公开(公告)号：US20190280459A1

公开(公告)日：2019-09-12

申请号：US16422343

申请日：2019-05-24

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Yuta ISHIGE ,  Etsuji KATAYAMA ,  Atsushi OGURI ,  Hajime MORI

IPC: H01S5/022 ,  H01S5/00 ,  G02B6/42

Abstract: A laser device that is easily assembled and can be manufactured at low cost and a light-source device using the same are provided. The laser device includes a base plate portion, a semiconductor laser element placed on the base plate portion, a lid portion provided on the base plate portion, on which the semiconductor laser element is placed, and including a top plate, and a side wall portion covering a part or all of lateral sides of a space between the base plate portion and the top plate. The top plate is integrally formed with a part or all of the side wall portion.

公开(公告)号：US20240332891A1

公开(公告)日：2024-10-03

申请号：US18738132

申请日：2024-06-10

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Ayato OKADA ,  Atsushi OGURI ,  Masaya NAKAZUMI ,  Naoki HAYAMIZU

IPC: H01S5/026 ,  H01S5/02251 ,  H01S5/02253

CPC classification number: H01S5/0267 ,  H01S5/02253 ,  H01S5/02251

Abstract: An optical device includes: a first optical component configured to transmit light between a first end and a second end; a second optical component configured to either focus and couple the light to the first end or collimate the light emitted from the first end; and a transmissive component interposed between the first optical component and the second optical component and configured to transmit the light emitted from the first end or incident on the first end, and make a distance between the second optical component and the first end longer than in a case without the transmissive component.

公开(公告)号：US20190020178A1

公开(公告)日：2019-01-17

申请号：US16054462

申请日：2018-08-03

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Atsushi OGURI ,  Etsuji KATAYAMA ,  Yuta ISHIGE ,  Toshio KIMURA ,  Yutaka OHKI ,  Hajime MORI

IPC: H01S5/40 ,  H01S5/14 ,  H01S5/06 ,  H01S5/065 ,  H01S5/022

Abstract: A laser apparatus includes light source elements outputting laser beams; a wavelength-selecting element disposed in an optical path of each of the laser beams and configured to cause light in a predetermined wavelength band to selectively transmit therethrough; and a partially transmissive-reflector that receives the light transmitted through the wavelength-selecting element, reflects a part of the input light toward the wavelength-selecting element, and causes its remainder to transmit therethrough. The wavelength-selecting element causes a part of the respective laser beams output from the respective light source elements to selectively transmit therethrough, the partially transmissive-reflector reflects a part of the respective transmitted laser beams, and the wavelength-selecting element causes a part of the respective reflected laser beams to transmit to return to the light source elements, and each of the light source elements preferentially oscillates at a wavelength of the laser beam that transmits through the wavelength-selecting element.