%0 Journal Article
%T Optimal designs for high-power vertical cavity surface emitting lasers<br>高功率垂直腔面发射半导体激光器优化设计研究
%A Li Hui-Qing
%A Zhang Jie
%A Cui Da-Fu
%A Xu Zu-Yan
%A Ning Yong-Qiang
%A Yan Chang-Ling
%A Qin Li
%A Liu Yun
%A Wang Li-Jun
%A Cao Jian-Lin
%A <br>李惠青
%A 张杰
%A 崔大复
%A 许祖彦
%A 宁永强
%A 晏长岭
%A 秦莉
%A 刘云
%A 王立军
%A 曹健林
%J 物理学报
%D 2004
%I 
%X Vertical cavity surface emitting lasers (VCSEL's) lase in a single longitudin al mode, have a circularly symmetric output beam that can be very tightly focused, offer extremely high coupling efficiencies into optical fiber, and can be mas s produced in two-dimensional arrays relative to the conventional edge-emitting semi conductor laser. To obtain a high optical output power, besides enlarging of VCS EL's lasing area, the key points are proper number of quantum wells, homogeneous dist ribution of current density in the active layer and good thermal control. The dependenc e of VCSEL's performance on the number of quantum wells, the active diameter, th e thermal conductivity and the electric resistance of the material; and the dist ance between electri cal contacts are investigated. By optimizing the design parameters for a 980 nm In0.2Ga0.8As/GaAs VCSEL, a maximum continuous wave (cw) output power of 1.95 W at room temperature is obtained, which to our knowledge is the highest cw output power of any single VCSEL so far.
%K vertical cavity surface emitting lasers (VCSEL's)
%K quantum well
%K high
%K power<br>垂直腔面发射激光器（VCSEL），
%K 量子阱，
%K 高功率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=C14F4146809CFBAD&yid=D0E58B75BFD8E51C&vid=8E6AB9C3EBAAE921&iid=9CF7A0430CBB2DFD&sid=96683AE34DB660BD&eid=29AE32B30980BD5E&journal_id=1000-3290&journal_name=物理学报&referenced_num=3&reference_num=13