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8 March 2017 Investigation of polarization matching based on dual-balanced coherent detection
Hua Zhang, Yi-hua Hu
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Proceedings Volume 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016; 102553I (2017) https://doi.org/10.1117/12.2267512
Event: Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 2016, Jinhua, Suzhou, Chengdu, Xi'an, Wuxi, China
Abstract
The theoretical model and mathematical description of dual-balanced coherent detection ( or dual-balanced coherent detection ) are established，with which the current formula and output power formula of intermediate frequency (IF) signals are deduced. Theoretical analysis shows that this dual-balanced coherent detection technique can effectively solve the polarization matching of signal light and local light, and improve the stability of signal measurement, and reduce the influence on signal-to-noise ratio (SNR) of the system. Meanwhile, the technique also have the above advantages compared with single-balanced coherent detection. Hopefully, the dual-balanced coherent detection method could be applied in a wide range of fields.
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Hua Zhang and Yi-hua Hu "Investigation of polarization matching based on dual-balanced coherent detection", Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 102553I (8 March 2017); https://doi.org/10.1117/12.2267512
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KEYWORDS
Signal detection
Polarization
Signal to noise ratio
Picosecond phenomena
Heterodyning
LIDAR
Electroluminescence
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