Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/72841
Title: Overmodulated single-octave subcarrier multiplexed optical networks for multichannel FM video distribution
Authors: Mendis, F.V.C. 
Tan, B.T. 
Issue Date: 1990
Source: Mendis, F.V.C.,Tan, B.T. (1990). Overmodulated single-octave subcarrier multiplexed optical networks for multichannel FM video distribution. Conference Record - International Conference on Communications 2 : 404-408. ScholarBank@NUS Repository.
Abstract: In subcarrier multiplexed (SCM) multichannel FM video systems, the carrier-to-noise ratio per channel may be increased by overmodulating the laser diode source. The authors predict the overmodulation that may be employed in practice for single-octave SCM transmission in passive optical networks. It is shown that optical modulation indices (OMI) exceeding 500% may be used if the number of subcarriers is large. A 47-dB signal-to-noise ratio (with 4-dB margin) is deemed sufficient for acceptable picture quality in cable distribution systems, while a 56-dB value would be required for long-distance point-to-point optical links.
Source Title: Conference Record - International Conference on Communications
URI: http://scholarbank.nus.edu.sg/handle/10635/72841
ISSN: 05361486
Appears in Collections:Staff Publications

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