Optical fiber multiplexing interferometer system with a single laser diode and its application to online displacement measurement

Fang Xie; Yi Lu; Lin Zhang

doi:10.1117/1.2738723

1 May 2007 Optical fiber multiplexing interferometer system with a single laser diode and its application to online displacement measurement

Fang Xie, Yi Lu, Lin Zhang

Author Affiliations +

Optical Engineering, Vol. 46, Issue 5, 051011 (May 2007). https://doi.org/10.1117/1.2738723

Abstract

A multiplexed optical fiber Michelson interferometer system that is self-referenced with a stabilizing feedback loop is presented. This system employs fiber Bragg gratings and wavelength division multiplexing technique to combine two optical fiber interferometers that share the same optical path in the main part of the optical system. When one Michelson interferometer, which uses the fiber Bragg gratings as reflective mirrors and is used as reference interferometer, is stabilized by an electric feedback loop, the other interferometer, which is used for the measurement, is also stabilized. This system is therefore suitable for online precision measurement. An active phase-tracking technique is applied for signal processing to achieve high resolution.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Fang Xie, Yi Lu, and Lin Zhang "Optical fiber multiplexing interferometer system with a single laser diode and its application to online displacement measurement," Optical Engineering 46(5), 051011 (1 May 2007). https://doi.org/10.1117/1.2738723

Published: 1 May 2007

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