公开(公告)号：US20180138657A1

公开(公告)日：2018-05-17

申请号：US15867833

申请日：2018-01-11

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Masakazu MIURA ,  Jun MIYOKAWA ,  Kazuki YAMAOKA ,  Toshio KIMURA

IPC: H01S5/022 ,  H01S5/024 ,  G02B6/32 ,  G02B6/42

Abstract: A semiconductor laser module includes a semiconductor laser that outputs laser light; an optical fiber that guides the laser light; a lens that couples the laser light, which is output from the semiconductor laser, with the optical fiber; a base that is substantially tabular in shape and that has the semiconductor laser, the optical fiber, and the lens fixed thereon either directly or indirectly; and a housing which houses the base and fixes the base either directly or indirectly. Among faces of the base, a face on a side that is fixed either directly or indirectly to the housing includes a junction plane that is joined to the housing either directly or indirectly, and a detachment plane that is detached to remain unfixed from the housing.

公开(公告)号：US20240106189A1

公开(公告)日：2024-03-28

申请号：US18534857

申请日：2023-12-11

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Yasumasa KAWAKITA ,  Masakazu MIURA ,  Hirotatsu ISHII ,  Tetsuya TAKEUCHI

IPC: H01S5/023 ,  H01S5/02345

CPC classification number: H01S5/023 ,  H01S5/02345

Abstract: A chip on submount includes: a submount including a first surface directed in a first direction; a covering layer mounted on the first surface, extending to intersect the first direction, and including a second surface directed in the first direction; a laser element mounted on the second surface and including: a third surface directed in the first direction; and a light emission unit positioned at an intermediate portion of the laser element along a second direction intersecting the first direction, extending in a third direction intersecting the first direction and second direction, and configured to output laser light in the third direction; and a bonding wire attached onto the third surface and configured to exert a pressing force on the laser element, the pressing force including a component force directed in a direction opposite to the first direction.

公开(公告)号：US20170139161A1

公开(公告)日：2017-05-18

申请号：US15416619

申请日：2017-01-26

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Kazuki YAMAOKA ,  Jun MIYOKAWA ,  Masakazu MIURA ,  Toshio KIMURA

IPC: G02B6/42 ,  G02B6/27 ,  G02F1/01

Abstract: An optical fiber fixing structure includes: a cylindrical member; an optical fiber inserted into a hole of the cylindrical member; and a fixing material configured to fix the cylindrical member and the optical fiber, wherein the optical fiber is a polarization maintaining optical fiber having a polarization axis, and a center of the optical fiber is arranged so as to be eccentric to a center of the hole, and an angle formed by an eccentric direction connecting the center of the hole and the center of the optical fiber and the polarization axis is −22.5° to 22.5°, or 67.5° to 112.5°.