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Proceedings Article

Breadboard model of a coherent optical BPSK homodyne system with virtual pilot tone (ViP)-based receiver and MRC auxiliary channel

[+] Author Affiliations
Florian David, Christoph Rapp

DLR (Germany)

Proc. SPIE 3932, Free-Space Laser Communication Technologies XII, 35 (May 2, 2000); doi:10.1117/12.384316
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From Conference Volume 3932

  • Free-Space Laser Communication Technologies XII
  • G. Stephen Mecherle
  • San Jose, CA | January 22, 2000

abstract

This paper presents a bread-board model of an optical BPSK homodyne system. A new phase synchronization method--the so- called Virtual Pilot-tone method--enables a dramatic reduction of the system completely. Although fully compatible to the transmit signal of a high data rate Costas Loop system, the receiver design is enormously simplified. Neither an optical 90 degree(s) hybrid nor digital high speed electronics are needed. An additional low data rate auxiliary channel is provided by using a Modulated Residual Carrier and envelope detection.The data rate of this auxiliary channel has to be well below that of the main channel, but is sufficient for transmitting e.g. telemetry data. Both methods and their realization are explained. Simulation and practical results are displayed and compared to a standard Costas Loop design.

© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Florian David and Christoph Rapp
"Breadboard model of a coherent optical BPSK homodyne system with virtual pilot tone (ViP)-based receiver and MRC auxiliary channel", Proc. SPIE 3932, Free-Space Laser Communication Technologies XII, 35 (May 2, 2000); doi:10.1117/12.384316; http://dx.doi.org/10.1117/12.384316


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