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公开(公告)号:US20190229490A1
公开(公告)日:2019-07-25
申请号:US16308085
申请日:2017-06-08
IPC分类号: H01S3/115 , C09K11/77 , H01S3/11 , H01S3/106 , G02F1/141 , H01S3/067 , H01S3/17 , H01S3/16 , H01S3/08 , H01S3/10 , H01S3/105
摘要: A voltage-controllable output coupler for a laser, comprising: a liquid crystal cell that provides a change in birefringence in response to an applied voltage; and a polariser oriented with respect to the liquid crystal cell to collectively form a variable reflectance mirror for the laser; wherein output coupling of the laser is controllable by applying voltage to the liquid crystal cell for a switching interval to switch the variable reflectance mirror from high reflectance to low reflectance, and vice versa, thus actively Q-switching or cavity dumping the laser.