Homodyne detection as a near-optimum receiver for phase-shift-keyed binary communication in the presence of phase diffusion
Articolo
Data di Pubblicazione:
2013
Citazione:
Homodyne detection as a near-optimum receiver for phase-shift-keyed binary communication in the presence of phase diffusion / S. Olivares, S. Cialdi, F. Castelli, M.G.A. Paris. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 87:5(2013 May 17), pp. 050303.1-050303.4. [10.1103/PhysRevA.87.050303]
Abstract:
We address binary optical communication channels based on phase-shift-keyed coherent signals in the presence of phase diffusion. We prove theoretically and demonstrate experimentally that a discrimination strategy based on homodyne detection is robust against this kind of noise for any value of the channel energy. Moreover, we find that a homodyne receiver beats the performance of a Kennedy receiver as the signal energy increases and achieves the Helstrom bound in the limit of large noise.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
quantum detection ; discrimination theory ; quantum communication
Elenco autori:
S. Olivares, S. Cialdi, F. Castelli, M.G.A. Paris
Link alla scheda completa: