提高大功率激光器与光纤耦合效率的新型光腔  

A Novel Cavity of High-power Laser Diode Enhancing Coupling Efficiency with Optical Fibers

作　　者：于海鹰[1] 崔碧峰[1] 田增霞[1] 陈依新[1] 邹德恕[1] 刘莹[1] 沈光地[1] 

机构地区：[1]北京工业大学北京光电子技术实验室

出　　处：《固体电子学研究与进展》2006年第4期494-497,共4页Research & Progress of SSE

基　　金：国家973计划(20000683-02);北京市教委项目(2002kj018);北工大博士启动基金(kz0204200387);北京市科委重点项目(D0404003040221)

摘　　要：提出并实现了一种新型多有源区隧道级联大光腔半导体激光器,增大了半导体激光器激射窗口的高度,得到低于20°的垂直发散角,从而显著提高了激光器与光纤的耦合效率。将其与多种形式和规格的透镜光纤进行测试,耦合效率可以提高30%以上。A novel high-power semiconductor laser diode （LD） with very large cavity using multi-active-layer cascaded by tunnel-junction was developed. The perpendicular window size of the LD was enlarged extremely and less than 20 degree of the lasing beam divergence was obtained, which benefits the coupling between the LD and the optical fibers. Many types of lensed fibers were used to test with the LD and the coupling efficiencies were increased over 30% comparing with the conventional LD.

关 键 词：半导体激光器 大光腔 光纤耦合 透镜光纤 

分 类 号：TN248.4[电子电信—物理电子学] TN253