INTERMODULATION DISTORTIONS OF BROAD-BAND MODULATED LASER-DIODES

被引:33
|
作者
HELMS, J [1 ]
机构
[1] TECH UNIV BERLIN,INST HOCHFREQUENZTECH,W-1000 BERLIN 10,GERMANY
关键词
D O I
10.1109/50.202844
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
For modulation frequencies with arbitrary frequency spacing the intermodulation distortions of laser diodes have been investigated both theoretically and experimentally. The second-order distortions only depend on the resulting intermodulation frequency, whereas for the third order distortions the position of each modulation frequency must be considered. With respect to subcarrier multiplexed (SCM) communication systems it was found out, that carriers with large frequency differences can increase the third-order intermodulation distortions up to 15 dB compared to those for closely spaced carriers.
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页码:1901 / 1906
页数:6
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