Study of radiation-induced spectral changes of femtosecond laser written FBG in metal and polyimide coated fiber

Alexandr V Dostovalov 1
, 
Alexey Wolf 1
, 
Victor A Simonov 1
, 
Mikhail V Korobeynikov 2
, 
Alexander Bryazgin 2
, 
Pavel F Kashaykin 3
, 
Sergey Yakushin 4
, 
Mihail Mikhailenko 2
, 
Sergey A Babin 1
1
 
2
 
3
 
Fiber Optics Research Ctr. of the Russian Academy of Sciences (Russian Federation) | 
4
 
SibSensor LLC (Russian Federation) | 
Publication type: Proceedings Article
Publication date: 2020-04-01
SPIE-Intl Soc Optical Eng
SJR: 0.146
CiteScore: 0.5
Impact factor: —
ISSN: 0277786X, 1996756X
Abstract
The influence of β-radiation exposure (the total dose up to 41.1 MGy and dose rate of 2.5 kGy/s) on the spectral characteristics of high and low reflective FBGs inscribed using femtosecond laser radiation in Ge-doped and pure-silica core fibers with polyimide and metal coating is presented. The largest Bragg wavelength induced shift (BWS) of +55 pm is observed in the case of weak reflective FBG (type I) inscribed in Ge-doped fiber. A comparable red shift in wavelength of + 50 pm is observed in the case of high reflective FBG (type II), which is explained by an increase in the concentration of GeE’-centers and, accordingly, an increase in the effective refractive index. Moreover, a significantly smaller BWS of -10 pm was obtained in the case of high reflective FBGs inscribed in pure-silica core fibers.
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Dostovalov A. V. et al. Study of radiation-induced spectral changes of femtosecond laser written FBG in metal and polyimide coated fiber // Proceedings of SPIE - The International Society for Optical Engineering. 2020. Vol. 11354.
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Dostovalov A. V., Wolf A., Simonov V. A., Korobeynikov M. V., Bryazgin A., Kashaykin P. F., Yakushin S., Mikhailenko M., Babin S. A. Study of radiation-induced spectral changes of femtosecond laser written FBG in metal and polyimide coated fiber // Proceedings of SPIE - The International Society for Optical Engineering. 2020. Vol. 11354.
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RIS Copy
TY - CPAPER
DO - 10.1117/12.2555818
UR - https://doi.org/10.1117/12.2555818
TI - Study of radiation-induced spectral changes of femtosecond laser written FBG in metal and polyimide coated fiber
T2 - Proceedings of SPIE - The International Society for Optical Engineering
AU - Dostovalov, Alexandr V
AU - Wolf, Alexey
AU - Simonov, Victor A
AU - Korobeynikov, Mikhail V
AU - Bryazgin, Alexander
AU - Kashaykin, Pavel F
AU - Yakushin, Sergey
AU - Mikhailenko, Mihail
AU - Babin, Sergey A
PY - 2020
DA - 2020/04/01
PB - SPIE-Intl Soc Optical Eng
VL - 11354
SN - 0277-786X
SN - 1996-756X
ER -
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Cite this
BibTex (up to 50 authors) Copy
@inproceedings{2020_Dostovalov,
author = {Alexandr V Dostovalov and Alexey Wolf and Victor A Simonov and Mikhail V Korobeynikov and Alexander Bryazgin and Pavel F Kashaykin and Sergey Yakushin and Mihail Mikhailenko and Sergey A Babin},
title = {Study of radiation-induced spectral changes of femtosecond laser written FBG in metal and polyimide coated fiber},
year = {2020},
volume = {11354},
month = {apr},
publisher = {SPIE-Intl Soc Optical Eng}
}