公开(公告)号：US12027814B2

公开(公告)日：2024-07-02

申请号：US17823569

申请日：2022-08-31

Applicant: National Institutes for Quantum Science and Technology

Inventor： Yutaka Akahane ,  Makoto Aoyama ,  Kanade Ogawa ,  Koichi Yamakawa

IPC: H01S3/094 ,  H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/08045 ,  H01S3/0805 ,  H01S3/0941 ,  H01S3/113 ,  H01S3/16 ,  H01S5/00 ,  H01S3/00

CPC classification number: H01S5/005 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/0627 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/113 ,  H01S3/1618 ,  H01S3/1643 ,  H01S3/0057 ,  H01S3/0092 ,  H01S3/042 ,  H01S3/08045 ,  H01S3/0805

Abstract: Provided is a laser device in which: a laser medium doped with ytterbium emits light upon absorption of excitation light; the light emitted by the laser medium is amplified to obtain output light; and the output light is outputted in the form of a plurality of pulses. In the laser device, a spatial filter is disposed in the optical path of the light emitted by the laser medium or is disposed in the optical path of the output light outputted from an optical resonator, the spatial filter being configured to filter out a portion of the light or of the output light around the optical axis.