TEMPERATURE-DEPENDENCE OF MODE DISTRIBUTION, INTENSITY NOISE, AND MODE-PARTITION NOISE IN SUBCARRIER MULTIPLEXED TRANSMISSION-SYSTEMS

被引：6
|
作者：
MESLENER, GJ
机构：
[1] GTE Laboratories Inc., Waltham, MA
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1992年 / 4卷 / 08期
关键词：
D O I：
10.1109/68.149916
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Low-frequency intensity noise generated by Fabry-Perot lasers, which is frequency translated inband by subcarrier modulation and enhanced by dispersion, limits transmission of video signals in subcarrier multiplexed systems. This noise is highly dependent on mode distribution and varies dramatically with temperature. A correlation between low-frequency intensity noise, frequency translated intensity noise, mode-partition noise, and mode distribution is demonstrated. Mode distributions are identified which yield very low- or very high-levels of noise. Tight control of laser temperature and bias current is required to maintain minimum noise levels in subcarrier transmission systems.
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页码：939 / 941
页数：3
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