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29 November 2012 A balanced optical heterodyne detection for local-oscillator excess-noise suppression
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Abstract
A semiclassical approach is used to calculate the principle for heterodyne detection utilizing two optical detectors. These calculations show that excess-noise in the local-oscillator can be canceled and the balanced-detector optical heterodyne detection requires less local oscillator power compared with the traditional single-detector optical heterodyne detection. An experimental demonstration of excess-noise cancellation is reported.
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Jie Yang, Zhaohui Hu, and Yuchi Zhang "A balanced optical heterodyne detection for local-oscillator excess-noise suppression", Proc. SPIE 8552, Semiconductor Lasers and Applications V, 85520X (29 November 2012); https://doi.org/10.1117/12.999960
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