Temperature independent microbending polarization maintaining photonic-crystal-fiber based microdisplacement sensor

Bo Dong; Jianzhong Hao

doi:10.1117/12.964255

7 November 2012 Temperature independent microbending polarization maintaining photonic-crystal-fiber based microdisplacement sensor

Bo Dong, Jianzhong Hao

Author Affiliations +

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84216Q (2012) https://doi.org/10.1117/12.964255
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

A temperature independent microdisplacement sensor based on microbending-induced core-cladding mode coupling loss via a polarization maintaining photonic-crystal-fiber (PMPCF) is presented. By core-offsetting one splice joint between the single mode fiber (SMF) and PMPCF in an SMF-PMPCF-SMF structure, one core-cladding modal interferometer can be constructed. By packaging the interferometer in a carbon-fiber-composite based simple-supported beam, temperature independent microdisplacement measurement can be achieved by monitoring the extinction ratio variation of the interference spectrum. This type of sensor exhibits the advantages of temperature independent, high sensitivity and simple structure.

Citation Download Citation

Bo Dong and Jianzhong Hao "Temperature independent microbending polarization maintaining photonic-crystal-fiber based microdisplacement sensor", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84216Q (7 November 2012); https://doi.org/10.1117/12.964255

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KEYWORDS

Sensors

Cladding

Interferometers

Single mode fibers

Fiber optics

Photon polarization

Polarization

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