Optical microwave generation using two parallel DFB lasers integrated with Y-branch waveguide coupler  

作　　者：谢红云 王路 赵玲娟 朱洪亮 王圩 

机构地区：[1]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100022, China [2]National Research Center of Optoelectronic Technology, Institute of Semiconductors Chinese Academy of Sciences, Beijing 100083, China

出　　处：《Chinese Physics B》2007年第5期1459-1463,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China （Grant No 90401025）. Acknowledgments The authors are grateful to the Multiple-function 0ptoelectronic Integration group, Institute of Semiconductors, CAS for sponsoring this project. We extend our thanks to Professor Wang Zi-Yu of Peking University for microwave signal testing.

摘　　要：A new device of two parallel distributed feedback （DFB） lasers integrated monolithically with Y-branch waveguide coupler was fabricated by means of quantum well intermixing. Optical microwave signal was generated in the Y-branch waveguide coupler through frequency beating of the two laser modes coming from two DFB laser in parallel, which had a small difference in frequency. Continuous rapid tuning of optical microwave signal from 13 to 42 GHz were realized by adjusting independently the driving currents injected into the two DFB lasers.A new device of two parallel distributed feedback （DFB） lasers integrated monolithically with Y-branch waveguide coupler was fabricated by means of quantum well intermixing. Optical microwave signal was generated in the Y-branch waveguide coupler through frequency beating of the two laser modes coming from two DFB laser in parallel, which had a small difference in frequency. Continuous rapid tuning of optical microwave signal from 13 to 42 GHz were realized by adjusting independently the driving currents injected into the two DFB lasers.

关 键 词：optical microwave generation distributed feedback laser Y-BRANCH BEAT-FREQUENCY 

分 类 号：TN248.4[电子电信—物理电子学]