Invention Application
- Patent Title: SEMICONDUCTOR LASER
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Application No.: US15752442Application Date: 2016-09-27
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Publication No.: US20190013649A1Publication Date: 2019-01-10
- Inventor: Clemens Vierheilig , Andreas Löffler
- Applicant: OSRAM Opto Semiconductors GmbH
- Applicant Address: DE Regensburg
- Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee Address: DE Regensburg
- Priority: DE102015116336.5 20150928
- International Application: PCT/EP2016/073003 WO 20160927
- Main IPC: H01S5/323
- IPC: H01S5/323 ; H01S5/028 ; H01S5/10 ; H01S5/22

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
- US10333278B2 Semiconductor laser Public/Granted day:2019-06-25
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