Accession Number:

AD0902097

Title:

Wideband Electronics for High Speed Digital Laser Communications.

Descriptive Note:

Final rept. 1 Mar 71-1 Apr 72,

Corporate Author:

TRW SYSTEMS GROUP REDONDO BEACH CA

Report Date:

1972-05-01

Pagination or Media Count:

100.0

Abstract:

This report describes the design and development of the high speed data handling electronics for a mode locked laser communications system. The electronics consist of a transmitter electronics and a receiver electronics package. The transmitter electronics accepts up to four channels of video, analog multiplexes the video onto a single line, interfaces with a 6-bit 50 Mss AD converter, adds digital sync information, multiplexes the digital data into a serial stream, and interfaces the data to a mode locked laser modulator at 200 or 300 Mbs. The receiver electronics accepts the detected 1 mV, 0.5 nsec triangular pulse output of the laser receiver, performs bit synchronization, digital demultiplexing, automatic sync acquisition, and DA conversion, thereby reproducing the four video streams. A bit error checker and counter are incorporated into the receiver electronics to allow bit error rate tests to be run on the link. Tests were run on a simulated laser link. A reliability study was performed to assess the potential reliability of this type of equipment when designed for space or controlled environment ground use. Author

Subject Categories:

  • Lasers and Masers
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE