Title:
SURFACE EMITTING LASER DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/226108
Kind Code:
A1
Abstract:
A surface emitting laser device according to the present invention comprises: a semiconductor layer having a main surface; and a light-emitting unit that is formed by a groove formed in the main surface of the semiconductor layer, and that emits light towards a normal vector direction of the main surface. The light-emitting unit comprises: a first light-emitting unit that emits light of a single mode; and a second light-emitting unit that emits light of a multi-mode. In the surface emitting laser device, a plurality of the first light-emitting units are arranged at roughly a center part of the main surface of the semiconductor layer, and a plurality of the second light-emitting units may surround the plurality of first light-emitting units.
Inventors:
YAMAMOTO MASASHI (JP)
TAKAMIZU DAIJU (JP)
TAKAMIZU DAIJU (JP)
Application Number:
PCT/JP2020/018155
Publication Date:
November 12, 2020
Filing Date:
April 28, 2020
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
H01S5/42; H01S5/183
Domestic Patent References:
| WO2018230230A1 | 2018-12-20 | |||
| WO2013060535A1 | 2013-05-02 |
Foreign References:
| JP2006162739A | 2006-06-22 | |||
| JP2008172002A | 2008-07-24 | |||
| US5831960A | 1998-11-03 | |||
| JP2010103498A | 2010-05-06 | |||
| JP2001210908A | 2001-08-03 | |||
| JP2006278572A | 2006-10-12 |
Attorney, Agent or Firm:
AI ASSOCIATION OF PATENT AND TRADEMARK ATTORNEYS (JP)
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