Long period grating made by rocking a single mode fiber

Wa Jin; Haifeng Xuan; Wei Jin

doi:10.1117/12.975115

17 October 2012 Long period grating made by rocking a single mode fiber

Wa Jin, Haifeng Xuan, Wei Jin

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84214X (2012) https://doi.org/10.1117/12.975115
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

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.

Citation Download Citation

Wa Jin, Haifeng Xuan, and Wei Jin "Long period grating made by rocking a single mode fiber", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84214X (17 October 2012); https://doi.org/10.1117/12.975115

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