Title:
OPTICAL MODULATOR
Document Type and Number:
WIPO Patent Application WO/2024/029011
Kind Code:
A1
Abstract:
Provided is an optical modulator capable of suppressing spreading of light caused by a mirror that converts an optical path and of increasing connection efficiency with an external optical component. An optical modulator (10) comprising a laminate substrate having a lower clad layer (12), a core layer (13), and upper clad layers (14, 15) stacked in the stated order on a substrate (11) is provided with: an optical waveguide that includes a core (13) formed from the core layer (13) and that has waveguide end surfaces in grooves (41, 42) formed in the laminate substrate; mirrors (43a, 44a) that are formed on slopes facing the waveguide end surfaces and that convert optical paths in the vertical direction of the substrate; and insulation films (18a, 18b) that insulate ground electrodes (62a-62c) and signal electrodes (61a, 61b) provided near the optical waveguide, and fill gaps between the waveguide end surfaces and the mirrors (43a, 44a).
Inventors:
SAITO YUSUKE (JP)
UEDA YUTA (JP)
ISHIKAWA MITSUTERU (JP)
UEDA YUTA (JP)
ISHIKAWA MITSUTERU (JP)
Application Number:
PCT/JP2022/029859
Publication Date:
February 08, 2024
Filing Date:
August 03, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G02F1/025
Domestic Patent References:
| WO2020246042A1 | 2020-12-10 | |||
| WO2008126653A1 | 2008-10-23 | |||
| WO2017085934A1 | 2017-05-26 |
Foreign References:
| US20180106954A1 | 2018-04-19 | |||
| JP2008139465A | 2008-06-19 | |||
| JP2016018147A | 2016-02-01 | |||
| JP2016102883A | 2016-06-02 | |||
| US20200132947A1 | 2020-04-30 | |||
| JP2017016020A | 2017-01-19 |
Attorney, Agent or Firm:
TANI & ABE, P.C. (JP)
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