Experimental multiparameter estimation for incoherent sources imaging reaching the quantum limit

Nicolas Treps; Pauline Boucher; Manuel Gessner; Clémentine Rouvière; Giacomo Sorelli; Mattia Walschaers; Claude Fabre

doi:10.1117/12.2588338

5 March 2021 Experimental multiparameter estimation for incoherent sources imaging reaching the quantum limit

Nicolas Treps, Pauline Boucher, Manuel Gessner, Clémentine Rouvière, Giacomo Sorelli, Mattia Walschaers, Claude Fabre

Proceedings Volume 11700, Optical and Quantum Sensing and Precision Metrology; 117002G (2021) https://doi.org/10.1117/12.2588338
Event: SPIE OPTO, 2021, Online Only

Abstract

Superresolution techniques based on intensity measurements after a spatial mode decomposition can overcome the precision of diffraction-limited direct imaging. We present both the experimental implementation of simultaneous spatial multimode demultiplexing as a distance measurement tool and the theoretical analysis of the actual sensitivity limits given the main experimental imperfection: cross-talks between channels. We demonstrate the distance estimation between two incoherent beams in both directions of the transverse plane, and find a perfect accordance with theoretical predictions, given a proper calibration of the demultiplexer. We show that, even though sensitivity is limited by the cross-talk between channels, we can perform measurements in two dimensions much beyond the Rayleigh limit over a large dynamic range. Combining statistical and analytical tools, we obtain the scaling of the precision limits for weak, generic crosstalk from a device-independent model as a function of the crosstalk probability and N.

Conference Presentation

Citation Download Citation

Nicolas Treps, Pauline Boucher, Manuel Gessner, Clémentine Rouvière, Giacomo Sorelli, Mattia Walschaers, and Claude Fabre "Experimental multiparameter estimation for incoherent sources imaging reaching the quantum limit", Proc. SPIE 11700, Optical and Quantum Sensing and Precision Metrology, 117002G (5 March 2021); https://doi.org/10.1117/12.2588338

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