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Proceedings Article

90 degree optical hybrid for coherent receivers

[+] Author Affiliations
Reiner B. Garreis

Carl Zeiss (Germany)

Proc. SPIE 1522, Optical Space Communication II, 210 (May 1, 1991); doi:10.1117/12.46097
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From Conference Volume 1522

  • Optical Space Communication II
  • Juergen Franz
  • Munich, Federal Republic of Germany | June 10, 1991

abstract

The power losses and noise of the present 90-deg hybrid optical coherent receiver are minimized through the use of a six-port configuration in which channel balancing is furnished by half-wave plates. The 90-deg shift is introduced between orthogonally polarized beam components by a quarter-wave plate, and the output ports are phase-shifted by 180 deg through the sole use of the half-wave plates and polarizing beam splitters.

© (1991) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Reiner B. Garreis
"90 degree optical hybrid for coherent receivers", Proc. SPIE 1522, Optical Space Communication II, 210 (May 1, 1991); doi:10.1117/12.46097; http://dx.doi.org/10.1117/12.46097


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