Mid-infrared homodyne balanced detector for quantum light characterization

• URL: http://arxiv.org/abs/2103.08977v1
• Date: Tue, 16 Mar 2021 11:08:50 GMT
• Title: Mid-infrared homodyne balanced detector for quantum light characterization
• Authors: Tecla Gabbrielli, Francesco Cappelli, Natalia Bruno, Nicola Corrias, Simone Borri, Paolo De Natale, Alessandro Zavatta
• Abstract summary: We present the characterization of a novel balanced homodyne detector operating in the mid-infrared. We discuss the experimental results with a view to possible applications to quantum technologies, such as free-space quantum communication.
• Score: 52.77024349608834
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We present the characterization of a novel balanced homodyne detector operating in the mid-infrared. The challenging task of revealing non-classicality in mid-infrared light, e.~g. in quantum cascade lasers emission, requires a high-performance detection system. Through the intensity noise power spectral density analysis of the differential signal coming from the incident radiation, we show that our setup is shot-noise limited. We discuss the experimental results with a view to possible applications to quantum technologies, such as free-space quantum communication.

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