公开(公告)号：US11271360B2

公开(公告)日：2022-03-08

申请号：US16731408

申请日：2019-12-31

Applicant: Gigaphoton Inc.

Inventor： Atsushi Fuchimukai ,  Osamu Wakabayashi ,  Yoichi Sasaki

IPC: H01S3/109 ,  H01S3/02 ,  H01S3/067 ,  H01S3/16 ,  H01S3/23

Abstract: A wavelength converter including: A. a crystal holder configured to hold a nonlinear crystal configured to convert a wavelength of a laser beam incident thereon and output the wavelength-converted laser beam; B. a first container configured to accommodate the crystal holder and include a light incident window so provided as to intersect an optical path of the laser beam incident on the nonlinear crystal and a light exiting window so provided as to intersect the optical path of the laser beam having exited out of the nonlinear crystal; C. a second container configured to accommodate the first container; D. a position adjusting mechanism configured to adjust at least a position of the first container; and E. an isolation mechanism configured to spatially isolate the light incident window and the light exiting window from the position adjusting mechanism.

公开(公告)号：US12113326B2

公开(公告)日：2024-10-08

申请号：US17817839

申请日：2022-08-05

Applicant: Gigaphoton Inc.

Inventor： Yoichi Sasaki ,  Kouji Kakizaki ,  Hakaru Mizoguchi

IPC: H01S3/036 ,  G03F7/20 ,  H01S3/038

CPC classification number: H01S3/036 ,  G03F7/2006 ,  H01S3/038

Abstract: A laser device according to an aspect of the present disclosure includes a chamber into which laser gas is introduced; a pair of electrodes arranged in the chamber; a power source configured to apply a voltage between the electrodes; a nozzle structure which includes an internal passage for receiving the laser gas and a slit connected to the internal passage and is configured to generate flow of the laser gas between the electrodes due to the laser gas blowing out from the slit; a gas flow path which has a suction port through which the laser gas in the chamber is suctioned and introduces, to the nozzle structure, the laser gas suctioned through the suction port; and a blower device configured to cause the laser gas to blow toward the internal passage of the nozzle structure through the gas flow path.