Title:
LIGHT-RECEIVING DEVICE AND RECEIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/149334
Kind Code:
A1
Abstract:
In order to achieve efficient reception of a spatial optical signal, provided is a light-receiving device comprising: a substrate which transmits light in the wavelength range of a spatial optical signal to be received; an optical antenna which is disposed on a first surface of the substrate, which receives the spatial optical signal, which optically guides signal light derived from the spatial optical signal along the in-plane direction of the substrate toward an output end, and which outputs the signal light from the output end toward the substrate; and a light-receiving element which is disposed such that a light-receiving surface faces a second surface of the substrate opposite from the first surface, and which receives, at the light-receiving surface, the signal light output from the optical antenna.
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Inventors:
TAKATA KOYA (JP)
MIZUMOTO HISASHI (JP)
OKUMURA FUJIO (JP)
MIZUMOTO HISASHI (JP)
OKUMURA FUJIO (JP)
Application Number:
PCT/JP2021/039349
Publication Date:
July 14, 2022
Filing Date:
October 25, 2021
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B10/11; G01J1/02; G01J1/04; H01L31/0232; H04B10/67
Domestic Patent References:
| WO2019123552A1 | 2019-06-27 |
Foreign References:
| JP2008016967A | 2008-01-24 | |||
| JP2005017489A | 2005-01-20 | |||
| US20180364336A1 | 2018-12-20 | |||
| US7421163B1 | 2008-09-02 |
Attorney, Agent or Firm:
KITAJIMA Hiroshi et al. (JP)
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