
Proceedings Paper
The stabilization of a multiplexed optical fiber interferometer system for on-line precision measurementFormat | Member Price | Non-Member Price |
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Paper 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, the 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 the stabilization while the other interferometer is used for the
measurement. A feed back signal from the feedback loop is driving a tube PZT on which one arm of the fiber
interferometer is wounded. The phase-shift in the 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 the on-line precision measurement. An active
phase tracking technique is applied for signal processing to achieve high resolution. The measurement resolution of the
system is less than 2nm.
Paper Details
Date Published: 3 February 2009
PDF: 7 pages
Proc. SPIE 7157, 2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications, 715704 (3 February 2009); doi: 10.1117/12.805673
Published in SPIE Proceedings Vol. 7157:
2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications
Anbo Wang; YanBiao Liao; AiGuo Song; Yukihiro Ishii; Xudong Fan, Editor(s)
PDF: 7 pages
Proc. SPIE 7157, 2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications, 715704 (3 February 2009); doi: 10.1117/12.805673
Show Author Affiliations
Xie Fang, Beijing Jiaotong Univ. (China)
Zhi Min Chen, Beijing Jiaotong Univ. (China)
Published in SPIE Proceedings Vol. 7157:
2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications
Anbo Wang; YanBiao Liao; AiGuo Song; Yukihiro Ishii; Xudong Fan, Editor(s)
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