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Proceedings Paper

Breadboard model of a coherent optical BPSK homodyne system with virtual pilot tone (ViP)-based receiver and MRC auxiliary channel
Author(s): Florian David; Christoph Rapp
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Paper 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.

Paper Details

Date Published: 2 May 2000
PDF: 10 pages
Proc. SPIE 3932, Free-Space Laser Communication Technologies XII, (2 May 2000); doi: 10.1117/12.384316
Show Author Affiliations
Florian David, DLR (Germany)
Christoph Rapp, DLR (Germany)


Published in SPIE Proceedings Vol. 3932:
Free-Space Laser Communication Technologies XII
G. Stephen Mecherle, Editor(s)

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