公开(公告)号：US12191627B2

公开(公告)日：2025-01-07

申请号：US17397020

申请日：2021-08-09

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Kazuki Yamaoka ,  Maiko Ariga ,  Yusuke Inaba

IPC: H01S5/0239 ,  H01S5/02218 ,  H01S5/02253

Abstract: An optical module includes: an optical functional element outputting a first light beam; a first optical part receiving the first light beam, having a predetermined effect on the first light beam, and outputting the affected first light beam as a second light beam; a second optical part receiving the second light beam, having a predetermined effect on the second light beam, outputting the affected second light beam as a third light beam, and reflecting a reflected light beam in a direction not coupled to the first optical part, the reflected light beam being generated from the second light on an incident surface on which the second light beam is incident; a housing accommodating the optical functional element, the first optical part, and the second optical part; and an optical attenuator provided inside the housing and attenuating power of the reflected light beam incident on the optical attenuator.

公开(公告)号：US11903125B2

公开(公告)日：2024-02-13

申请号：US17478030

申请日：2021-09-17

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Maiko Ariga ,  Yusuke Inaba ,  Kazuki Yamaoka ,  Atsushi Izawa ,  Kazuya Nagashima

IPC: H05K1/02 ,  H01S5/02218

CPC classification number: H05K1/028 ,  H01S5/02218 ,  H05K1/0274 ,  H05K2201/10121

Abstract: An optical module includes a box-shaped housing with an optical element mounted therein. Further, a wiring substrate is bonded to a part of a surface of a housing part of the housing, and an electric wiring, which is formed in the wiring substrate or on a surface of the wiring substrate, and an electric wiring, which is introduced into the housing part or onto a surface of the housing part, are electrically connected to each other.

公开(公告)号：US10670819B2

公开(公告)日：2020-06-02

申请号：US16051935

申请日：2018-08-01

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Masakazu Miura ,  Jun Miyokawa ,  Kazuki Yamaoka ,  Hajime Mori

IPC: G02B6/42 ,  G02B6/26 ,  H01S5/022 ,  H01S5/0683 ,  H01S5/024

Abstract: A non-plated region is formed in a certain range from an end of a submount. The non-plated region is a portion where a plating layer is not provided, and thus a substrate of the submount is exposed. An intermediate layer is formed on the plating layer. Furthermore, a plating layer is formed on the intermediate layer. A semiconductor laser is formed on the plating layer. The position of an end of the semiconductor laser substantially coincides with the position of an end of the plating layer (the intermediate layer). That is, even in a case where there is a deviation between an end face of the intermediate layer and an end face of the semiconductor laser, the amount of this deviation is sufficiently smaller than the amount by which the intermediate layer is set back from an end face of the submount.

公开(公告)号：US10566761B2

公开(公告)日：2020-02-18

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: G02B6/42 ,  H01S5/022 ,  H01S5/024

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：US10551576B2

公开(公告)日：2020-02-04

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: G02B6/00 ,  G02B6/42 ,  G02B6/27 ,  G02F1/01 ,  G02B6/38

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°.