Radiation effects on pure silica and Ge-doped silica core optical fibers and fiber Bragg grating sensors

doi:10.1063/5.0244240

IMR OpenIR

	Radiation effects on pure silica and Ge-doped silica core optical fibers and fiber Bragg grating sensors
	Hu, Wen 1,2,3; Shao, Chongyun 3,4; Yu, Chunlei 3; Deng, Lu 3; Ming, Yuzhou 4,5; Ye, Qing 3,4; Li, Xin 3; Liu, Yinpeng 3; Wei, Mengda 3; He, Dongyu 3; Hu, Lili 3; Li, Si-Yu 1,2; Pan, Anlian 1,2,6; Liao, Meisong 3
通讯作者	Li, Si-Yu(lisiyu@hnu.edu.cn) ; Pan, Anlian(anlian.pan@hnu.edu.cn) ; Liao, Meisong(liaomeisong@siom.ac.cn)
	2025-01-14
发表期刊	JOURNAL OF APPLIED PHYSICS
ISSN	0021-8979
卷号	137 期号:2 页码:11
摘要	Fiber Bragg gratings (FBGs) are widely used in high-radiation environments owing to their high sensitivity, stability, and resistance to electromagnetic interference. In this study, pure and Ge-doped silica core fibers were fabricated using chemical vapor deposition. Based on these fibers, two temperature sensors, FBG-Si and FBG-Ge, were developed using femtosecond laser direct writing combined with metalized armoring. The fibers and sensors were exposed to gamma radiation, and their stability, temperature accuracy, and refractive index were systematically evaluated. Electron paramagnetic resonance and radiation-induced loss were used to investigate the effects of gamma radiation on the fiber materials and temperature sensors at the atomic micro-scale. The results showed that the Bragg center wavelength (lambda(B)) of the FBGs linearly redshifted with increasing temperature under non-stressed conditions. After gamma irradiation, at a temperature, lambda(B), redshifted further with increasing radiation dose. The FBG-Si sensor exhibited higher stability and smaller temperature errors than FBG-Ge. Both sensors exhibited a decrease in output power after irradiation. The performance degradation of the FBGs after irradiation is attributed to an increase in the number of color centers and defects within the grating, leading to higher transmission losses. As the radiation dose increased, the concentration of the color centers increased, leading to changes in the refractive index of the gratings. This ultimately resulted in a redshift in lambda(B) and caused temperature measurement errors. (c) 2025 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license(https://creativecommons.org/licenses/by/4.0/)
资助者	University of Chinese Academy of Sciences10.13039/501100011332 ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Lingchuang Research Project of the China National Nuclear Corporation
DOI	10.1063/5.0244240
收录类别	SCI
语种	英语
资助项目	University of Chinese Academy of Sciences10.13039/501100011332[XDB0650000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[CNNC-LCKY-202281] ; Lingchuang Research Project of the China National Nuclear Corporation
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:001397815100003
出版者	AIP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180264
专题	中国科学院金属研究所
通讯作者	Li, Si-Yu; Pan, Anlian; Liao, Meisong
作者单位	1.Hunan Univ, Hunan Inst Optoelect Integrat, Key Lab Micronano Phys & Technol Hunan Prov, Changsha 410082, Peoples R China 2.Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Special Glasses & Fibers Res Ctr, Adv Laser & Optoelect Funct Mat Dept, Shanghai 201800, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 5.China Inst Atom Energy, Beijing 102413, Peoples R China 6.Hunan Normal Univ, Sch Phys & Elect, Changsha 410081, Peoples R China
推荐引用方式 GB/T 7714	Hu, Wen,Shao, Chongyun,Yu, Chunlei,et al. Radiation effects on pure silica and Ge-doped silica core optical fibers and fiber Bragg grating sensors[J]. JOURNAL OF APPLIED PHYSICS,2025,137(2):11.
APA	Hu, Wen.,Shao, Chongyun.,Yu, Chunlei.,Deng, Lu.,Ming, Yuzhou.,...&Liao, Meisong.(2025).Radiation effects on pure silica and Ge-doped silica core optical fibers and fiber Bragg grating sensors.JOURNAL OF APPLIED PHYSICS,137(2),11.
MLA	Hu, Wen,et al."Radiation effects on pure silica and Ge-doped silica core optical fibers and fiber Bragg grating sensors".JOURNAL OF APPLIED PHYSICS 137.2(2025):11.