Invention Grant
- Patent Title: Method, system and apparatus for higher order mode suppression
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Application No.: US15796355Application Date: 2017-10-27
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Publication No.: US10777968B2Publication Date: 2020-09-15
- Inventor: Manoj Kanskar , Zhigang Chen
- Applicant: nLIGHT, Inc.
- Applicant Address: US WA Vancouver
- Assignee: NLIGHT, INC.
- Current Assignee: NLIGHT, INC.
- Current Assignee Address: US WA Vancouver
- Agent Michelle Craig
- Main IPC: H01S5/065
- IPC: H01S5/065 ; H01S5/20 ; H01S5/10 ; H01S5/042 ; H01S5/026 ; H01S5/028 ; H01S5/12 ; H01S5/22 ; H01S5/34

Abstract:
A laser diode vertical epitaxial structure, comprising a transverse waveguide comprising an active layer between an n-type semiconductor layer and a p-type semiconductor layer wherein the transverse waveguide is bounded by a lower index n-cladding layer on an n-side of the transverse waveguide and a lower index p-cladding layer on a p-side of the transverse waveguide, a lateral waveguide that is orthogonal to the transverse waveguide, wherein the lateral waveguide is bounded in a longitudinal direction at a first end by a facet coated with a high reflector (HR) coating and at a second end by a facet coated with a partial reflector (PR) coating and a higher order mode suppression layer (HOMSL) disposed adjacent to at least one lateral side of the lateral waveguide and that extends in a longitudinal direction.
Public/Granted literature
- US20180123317A1 METHOD, SYSTEM AND APPARATUS FOR HIGHER ORDER MODE SUPPRESSION Public/Granted day:2018-05-03
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