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Proceedings Paper

Influence of Grating Fabrication on Radiation Sensitivity of Fiber Bragg Gratings
Author(s): Song Lin; Jing Jin; Ningfang Song; Gongliu Yang; Yuntian Jiang
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Paper Abstract

Fiber Bragg Gratings (FBGs) are candidates for a number of applications in space-borne systems not only owing to their optical functionality but also because they have low mass, small dimensions, and because they are immune to electromagnetic interference. In the case of Earth observation and telecommunication satellites the multiplexing in the optical domain, based on the FBGs, allows a significant reduction of the complexity of on-board electronic systems. Another perspective domain is the fiber sensor systems, such as strain sensors integrated into fuel tanks or structural health monitoring of large space structures. In order to be actually used in space-born systems, FBGs must demonstrate a high stability of their properties over the whole mission time. However, radiation may affect its properties. The possible ways of improving the radiation tolerance of FBGs should be researched. The influence of grating fabrication on radiation sensitivity of the FBGs has been investigated experimentally in this paper. The FBGs were fabricated in different process and GeO2 concentrations. Pre-irradiation and H2-loading were applied to change the radiation sensitivity of the FBGs. The FBGs were fabricated in photosensitive fiber and coupling single mode fiber with a GeO2 concentration in a range from 0.33 to 23 mol%. The lowest Bragg wavelength shift (13 pm) was obtained by a grating written in photosensitive fiber PSF-GeB-125, with pre-irradiation and without H2-loading for a total dose of about 50 kGy.

Paper Details

Date Published: 15 October 2012
PDF: 11 pages
Proc. SPIE 8418, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Smart Structures, Micro- and Nano-Optical Devices, and Systems, 84181J (15 October 2012); doi: 10.1117/12.975958
Show Author Affiliations
Song Lin, Beihang Univ. (China)
Jing Jin, Beihang Univ. (China)
Ningfang Song, Beihang Univ. (China)
Gongliu Yang, Beihang Univ. (China)
Yuntian Jiang, No. 3 Research Institute, Second Artillery Equipment Academy (China)


Published in SPIE Proceedings Vol. 8418:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Smart Structures, Micro- and Nano-Optical Devices, and Systems
Tianchun Ye; Song Hu; Yanqiu Li; Xiangang Luo; Xiaoyi Bao, Editor(s)

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