Invention Grant
- Patent Title: Vertical cavity surface emitting laser
-
Application No.: US16570359Application Date: 2019-09-13
-
Publication No.: US10998696B2Publication Date: 2021-05-04
- Inventor: Natsumi Kaneko , Yutaka Onishi , Takeshi Aoki
- Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Applicant Address: JP Osaka
- Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Current Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Current Assignee Address: JP Osaka
- Agency: Smith, Gambrell & Russell, LLP.
- Priority: JPJP2018-177670 20180921,JPJP2019-121272 20190628
- Main IPC: H01S5/183
- IPC: H01S5/183 ; H01S5/343 ; H01S5/30

Abstract:
A vertical cavity surface emitting laser includes a first laminate including first semiconductor layers having a first Al composition, and second semiconductor layers having a second Al composition greater than the first Al composition; a current confinement structure including a current aperture and a current blocker; a first compound semiconductor layer adjacent to the current confinement structure; and a second compound semiconductor layer adjacent to the first laminate and the first compound semiconductor layer. The first compound semiconductor layer has a first aluminum profile changing monotonously in a direction from the first laminate to the current confinement structure from a first minimum Al composition within a range greater than the first Al composition and smaller than the second Al composition to a first maximum Al composition. The second compound semiconductor layer has an Al composition greater than the first Al composition and smaller than the first maximum Al composition.
Public/Granted literature
- US20200099195A1 VERTICAL CAVITY SURFACE EMITTING LASER Public/Granted day:2020-03-26
Information query