Strain and temperature discrimination by using a birefringence fiber loop and a long period grating in a photonic crystal fiber

Chun-Liu Zhao; Jiarong Zhao; Wei Jin; X. Huang; Xinyong Dong

doi:10.1117/12.842870

28 October 2009 Strain and temperature discrimination by using a birefringence fiber loop and a long period grating in a photonic crystal fiber

Chun-Liu Zhao, Jiarong Zhao, Wei Jin, X. Huang, Xinyong Dong

Author Affiliations +

Proceedings Volume 7514, Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors; 751413 (2009) https://doi.org/10.1117/12.842870
Event: Photonics and Optoelectronics Meetings 2009, 2009, Wuhan, China

Abstract

We present a new design for simultaneous strain and temperature discrimination using a high-birefringence fiber loop mirror (HiBi-FLM) concatenated with a temperature insensitive long-period grating (LPG) written in a photonic crystal fiber (PCF). The FLM acts as a sensor head, while the LPG in PCF serves as a filter to convert wavelength variation to optical power change. By measuring the wavelength variation and the power difference of two near peaks in the spectral response of this configuration, strain and temperature discrimination is obtained.

Citation Download Citation

Chun-Liu Zhao, Jiarong Zhao, Wei Jin, X. Huang, and Xinyong Dong "Strain and temperature discrimination by using a birefringence fiber loop and a long period grating in a photonic crystal fiber", Proc. SPIE 7514, Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors, 751413 (28 October 2009); https://doi.org/10.1117/12.842870

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