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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 11 — May. 23, 2011
  • pp: 10789–10796

High-sensitivity DPSK receiver for high-bandwidth free-space optical communication links

Juan C. Juarez, David W. Young, Joseph E. Sluz, and Larry B. Stotts  »View Author Affiliations

Optics Express, Vol. 19, Issue 11, pp. 10789-10796 (2011)

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A high-sensitivity modem and high-dynamic range optical automatic gain controller (OAGC) have been developed to provide maximum link margin and to overcome the dynamic nature of free-space optical links. A sensitivity of −48.9 dBm (10 photons per bit) at 10 Gbps was achieved employing a return-to-zero differential phase shift keying based modem and a commercial Reed-Solomon forward error correction system. Low-noise optical gain was provided by an OAGC with a noise figure of 4.1 dB (including system required input loses) and a dynamic range of greater than 60 dB.

© 2011 OSA

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2605) Fiber optics and optical communications : Free-space optical communication

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: March 8, 2011
Revised Manuscript: May 8, 2011
Manuscript Accepted: May 12, 2011
Published: May 18, 2011

Juan C. Juarez, David W. Young, Joseph E. Sluz, and Larry B. Stotts, "High-sensitivity DPSK receiver for high-bandwidth free-space optical communication links," Opt. Express 19, 10789-10796 (2011)

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