Enhanced resolution of long-period grating bend sensor

L. Glavind; S. Gao; K. Cook; J. Canning; B. F. Skipper; Y. Luo; G. Peng; M. Kristensen

doi:10.1117/12.2031353

15 October 2013 Enhanced resolution of long-period grating bend sensor

L. Glavind, S. Gao, K. Cook, J. Canning, B. F. Skipper, Y. Luo, G. Peng, M. Kristensen

Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 892437 (2013) https://doi.org/10.1117/12.2031353
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

Abstract

We present an optical fiber bend sensor with enhanced resolution based on the principle of a Mach-Zehnder interferometer in transmission. The sensor is based on two identical Long-Period Gratings separated by approximately 100 mm in a D-shaped single-mode optical fiber. The sensor provides a narrow resonance bandwidth compared to a typical resonance from a Long-Period Grating. The sensor was recoated with low refractive index polyimide and embedded on a fiber-glass base plate before it was characterized as a bending sensor.

Citation Download Citation

L. Glavind, S. Gao, K. Cook, J. Canning, B. F. Skipper, Y. Luo, G. Peng, and M. Kristensen "Enhanced resolution of long-period grating bend sensor", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892437 (15 October 2013); https://doi.org/10.1117/12.2031353

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