Invention Grant
- Patent Title: Semiconductor laser
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Application No.: US15752442Application Date: 2016-09-27
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Publication No.: US10333278B2Publication Date: 2019-06-25
- Inventor: Clemens Vierheilig , Andreas Löffler
- Applicant: OSRAM Opto Semiconductors GmbH
- Applicant Address: DE
- Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee Address: DE
- Agency: DLA Piper LLP (US)
- Priority: DE102015116336 20150928
- International Application: PCT/EP2016/073003 WO 20160927
- International Announcement: WO2017/055287 WO 20170406
- Main IPC: H01S5/323
- IPC: H01S5/323 ; H01S5/16 ; H01S5/028 ; H01S5/10 ; H01S5/22 ; H01S5/042

Abstract:
A semiconductor laser includes a semiconductor layer sequence having an n-conducting n-region, a p-conducting p-region and an intermediate active zone, an electrically conductive p-contact layer that impresses current directly into the p-region and is made of a transparent conductive oxide, and an electrically conductive and metallic p-contact structure located directly on the p-contact layer, wherein the semiconductor layer sequence includes two facets forming resonator end faces for the laser radiation, in at least one current-protection region directly on at least one of the facets a current impression into the p-region is suppressed, the p-contact structure terminates flush with the associated facet so that the p-contact structure does not protrude beyond the associated facet and vice versa, and the p-contact layer is removed from at least one of the current-protection regions and in this current-protection region the p-contact structure is in direct contact with the p-region over the whole area.
Public/Granted literature
- US20190013649A1 SEMICONDUCTOR LASER Public/Granted day:2019-01-10
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