Quadrature phase shift keying coherent state discrimination via a hybrid receiver

Müller C, Usuga MA, Wittmann C, Takeoka M, Marquardt C, Andersen UL, Leuchs G (2012)

Publication Type: Journal article

Publication year: 2012

Journal

New Journal of Physics Institute of Physics: Open Access Journals / Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft

Book Volume: 14

Article Number: 083009

DOI: 10.1088/1367-2630/14/8/083009

Abstract

We propose and experimentally demonstrate a near-optimal discrimination scheme for the quadrature phase shift keying (QPSK) protocol. We show in theory that the performance of our hybrid scheme is superior to the standard scheme-heterodyne detection-for all signal amplitudes and underpin the predictions with our experimental results. Furthermore, our scheme provides hitherto the best performance in the domain of highly attenuated signals. The discrimination is composed of a quadrature measurement, a conditional displacement and a threshold detector. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

Authors with CRIS profile

Christian Müller Lehrstuhl für Experimentalphysik (Optik) Christoffer Wittmann Lehrstuhl für Experimentalphysik (Optik) Christoph Marquardt Institut für Optik, Information und Photonik Gerhard Leuchs Lehrstuhl für Experimentalphysik (Optik)

Involved external institutions

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light

Germany (DE) National Institute of Informatics (NII)

Japan (JP)

How to cite

APA:

Müller, C., Usuga, M.A., Wittmann, C., Takeoka, M., Marquardt, C., Andersen, U.L., & Leuchs, G. (2012). Quadrature phase shift keying coherent state discrimination via a hybrid receiver. New Journal of Physics, 14. https://doi.org/10.1088/1367-2630/14/8/083009

MLA:

Müller, Christian, et al. "Quadrature phase shift keying coherent state discrimination via a hybrid receiver." New Journal of Physics 14 (2012).

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