发明授权
- 专利标题： Vertical-cavity surface-emitting laser, module, optical transmission device, free space optical communication device, optical transmission system, and free space optical communication system
- 专利标题（中）： 垂直腔表面发射激光器，模块，光传输装置，自由空间光通信装置，光传输系统和自由空间光通信系统
-
申请号： US12330118申请日： 2008-12-08
-
公开(公告)号： US07751459B2公开(公告)日： 2010-07-06
- 发明人: Masahiro Yoshikawa , Masateru Yamamoto , Takashi Kondo
- 申请人： Masahiro Yoshikawa , Masateru Yamamoto , Takashi Kondo
- 申请人地址： JP Tokyo
- 专利权人： Fuji Xerox Co., Ltd.
- 当前专利权人： Fuji Xerox Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Fildes & Outland, P.C.
- 优先权： JP2008-032251 20080213
- 主分类号： H01S5/00
- IPC分类号： H01S5/00
摘要：
Provided is a VCSEL that includes: a first semiconductor multilayer film reflective mirror of a first conductivity type formed on a substrate; an active region formed thereon; a current confining layer of a second conductivity type formed thereon; a second semiconductor multilayer film reflective mirror of the second conductivity type formed thereon; and a third semiconductor multilayer film reflective mirror of the second conductivity type formed thereon. The reflective mirrors include a pair of a high refractive index layer and a low refractive index layer. The impurity concentration of the second reflective mirror is higher than that of the third reflective mirror. The band gap energy of the high refractive index layer in the second reflective mirror is greater than the energy of the wavelength of a resonator formed of the first reflective mirror, the active region, the current confining layer, the second reflective mirror, and the third reflective mirror.
公开/授权文献
信息查询
