Invention Grant
- Patent Title: Optical device, method of manufacturing the same, and laser module
- Patent Title (中): 光学装置及其制造方法以及激光模块
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Application No.: US13963620Application Date: 2013-08-09
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Publication No.: US09025633B2Publication Date: 2015-05-05
- Inventor: Kouhei Kinugawa , Hidehiro Taniguchi
- Applicant: Furukawa Electric Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: Furukawa Electric Co., Ltd.
- Current Assignee: Furukawa Electric Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2011-132431 20110614; JP2011-132473 20110614
- Main IPC: H01S5/00
- IPC: H01S5/00 ; H01S5/20 ; H01S5/22 ; H01S5/042 ; B82Y20/00 ; H01S5/022 ; H01S5/024 ; H01S5/028 ; H01S5/16 ; H01S5/343 ; H01S5/02
Abstract:
An optical device includes a ridge semiconductor laser element formed on a substrate, a first insulating film coating a lateral wall portion of a ridge structure of the ridge semiconductor laser element, and a second insulating film coating the ridge structure from above the first insulating film in an end portion region of the ridge structure. The second insulating film has a density lower than a density of the first insulating film.
Public/Granted literature
- US20130322477A1 OPTICAL DEVICE, METHOD OF MANUFACTURING THE SAME, AND LASER MODULE Public/Granted day:2013-12-05
Information query
