Square microcavity semiconductor lasers  

作　　者：Yuede Yang Haizhong Weng Youzeng Hao  Jinlong Xiao Yongzhen Huang 杨跃德;翁海中;郝友增;肖金龙;黄永箴(State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors & College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences, Chinese Academy of Sciences)

机构地区：State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors ＆ College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100083, China

出　　处：《Chinese Physics B》2018年第11期176-185,共10页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.61527823 and 61377105)

摘　　要：Square microcavities, which support whispering-gallery modes with total internal reflections, can be employed as high-quality laser resonators for fabricating compact, low-threshold semiconductor lasers. In this paper, we review the recent progress of square microcavity semiconductor lasers. The characteristics of confined optical modes in the square microcavities are introduced briefly. Based on the mode properties of the square microcavities, dual-mode lasers with tunable wavelength intervals are realized for generating microwave signals. Furthermore, deformed square microcavity lasers with the sidewalls replaced by circular sides are proposed and experimentally demonstrated to enhance the mode confinement and increase the dual-mode interval to the THz range. In order to further reduce the device size, metal-confined wavelength-scale square cavity lasers are also demonstrated.Square microcavities, which support whispering-gallery modes with total internal reflections, can be employed as high-quality laser resonators for fabricating compact, low-threshold semiconductor lasers. In this paper, we review the recent progress of square microcavity semiconductor lasers. The characteristics of confined optical modes in the square microcavities are introduced briefly. Based on the mode properties of the square microcavities, dual-mode lasers with tunable wavelength intervals are realized for generating microwave signals. Furthermore, deformed square microcavity lasers with the sidewalls replaced by circular sides are proposed and experimentally demonstrated to enhance the mode confinement and increase the dual-mode interval to the THz range. In order to further reduce the device size, metal-confined wavelength-scale square cavity lasers are also demonstrated.

关 键 词：square microcavity whispering-gallery modes semiconductor lasers 

分 类 号：O4[理学—物理]