Stabilization Of Fiber Interferometric Sensors With Double-Loop Phase Compensation

Ton Ko; Chung-Ho Hsia; Ming-Wen Chang

doi:10.1117/12.967302

1 January 1987 Stabilization Of Fiber Interferometric Sensors With Double-Loop Phase Compensation

Ton Ko, Chung-Ho Hsia, Ming-Wen Chang

Proceedings Volume 0813, Optics and the Information Age; (1987) https://doi.org/10.1117/12.967302
Event: 14th Congress of the International Commission for Optics, 1987, Quebec, Canada

Abstract

One of the conventional methods to improve the operational stabilization of the Mach-Zehnder fiber interferometer is using the single-loop-feedback (SLF) compensation for the phase drift between the signal and reference arm of the interferometer"2"3). However, the random variation of the wave polarization state in the single-mode fiber of the two arms will affect the stability of the mixing efficiency when the two beams combine, unless polarization-maintaining fibers are used. Without the special fiber, one may apply automatic gain control MGC) circuit4) in the detection to stabilize the amplitude of the detected signal but the signal-to-noise performance of the system can not be promoted, especially in the presence of severe polarization fading 5).

Citation Download Citation

Ton Ko, Chung-Ho Hsia, and Ming-Wen Chang "Stabilization Of Fiber Interferometric Sensors With Double-Loop Phase Compensation", Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); https://doi.org/10.1117/12.967302

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