摘要
垂直腔面发射激光器(VCSEL)具有低阈值电流、圆形光斑、高调制带宽、易于单纵模激射以及高密度二维光集成等优势。在实际应用中,单横模VCSEL是光通信、高速局域网、光互连等许多应用领域的理想光源。在分析VCSEL的结构特性和模式特性的基础上,详述了单横模VCSEL近年来取得的重要进展,分析了各种单横模技术的优势与不足,概述了器件广阔的应用前景及仍待解决的问题。
The main advantages of vertical cavity surface emitting lasers （VCSELs） are low threshold current, a circular output-beam profile, high modulation bandwidth, single-longitudinal-mode operation and easy two- dimensional integration with high density. A single transverse mode VCSEL is considered to be a desired light source for optical communication, high-speed local-area networks, and optical interconnect. Mter analysing structural and modal features of a VCSEL, important progress of single transverse mode VCSELs is presented and discussed. Finally, prospect and problems of future research are presented.
出处
《激光与光电子学进展》
CSCD
北大核心
2013年第10期19-24,共6页
Laser & Optoelectronics Progress
基金
国家自然科学基金(61076038)
吉林省自然科学基金(201215134)
关键词
激光器
半导体激光器
垂直腔面发射激光器
单模
lasers
semiconductor laser
vertical cavity surface emitting laser
single mode
