Title:
グレーティングカプラ
Document Type and Number:
Japanese Patent JP6811448
Kind Code:
B2
Abstract:
A grating coupler includes a grating including a core and an anti-phase reflection coating provided on at least one part of the grating. The anti-phase reflection coating includes a high refractive index layer and a buffer layer. The high refractive index layer has at least one selected from a plurality of attributes characterizing the high refractive index layer. The at least one selected attribute gradually deceases along a propagation direction of light in the core of the grating.
Inventors:
Masatoshi Tokushima
Atsushi Ushida
Atsushi Ushida
Application Number:
JP2016179391A
Publication Date:
January 13, 2021
Filing Date:
September 14, 2016
Export Citation:
Assignee:
NEC
Technical Research Institute Optoelectronic Fusion Technology Laboratory
Technical Research Institute Optoelectronic Fusion Technology Laboratory
International Classes:
G02B6/124; G02B6/30; G02B6/34
Domestic Patent References:
| JP2000221349A |
Foreign References:
| US20140314374 | ||||
| US20110038588 | ||||
| US20120281950 |
Attorney, Agent or Firm:
Kenho Ikeda
Takashi Sasaki
Takashi Sasaki