Experimental source separation estimation reaching the Cramér-Rao bound

David Barral; Clémentine Rouvière; Antonin Grateau; Ilya Karuseichyk; Giacomo Sorelli; Manuel Gessner; Mattia Walschaers; Nicolas Treps

doi:10.1117/12.2657172

9 March 2023 Experimental source separation estimation reaching the Cramér-Rao bound

David Barral, Clémentine Rouvière, Antonin Grateau, Ilya Karuseichyk, Giacomo Sorelli, Manuel Gessner, Mattia Walschaers, Nicolas Treps

Author Affiliations +

Proceedings Volume PC12447, Quantum Sensing, Imaging, and Precision Metrology; PC124471A (2023) https://doi.org/10.1117/12.2657172
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

We experimentally implement the separation estimation between to incoherent optical sources. Our method, relying on spatial-mode demultiplexing and intensity measurements, saturates the Cramèr-Rao bound, with a five orders of magnitude gain compared to the Rayleigh limit.

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Citation Download Citation

David Barral, Clémentine Rouvière, Antonin Grateau, Ilya Karuseichyk, Giacomo Sorelli, Manuel Gessner, Mattia Walschaers, and Nicolas Treps "Experimental source separation estimation reaching the Cramér-Rao bound", Proc. SPIE PC12447, Quantum Sensing, Imaging, and Precision Metrology, PC124471A (9 March 2023); https://doi.org/10.1117/12.2657172

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