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arXiv · 1203.2956

Optical interferometry in the presence of large phase diffusion

Marco G. Genoni·Stefano Olivares·Davide Brivio·Simone Cialdi·Daniele Cipriani·Alberto Santamato·Stefano Vezzoli·Matteo G. A. Paris
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Abstract

Phase diffusion represents a crucial obstacle towards the implementation of high precision interferometric measurements and phase shift based communication channels. Here we present a nearly optimal interferometric scheme based on homodyne detection and coherent signals for the detection of a phase shift in the presence of large phase diffusion. In our scheme the ultimate bound to interferometric sensitivity is achieved already for a small number of measurements, of the order of hundreds, without using nonclassical light.

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Marco G. Genoni, Stefano Olivares, Davide Brivio, Simone Cialdi, Daniele Cipriani, Alberto Santamato, Stefano Vezzoli, Matteo G. A. Paris. 2012-03-13. Optical interferometry in the presence of large phase diffusion. https://doi.org/10.1103/physreva.85.043817

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