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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 23, Iss. 21 — Nov. 1, 1984
  • pp: 3901–3904

Maximum heterodyne efficiency of optical heterodyne detection in the presence of background radiation

Kazumasa Tanaka and Nobuhiro Saga  »View Author Affiliations


Applied Optics, Vol. 23, Issue 21, pp. 3901-3904 (1984)
http://dx.doi.org/10.1364/AO.23.003901


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Abstract

Maximum heterodyne efficiency is obtained for an optical heterodyne detection system in the presence of background radiation. When the local oscillator (LO) power is limited, the signal-to-noise ratio in the output is degraded from that of quantum-noise-limited detection by the background radiation noise. To reduce it, an aperture is used in front of the detector. The optimum incidence conditions of the signal and the corresponding maximum heterodyne efficiency are obtained numerically assuming that the signal and the LO fields are determinable and have Gaussian amplitude distributions. The spontaneous emission from the laser amplifier located just in front of the system is taken into account as the background radiation.

© 1984 Optical Society of America

History
Original Manuscript: February 13, 1984
Published: November 1, 1984

Citation
Kazumasa Tanaka and Nobuhiro Saga, "Maximum heterodyne efficiency of optical heterodyne detection in the presence of background radiation," Appl. Opt. 23, 3901-3904 (1984)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-23-21-3901


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