| 半导体相移分布反馈激光器模式及调制相应特性的研究--牛顿-矢量方法的应用 |
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| 引用本文： | 张冶金,朱林,高志国,陈明华,董毅,陈维友,刘式墉,谢世钟.半导体相移分布反馈激光器模式及调制相应特性的研究--牛顿-矢量方法的应用[J].半导体学报,2002,23(9). |
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| 作者姓名： | 张冶金 朱林 高志国 陈明华 董毅 陈维友 刘式墉 谢世钟 |
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| 作者单位： | 1. 清华大学电子工程系,北京,100084
2. 吉林大学电子工程系,长春,130023 |
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| 摘 要： | 给出了适于分析DFB激光器稳态特性的数值模型和分析振幅及频率调制响应特性的解析模型.研究了3相移DFB激光器的调制响应特性,并提出了一种能够快速精确得到DFB激光器多个模式解的新方法--矢量牛顿法.该方法将稳定的矢量法与精确的牛顿法结合,保证了求解质量.实践表明该方法非常适合于求解高度非线性方程的多解问题.用此方法,研究了3相移及简单DFB激光器的纵向光子浓度分布,纵模及调制响应特性.结果表明,3相移DFB具有与简单的DFB激光器同样好的调制响应特性,相移的引入在一定程度上抑制了纵向空间烧孔效应,并且有利于DFB激光器的单模输出.
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| 关 键 词： | 相移 DFB 矢量 单模 纵向空间烧孔效应 调制响应 |
Investigation of Mode and Modulation Responses in Semiconductor PS-DFB Lasers:Use of a Vector-Newton Method |
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| Zhang Yejin,Zhu Lin,Gao Zhiguo,Chen Minghua,Dong Yi,Chen Weiyou,Liu Shiyong,Xie Shizhong.Investigation of Mode and Modulation Responses in Semiconductor PS-DFB Lasers:Use of a Vector-Newton Method[J].Chinese Journal of Semiconductors,2002,23(9). |
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| Authors: | Zhang Yejin Zhu Lin Gao Zhiguo Chen Minghua Dong Yi Chen Weiyou Liu Shiyong Xie Shizhong |
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| Abstract: | A numerical model for steady state analysis and analytical expressions for the AM and FM modulation responses of DFB lasers are presented.The small signal modulation responses of 3 phase shift(PS) DFB is investigated for the first time.A new method(Vector-Newton method) to obtain multiple-longitudinal-mode of DFB lasers is used.It is demonstrated that this method is suitable for obtaining multiple-solution of high nonlinear equations.Longitudinal photon density distribution and multiple-longitudinal-mode of 3PS-DFB and simple-DFB lasers are analyzed.The results show that modulation response characteristics of 3PS-DFB laser is as good as that of DFB,and PS can weaken the longitudinal spatial hole-burning (LHSB) effect and is in favor of single longitudinal mode operating of lasers. |
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| Keywords: | phase shift DFB vector single mode LHSB modulation response |
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