AN ELECTROOPTIC INTENSITY MODULATOR WITH IMPROVED LINEARITY

被引：51
|
作者：
FARWELL, ML
LIN, ZQ
WOOTEN, E
CHANG, WSC
机构：
[1] Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1991年 / 3卷 / 09期
关键词：
D O I：
10.1109/68.84495
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：
A highly linear electrooptic modulator has been designed, fabricated, and evaluated. The design of this modulator consists of only a simple modification to the directional coupler. Two-tone testing has demonstrated that, for an optical modulation depth of 30% per channel, the third-order intermodulation distortion is more than 30 dB lower than that of the conventional directional coupler or Mach-Zehnder modulators. This improvement was not observed to be accompanied by any increase in second harmonic distortion. Also included in this letter are results of two-tone computer simulations which predict the improvement in linearity of this device for a range of modulation depths.
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页码：792 / 795
页数：4
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