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Proceedings Paper

Stabilization Of Fiber Interferometric Sensors With Double-Loop Phase Compensation
Author(s): Ton Ko; Chung-Ho Hsia; Ming-Wen Chang
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Paper 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).

Paper Details

Date Published: 1 January 1987
PDF: 2 pages
Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967302
Show Author Affiliations
Ton Ko, Chung Shan Institute of Science and Technology (China)
Chung-Ho Hsia, Chung Shan Institute of Science and Technology (China)
Ming-Wen Chang, National Central University (China)


Published in SPIE Proceedings Vol. 0813:
Optics and the Information Age

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