Quadrature phase shift keying coherent state discrimination via a hybrid receiver

C. R. Müller, M. A. Usuga, C. Wittmann, M. Takeoka, C. Marquardt, U. L. Andersen, G. Leuchs

研究成果: Article査読

47 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号083009
ジャーナルNew Journal of Physics
14
DOI
出版ステータスPublished - 2012 8
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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