Stabilization of a multiplexed optical fiber interferometer system

Xie Fang; Jia Jia; Zhimin Chen

doi:10.1117/12.828595

20 May 2009 Stabilization of a multiplexed optical fiber interferometer system

Xie Fang, Jia Jia, Zhimin Chen

Proceedings Volume 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 72830D (2009) https://doi.org/10.1117/12.828595
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

The stabilization of a multiplexed optical fiber interferometer system for on-line displacement precision measurement with a simple electric feedback loop is presented. Based on the characteristics of fiber Bragg gratings, a multiplexed optical fiber interferometer system includes two independent optical fiber Michelson interferometers, of which the optical path is almost overlapped. One interferometer is used for stabilization while other interferometer is used for measurement. A feed back signal from the feedback loop drives tube PZT, on which one arm of the fiber interferometer is wounded. The phase-shift in two arms of the interferometer resulting from the temperature fluctuations and other types of environmental disturbances is compensated. The bandwidth of the feedback loop is 5kHz. This makes the multiplexed fiber interferometer system stable enough for on-line precision measurement.

Citation Download Citation

Xie Fang, Jia Jia, and Zhimin Chen "Stabilization of a multiplexed optical fiber interferometer system", Proc. SPIE 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 72830D (20 May 2009); https://doi.org/10.1117/12.828595

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