Low cost pressure sensor system based on polarization-maintaining photonic crystal fiber operating at 850 nm with CCD interrogator

Lok-hin Cho; H. Y. Fu; Chuang Wu; C. Lu; H. Y. Tam

doi:10.1117/12.884998

17 May 2011 Low cost pressure sensor system based on polarization-maintaining photonic crystal fiber operating at 850 nm with CCD interrogator

Lok-hin Cho, H. Y. Fu, Chuang Wu, C. Lu, H. Y. Tam

Author Affiliations +

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77533P (2011) https://doi.org/10.1117/12.884998
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

The use of polarization-maintaining photonic crystal fiber in a Sagnac interferometer configuration operating at 850 nm shows large response to applied pressure. The sensor demonstrates a 300% improvement in sensitivity than when operating at 1550 nm. Using wavelengths at the 850 nm window enable the use of low-cost CCD-interrogator which also provides a much higher spectrum scanning speed than the much more expensive optical spectrum analyzers.

Citation Download Citation

Lok-hin Cho, H. Y. Fu, Chuang Wu, C. Lu, and H. Y. Tam "Low cost pressure sensor system based on polarization-maintaining photonic crystal fiber operating at 850 nm with CCD interrogator", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77533P (17 May 2011); https://doi.org/10.1117/12.884998

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