Optimum optical local oscillator power levels in coherent detection systems

J. Fred Holmes; Badih John Rask

doi:10.1117/12.142009

1 April 1993 Optimum optical local oscillator power levels in coherent detection systems

J. Fred Holmes, Badih John Rask

Proceedings Volume 1982, Photoelectronic Detection and Imaging: Technology and Applications '93; (1993) https://doi.org/10.1117/12.142009
Event: Photoelectronic Detection and Imaging: Technology and Applications '93, 1993, Beijing, China

Abstract

Use of an optical local oscillator for coherent detection with a photoconductor or a photodiode can significantly reduce the responsivity of the detector due to saturation effects. Consequently, local oscillator shot noise limited operation of the detector may not be possible. However, a local oscillator power level can be selected that maximizes the signal to noise ratio.

Citation Download Citation

J. Fred Holmes and Badih John Rask "Optimum optical local oscillator power levels in coherent detection systems", Proc. SPIE 1982, Photoelectronic Detection and Imaging: Technology and Applications '93, (1 April 1993); https://doi.org/10.1117/12.142009

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