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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 26 — Dec. 21, 2009
  • pp: 23867–23872

Retro-detective control structures for free-space optical communication links

Xian Jin, Jason E. Barg, and Jonathan F. Holzman  »View Author Affiliations

Optics Express, Vol. 17, Issue 26, pp. 23867-23872 (2009)

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A corner-cube-based retro-detection photocell is introduced. The structure consists of three independent and mutually perpendicular photodiodes (PDs), whose differential photocurrents can be used to probe the alignment state of incident beams. These differential photocurrents are used in an actively-controlled triangulation procedure to optimize the communication channel alignment in a free-space optical (FSO) system. The active downlink and passive uplink communication capabilities of this system are demonstrated.

© 2009 OSA

OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(230.0230) Optical devices : Optical devices

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: August 7, 2009
Revised Manuscript: December 9, 2009
Manuscript Accepted: December 10, 2009
Published: December 15, 2009

Xian Jin, Jason E. Barg, and Jonathan F. Holzman, "Retro-detective control structures for 
free-space optical communication links," Opt. Express 17, 23867-23872 (2009)

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