Dual-polarization fiber grating laser displacement sensor

Yang Zhang; Bai-Ou Guan

doi:10.1117/12.834821

5 October 2009 Dual-polarization fiber grating laser displacement sensor

Yang Zhang, Bai-Ou Guan

Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75033Z (2009) https://doi.org/10.1117/12.834821
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

Abstract

A high sensitivity displacement sensor based on a dual-polarization fiber grating laser incorporated with a cantilever beam is demonstrated. The cantilever beam transforms the displacement into a transverse force to the fiber grating laser which changes the fiber birefringence and therefore the polarization mode beat frequency of the laser. A sensitivity of 0.535 GHz/mm is implemented.

Citation Download Citation

Yang Zhang and Bai-Ou Guan "Dual-polarization fiber grating laser displacement sensor", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75033Z (5 October 2009); https://doi.org/10.1117/12.834821

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