A Novel Multisection Distributed Feedback Laser with Varied Ridge Width for Self-Pulsation Generation  

作　　者：万钦 孙长征 熊兵 王健 罗毅 

机构地区：[1]State Key Laboratory on Integrated Optoelectronics, Department of Electronic Engineering, Tsinghua University, Beijing 100084

出　　处：《Chinese Physics Letters》2006年第10期2753-2755,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 60536020 and 60390074）.

摘　　要：A novel ridge-waveguide multisection （MS） distributed feedback （DFB） laser, which consists of two identical DFB sections but different ridge widths, is proposed to generate beating-type self-pulsations （SPs）. The spatiotemporal dynamic response of such a multisection DFB laser is calculated based on a large-signal travelling-wave model. Self-pulsating output at about 150GHz is predicted, and evidences for the beating mechanism of the SPs are provided. To the best of our knowledge, this is the first report on SP generated by MS-DFB lasers with varied ridge width. Compared to other alternatives, such devices are much easier to implement and also enjoy the advantages of lower cost and higher design freedom.A novel ridge-waveguide multisection （MS） distributed feedback （DFB） laser, which consists of two identical DFB sections but different ridge widths, is proposed to generate beating-type self-pulsations （SPs）. The spatiotemporal dynamic response of such a multisection DFB laser is calculated based on a large-signal travelling-wave model. Self-pulsating output at about 150GHz is predicted, and evidences for the beating mechanism of the SPs are provided. To the best of our knowledge, this is the first report on SP generated by MS-DFB lasers with varied ridge width. Compared to other alternatives, such devices are much easier to implement and also enjoy the advantages of lower cost and higher design freedom.

关 键 词：DFB LASERS DESIGN 

分 类 号：TN24[电子电信—物理电子学]