公开(公告)号：US4013977A

公开(公告)日：1977-03-22

申请号：US612619

申请日：1975-09-11

申请人： Hermann W. Behrens ,  Gerhard L. Grohs ,  Charles L. Dailey

发明人： Hermann W. Behrens ,  Gerhard L. Grohs ,  Charles L. Dailey

IPC分类号： H01S3/034 ,  H01S3/095 ,  H01S3/02

CPC分类号： H01S3/095 ,  H01S3/0343

摘要： A low pressure gas laser is provided with an aerodynamic window for the generated high power laser beam. The window comprises a duct with an oblique opening located in the supersonic part of and aligned with the axis of a Laval nozzle, having an atmospheric entrance. This permits extraction of the beam from the laser without any contact through a solid window.