发明授权
- 专利标题： Ridge type semiconductor laser of distributed feedback
- 专利标题（中）： Ridge型半导体激光器的分布式反馈
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申请号： US09819370申请日： 2001-03-28
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公开(公告)号： US06714571B2公开(公告)日： 2004-03-30
- 发明人: Yoshiaki Watanabe , Nong Chen , Kiyoshi Takei , Kiyofumi Chikuma
- 申请人： Yoshiaki Watanabe , Nong Chen , Kiyoshi Takei , Kiyofumi Chikuma
- 优先权： JP2000-091734 20000329
- 主分类号： H01S500
- IPC分类号： H01S500
摘要：
A semiconductor laser includes an active layer made of semiconductor; a ridge stripe having a cladding layer formed on the active layer and a contact layer formed on the cladding layer to protrude from the active layer; a pair of gratings each having a periodic structure in a longitudinal direction of the ridge stripe having a plurality of grooves each extending from side walls of the ridge stripe on flat portions in both sides of the ridge stripe; and absorbing layers covering the surfaces of the grooves of gratings to absorb excited light.
公开/授权文献
- US20010036213A1 Ridge type semiconductor laser of distributed feedback 公开/授权日：2001-11-01