31 January 2001 Dividing optical power for maximum signal-to-noise ratio in a self-mixing FMCW system
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Abstract
An examination on how to divide the optical power between the local oscillator radiation and radiation sent towards the target for maximized signal-to-noise ratio, has been carried out. From the self-mixing equations, by substituting electrical fields with optical power and including relevant noise sources, an expression for the signal-to-noise ratio (SNR) for the photodiode has been obtained. From this equation the conditions for maximum SNR has been derived.
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Daniel Nordin, Daniel Nordin, Kalevi Hyyppae, Kalevi Hyyppae, } "Dividing optical power for maximum signal-to-noise ratio in a self-mixing FMCW system", Proc. SPIE 4167, Atmospheric Propagation, Adaptive Systems, and Laser Radar Technology for Remote Sensing, (31 January 2001); doi: 10.1117/12.413838; https://doi.org/10.1117/12.413838
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