Optical phase estimation via homodyne measurement in the presence of saturation effect of photodetectors
arXiv:2501.06768 · doi:10.1103/PhysRevA.111.042629
Abstract
For optical phase estimation via homodyne measurement, we generalize the theory from detector's linear to nonlinear response regime, which accounts for the presence of saturation effect. For optical coherent light, we carry out analytic expressions for detector's current and estimate precision. Using specific device parameters, we illustrate the improved estimation after accounting for the saturation effect.
arXiv comment4 pages,2 figures,1 table
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