Offset quantum-well method for tunable distributed Bragg reflector lasers and electro-absorption modulated distributed feedback lasers  

作　　者：阚强 丁颖 赵玲娟 朱洪亮 周帆 王鲁峰 王宝军 王圩 

机构地区：[1]National Research Center for Optoelectronic Technology, Institute of Semiconductors, Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2005年第8期455-456,共2页中国光学快报（英文版）

基　　金：This work was supported by the National "863" Pro-gram of China under Grant No. 2002AA312150 and2001AA312050

摘　　要：A two-section offset quantum-well structure tunable laser with a tuning range of 7 nm was fabricated using offset quantum-well inethod. The distributed Bragg reflector （DBR） was realized just by selectively wet etching the multiquantum-well （MQW） layer above the quaternary lower waveguide. A threshold current of 32 mA and an output power of 9 mW at 100 mA were achieved. Furthermore, with this offset structure method, a distributed feedback （DFB） laser was integrated with an electro-absorption modulator （EAM）, which was capable of producing 20 dB of optical extinction.A two-section offset quantum-well structure tunable laser with a tuning range of 7 nm was fabricated using offset quantum-well inethod. The distributed Bragg reflector （DBR） was realized just by selectively wet etching the multiquantum-well （MQW） layer above the quaternary lower waveguide. A threshold current of 32 mA and an output power of 9 mW at 100 mA were achieved. Furthermore, with this offset structure method, a distributed feedback （DFB） laser was integrated with an electro-absorption modulator （EAM）, which was capable of producing 20 dB of optical extinction.

关 键 词：Fiber Bragg gratings Light extinction Light modulators Optical waveguides Quantum well lasers 

分 类 号：O431.2[机械工程—光学工程]