公开(公告)号：EP0000267A1

公开(公告)日：1979-01-10

申请号：EP78300070.6

申请日：1978-06-22

申请人： THE POST OFFICE

发明人： Matthews, Michael Robert ,  Newman, David Henry ,  Smith, David Robert ,  Steventon, Alan Geoffrey

IPC分类号： H01S3/19 ,  H01S3/06

CPC分类号： H01S5/20 ,  H01S5/10 ,  H01S5/1032 ,  H01S5/14 ,  H01S5/2059

摘要： A double heterostructure semiconductor laser having the configuration of its optical cavity arranged to impose a constraint on the lasing filament as the spatial distribution of the lasing filament changes from that occuring at the start of the lasing regime, so that the optical flux emitted by the laser has self-saturating properties.
This protects the laser from catastrophic facet erosion and enables a simpler control circuit to be used to drive this laser when it is used as a light source for an optical communications system.

公开(公告)号：EP0000267B1

公开(公告)日：1981-07-08

申请号：EP78300070.6

申请日：1978-06-22

申请人： THE POST OFFICE

发明人： Matthews, Michael Robert ,  Newman, David Henry ,  Smith, David Robert ,  Steventon, Alan Geoffrey

IPC分类号： H01S3/19 ,  H01S3/06

CPC分类号： H01S5/20 ,  H01S5/10 ,  H01S5/1032 ,  H01S5/14 ,  H01S5/2059