Homodyne-like detection for coherent state-discrimination in the presence of phase noise

2016/09/02 by Matteo Bina, Alessia Allevi, Maria Bondani +1 · 30 citations
Computer Science · Physics and Astronomy · #Advanced Frequency and Time Standards #Advanced Optical Sensing Technologies #Detection theory #Detector #Function (biology) #Gaussian #Gaussian noise #Noise (video) #Phase (matter) #Phase detector #Phase noise #Quantum Information and Cryptography #Signal processing #quant-ph

paper · pdf · open access · doi:10.1364/oe.25.010685

published in Optics Express 25(9), 10685 (Optica Publishing Group) · 5 pages, 5 figures

arxiv created 2016/09/02 · openalex created_date 2016/09/16 · openalex publication_date 2017/04/28 · arxiv updated 2018/03/01 · openalex updated_date 2026/08/05

Abstract

We propose a homodyne-like detection scheme involving photon-number-resolving detectors to discriminate between two coherent states affected by either uniform or gaussian phase noise. A proof-of-principle experiment is performed employing two hybrid photodetectors, whose outputs are used in post processing to calculate the shot-by-shot photon-number differences. The performance of the strategy is quantified in terms of the error probability in discriminating the noisy coherent signals as a function of the characteristic noise parameters.

Citations

• Homodyne detection as a near-optimum receiver for phase-shift-keyed binary communication in the presence of phase diffusion
• Observing optical coherence across Fock layers with weak-field homodyne detectors
• Direct measurement of the Wigner function by photon counting
• Bootstrap Methods: Another Look at the Jackknife

Cited by

• Hybrid quantum key distribution using coherent states and photon-number-resolving detectors
• Squeezing as a resource to counteract phase diffusion in optical phase estimation