Title:
OPTICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/119364
Kind Code:
A1
Abstract:
This optical device comprises: a semiconductor layer (102) which is constituted by a group III-V compound semiconductor and which is formed on a cladding layer (101); and a light-receiving element (152) which is formed on the semiconductor layer (102) and which is for monitoring a semiconductor laser (151) and the oscillation light of the semiconductor laser (151). The following are constituted from the same group III-V compound semiconductor (InGaAsp): a first p-contact layer (106) and a first n-contact layer (107) of the semiconductor laser (151); and a second p-contact layer (114), a second n-contact layer (115), and a light absorbing layer (118) of the light receiving element (152).
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Inventors:
MAEDA YOSHIHO (JP)
TAKEDA KOJI (JP)
FUJII TAKURO (JP)
SEGAWA TORU (JP)
MATSUO SHINJI (JP)
TAKEDA KOJI (JP)
FUJII TAKURO (JP)
SEGAWA TORU (JP)
MATSUO SHINJI (JP)
Application Number:
PCT/JP2021/047029
Publication Date:
June 29, 2023
Filing Date:
December 20, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H01L31/10; H01L31/12; H01S5/026
Domestic Patent References:
| WO2021124441A1 | 2021-06-24 |
Foreign References:
| JP2019008179A | 2019-01-17 | |||
| JP2018046258A | 2018-03-22 | |||
| JP2018006590A | 2018-01-11 | |||
| JP2016162798A | 2016-09-05 | |||
| JP2015179749A | 2015-10-08 | |||
| JP2005072579A | 2005-03-17 | |||
| US5577064A | 1996-11-19 |
Attorney, Agent or Firm:
YAMAKAWA, Shigeki et al. (JP)
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