Optical receiver for VHF multichannel video transmission

Optical receiver for VHF multichannel video transmission

Optical receivers for multichannel TV transmission in the VHF band are analyzed and tested from the viewpoints of linearity, sensitivity, and frequency response. Photodiodes and avalanche photodiodes are compared for use as a front-end detector. Optimization of the preamplifiers is studied in terms...

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Veröffentlicht in:IEEE journal on selected areas in communications 1990-09, Vol.8 (7), p.1382-1386
Hauptverfasser: Takahashi, Y., Nagano, K., Takasaki, Y.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Avalanche photodiodes
Broadcasting. Videocommunications. Audiovisual
Circuit noise
Coils
Detectors
Exact sciences and technology
Linearity
Optical distortion
Optical modulation
Optical receivers
Preamplifiers
Telecommunications
Telecommunications and information theory
TV receivers
Videocommunications (networks and services)
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Beschreibung
Zusammenfassung:Optical receivers for multichannel TV transmission in the VHF band are analyzed and tested from the viewpoints of linearity, sensitivity, and frequency response. Photodiodes and avalanche photodiodes are compared for use as a front-end detector. Optimization of the preamplifiers is studied in terms of both configurations and biasing conditions. Improvement of frequency characteristics, using a Percival coil, is also investigated. It is concluded that a receiver using a photodiode can attain as high a sensitivity as and a greater linearity (around 5 dB) than one using an avalanche photodiode.< >
ISSN:0733-8716
1558-0008
DOI:10.1109/49.59141