Invention Grant
- Patent Title: Laser module and laser system
-
Application No.: US16756423Application Date: 2018-12-13
-
Publication No.: US11451011B2Publication Date: 2022-09-20
- Inventor: Yohei Kasai
- Applicant: FUJIKURA LTD.
- Applicant Address: JP Tokyo
- Assignee: FUJIKURA LTD.
- Current Assignee: FUJIKURA LTD.
- Current Assignee Address: JP Tokyo
- Agency: Osha Bergman Watanabe & Burton LLP
- Priority: JPJP2017-246939 20171222
- International Application: PCT/JP2018/045828 WO 20181213
- International Announcement: WO2019/124204 WO 20190627
- Main IPC: H04B10/00
- IPC: H04B10/00 ; H01S5/40 ; G02B6/42 ; H01S5/02326 ; H01S5/02251 ; H01S5/00

Abstract:
A laser module includes: an optical fiber; a plurality of semiconductor laser devices that includes a first semiconductor laser device and a second semiconductor laser device; a condenser lens that condenses laser beams emitted from the plurality of semiconductor laser devices and optically couples the laser beams to the optical fiber; a first terminal that supplies a first drive current to the first semiconductor laser device; and a second terminal that supplies a second drive current that to the second semiconductor laser device. The second drive current is smaller than the first drive current.
Public/Granted literature
- US20200251880A1 LASER MODULE AND LASER SYSTEM Public/Granted day:2020-08-06
Information query