A digital passive phase demodulation scheme using 3×3 coupler for fiber-optic interferometric sensors

16 May 2008 A digital passive phase demodulation scheme using 3×3 coupler for fiber-optic interferometric sensors

M. Pang, M. Zhang, L. W. Wang, W. Jin, Y. B. Liao

Author Affiliations +

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70042L (2008) https://doi.org/10.1117/12.786000
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

A real-time digital phase demodulation scheme is developed. This scheme, based on cos^-1 and channel-choosing techniques, uses the two optical outputs from a 3×3 coupler to overcome the signal fading problem of fiber interferometer.

Citation Download Citation

M. Pang, M. Zhang, L. W. Wang, W. Jin, and Y. B. Liao "A digital passive phase demodulation scheme using 3×3 coupler for fiber-optic interferometric sensors", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70042L (16 May 2008); https://doi.org/10.1117/12.786000

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