Title:
LIGHT DEFLECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/186471
Kind Code:
A1
Abstract:
A light deflection device (1), wherein a heating mechanism for generating a thermooptic effect in a slow light waveguide is formed on a semiconductor of the slow light waveguide. In the light deflection device (1), a heating mechanism having an electric current path is formed by an intrinsic region, and an impurity region (21) and a high-concentration diffusion layer region (23) sandwiching the intrinsic region (21) on both sides thereof in a photonic crystal waveguide (2) provided with a grating array (3) in which low-refractive-index portions are periodically arranged in the plane of a high-refractive-index member (10). The heating mechanism intensively heats a waveguide core in which slow light is propagated, and heating efficiency is therefore enhanced and the speed of heating response is increased, and by using the intrinsic region (21) of the heating mechanism as the waveguide core in which light is propagated, loss in the waveguide is reduced. It is thereby possible to provide a heating mechanism that realizes enhanced heating efficiency, reduced loss in the waveguide, and high-speed response in a light deflection device (1) for causing heat variation of refractive index.
Inventors:
BABA TOSHIHIKO (JP)
TAKEUCHI GORO (JP)
TAKEUCHI MOE (JP)
TERADA YOSUKE (JP)
TAKEUCHI GORO (JP)
TAKEUCHI MOE (JP)
TERADA YOSUKE (JP)
Application Number:
PCT/JP2018/014586
Publication Date:
October 11, 2018
Filing Date:
April 05, 2018
Export Citation:
Assignee:
NAT UNIV CORP YOKOHAMA NAT UNIV (JP)
International Classes:
G02F1/29
Domestic Patent References:
| WO2010035568A1 | 2010-04-01 | |||
| WO2015171125A1 | 2015-11-12 |
Foreign References:
| US20050084213A1 | 2005-04-21 | |||
| US20120013962A1 | 2012-01-19 | |||
| JP2014017481A | 2014-01-30 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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