Comparison of effective α-parameters for semiconductor Mach-Zehnder optical modulators

被引：16

作者：

Cartledge, JC ^{[1
]}

机构：

[1] Queens Univ, Dept Elect & Comp Engn, Kingston, ON K7L 3N6, Canada

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1998年 / 16卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

fiber-optic transmission; modulator chirp; semiconductor Mach-Zehnder optical modulator;

D O I：

10.1109/50.661363

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：

The small-signal alpha-parameter of a semiconductor Mach-Zehnder modulator depends on the device design and on the bias and modulation voltages applied to the two independent drive electrodes. In particular, for the range of applied voltages which correspond to switching the modulator from the off state to the on state, the alpha-parameter varies significantly. Effective, large-signal alpha-parameters provide a convenient and concise description of the modulator chirp. For a multiple quantum well Mach-Zehnder modulator, a comparison is made between four effective alpha-parameters; a transmission performance alpha-parameter, an on/off alpha-parameter, a 3 dB alpha-parameter and a chirp alpha-parameter. Both conventional and phase-shifted modulators are considered.

引用

页码：372 / 379

页数：8

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