Analysis of the additional modulation of semiconductor lasers using optical heterodyne techniques

被引：1

作者：

Zhu, Ning Hua ^{[1
]}

Zhang, Bang Hong ^{[1
]}

Wen, Ji Min ^{[1
]}

Li, Hao ^{[1
]}

Li, Liang ^{[1
]}

Chen, Wei ^{[1
]}

Zhang, Yan ^{[1
]}

Xie, Liang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2008年 / 20卷 / 1-4期

基金：

中国国家自然科学基金;

关键词：

additional modulation; distributed feedback (DFB) laser; heterodyne technique; laser driver; thermal electric cooler (TEC) controller;

D O I：

10.1109/LPT.2007.912515

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：

In this letter, the power spectrum of a cooled distributed feedback laser module is measured using the self-heterodyne technique. Periodical oscillation peaks have been observed in the measurement. Further investigation shows that the additional modulation signal is coupled from the thermal electric cooler (TEC) controller to the laser driver, and then applied to the laser diode. The additional modulation can be eliminated by properly isolating the laser driving source from the TEC controller.

引用

页码：138 / 140

页数：3

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