Chinese Optics Letters, 2010, 8 (8): 773, Published Online: Aug. 12, 2010
VCSEL with reticular electrode and larger emitting aperture and its optoelectronic characteristics Download: 527次
垂直腔面发射半导体激光器 网状注入电极 近场发光均匀性 发射光强 光电转换效率 140.0140 Lasers and laser optics 140.7260 Vertical cavity surface emitting lasers 250.7260 Vertical cavity surface emitting lasers 140.5960 Semiconductor lasers
Abstract
The enlargement of the emitting aperture is usually one of the important methods of increasing verticalcavity 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.
Yuan Feng, Lifeng Hou, Yongqin Hao, Changling Yan, Yingjie Zhao, Yuxia Wang, Jingchang Zhong. VCSEL with reticular electrode and larger emitting aperture and its optoelectronic characteristics[J]. Chinese Optics Letters, 2010, 8(8): 773.