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Journal of Optical Technology

Journal of Optical Technology


  • Vol. 81, Iss. 4 — Apr. 1, 2014
  • pp: 174–181

Transmission characteristics of a Raman-amplified atomic optical filter in rubidium at 780  nm

Wenjin Zhang and Yufeng Peng  »View Author Affiliations

Journal of Optical Technology, Vol. 81, Issue 4, pp. 174-181 (2014)

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The transmission characteristics of a Raman-amplified atomic filter that can be used to detect fairly weak signals in free-space quantum-key distribution or laser communications are analyzed and discussed in the coherent and incoherent pump fields respectively. The theoretical model for the calculation of the transmission characteristics of a ground-state Raman-amplified Faraday dispersion atomic optical filter based on Raman gain and Faraday rotation is presented. The results show that the filter in a coherent pump field can achieve higher transmission and larger tunability than that in an incoherent pump field due to elimination of pumping detuning. In addition, the filter has a large scale tunability over 3.5 GHz via the Faraday transmission peak adjusted while its bandwidth is only 66 MHz, which is useful for free-space laser communication and lidar systems.

© 2014 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters

Original Manuscript: October 17, 2013
Published: May 14, 2014

Wenjin Zhang and Yufeng Peng, "Transmission characteristics of a Raman-amplified atomic optical filter in rubidium at 780  nm," J. Opt. Technol. 81, 174-181 (2014)

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