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Proceedings Paper

Long period grating made by rocking a single mode fiber
Author(s): Wa Jin; Haifeng Xuan; Wei Jin
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Paper Abstract

Long period gratings (LPGs) can be made by rocking a single mode fiber and at the same time periodically scanning a focused CO2 beam across the fiber. A 15 period LPG with ~ 3 degree rocking angle and 1.3 mm pitch exhibits a narrow bandwidth of 4.8 nm and a resonant attenuation of 33.5 dB. The novel LPG has a temperature sensitivity of -77 pm/°C and a strain sensitivity of -0.14 nm/mε , and is insensitive to twist.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84214X (17 October 2012); doi: 10.1117/12.975115
Show Author Affiliations
Wa Jin, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Haifeng Xuan, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Wei Jin, The Hong Kong Polytechnic Univ. (Hong Kong, China)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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