VCSEL with reticular electrode and larger emitting aperture and its optoelectronic characteristics  

作　　者：冯源 侯立峰 郝永芹 晏长岭 赵英杰 王玉霞 钟景昌 

机构地区：[1]National Key Laboratory on High Power Semiconductor Lasers,Changchun University of Science and Technology

出　　处：《Chinese Optics Letters》2010年第8期773-775,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant No.60676025

摘　　要：The enlargement of the emitting aperture is usually one of the important methods of increasing vertical- cavity surface-emitting laser （VCSEL） optical output power. However, in a VCSEL with a larger aperture, the inhomogeneity in the injected current often causes inhomogeneous or even no emission. To solve this problem and to increase VCSEL output power, as well as to improve its thermal characteristics, we develop a new type of injected VCSEL with a larger aperture and a reticular electrode, where the conventional circular injection electrode of the P side is turned into a reticular one, and the heat sink is on the N side. The tests of the new VCSEL show an improvement in homogeneity in not only the injected current but also the emission intensity. The optical output power is also considerably increased, and the device optoelectronic performance is improved.The enlargement of the emitting aperture is usually one of the important methods of increasing vertical- cavity surface-emitting laser （VCSEL） optical output power. However, in a VCSEL with a larger aperture, the inhomogeneity in the injected current often causes inhomogeneous or even no emission. To solve this problem and to increase VCSEL output power, as well as to improve its thermal characteristics, we develop a new type of injected VCSEL with a larger aperture and a reticular electrode, where the conventional circular injection electrode of the P side is turned into a reticular one, and the heat sink is on the N side. The tests of the new VCSEL show an improvement in homogeneity in not only the injected current but also the emission intensity. The optical output power is also considerably increased, and the device optoelectronic performance is improved.

关 键 词：LASERS 

分 类 号：TN248.4[电子电信—物理电子学]