A 1 Km RANGE OPTICAL LINK FOR VIDEO SIGNALS INCORPORATING A SIMPLE agc AND TEMPERATURE COMPENSATION CIRCUIT FOR AVALANCHE PHOTODIODES,
Abstract
Gallium arsenide lamps and silicon avalanche detectors are reliable components for optical communication. It has been shown that direct analogue modulation is probably the best approach to a 1Km range optical communication link for video bandwiths. This memorandum describes briefly experimental terminals for such a link. Laboratory measurement indicated that a clear weather 'in hand' factor of 13dB or more above the 30dB S/N ratio needed should be achieved resulting in an expected outage time of less than 10 days per year. A simple AGC and temperature stabilization circuit for avalanche diodes is described. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1970
- Accession Number
- AD0708677
Entities
People
- M. J. Dore