CHEN Chao ◽  
郑钟铭 ZHENG Zhong-ming ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Sensing Characteristics
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