公开(公告)号：US11942751B2

公开(公告)日：2024-03-26

申请号：US18032403

申请日：2021-09-29

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takashi Kurita ,  Ryo Yoshimura ,  Ryo Makino ,  Yuu Takiguchi

IPC: H01S3/00 ,  B23K26/064 ,  G02F1/01 ,  G02F1/133 ,  G02F1/137

CPC classification number: H01S3/0085 ,  B23K26/064 ,  G02F1/0136 ,  G02F1/13318 ,  G02F1/137 ,  H01S3/0014

Abstract: Disclosed is a laser device including: a laser light source configured to emit laser light; a phase control unit configured to receive the laser light emitted from the laser light source, to control a spatial phase of a portion of the laser light, to emit the portion of the light as control light, and to emit another portion of the laser light as non-control light; a first optical system configured to irradiate an object with the control light emitted from the phase control unit; a detector configured to detect the non-control light emitted from the phase control unit; a second optical system configured to cause the non-control light emitted from the phase control unit to converge toward a detection surface of the detector.