Title:
OPTICAL DEVICE USING NANOCARBON MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/225445
Kind Code:
A1
Abstract:
The present invention provides an optical device which is capable of operating at high speed. An optical device according to the present invention comprises: a first optical waveguide which is connected to an input light port; a second optical waveguide which is connected to a first output light port; a third optical waveguide which is connected to a second output light port; an optical component which optically connects the first optical waveguide to at least one of the second optical waveguide and the third optical waveguide; a nanocarbon material which is provided at least in an area where the optical component is arranged; and a pair of electrodes which apply an electrical signal to the nanocarbon material. The optical path is switched between the first output light port and the second output light port by means of application of an electrical signal.
Inventors:
MAKI HIDEYUKI (JP)
Application Number:
PCT/JP2019/019366
Publication Date:
November 28, 2019
Filing Date:
May 15, 2019
Export Citation:
Assignee:
UNIV KEIO (JP)
International Classes:
G02F1/313; B82Y20/00; B82Y30/00; C01B32/174; C01B32/194; G01S7/481; G02B6/12; G02F1/025; G02F1/225; G02F1/29
Domestic Patent References:
| WO2017126386A1 | 2017-07-27 |
Foreign References:
| CN102662254A | 2012-09-12 | |||
| CN105044929A | 2015-11-11 | |||
| JP2015068927A | 2015-04-13 | |||
| JP2017161591A | 2017-09-14 | |||
| JP2010256552A | 2010-11-11 |
Other References:
TATOLI, T. ET AL.: "Graphene-based fine-tunable optical delay line for optical beamforming in phased-array antennas", APPLIED OPTICS, vol. 55, no. 16, 1 June 2016 (2016-06-01), pages 4342 - 4349, XP055657766
WANG, Y. ET AL.: "Improved performance of optical phased arrays assisted by transparent graphene nanoheaters and air trenches", RSC ADV., vol. 8, 23 February 2018 (2018-02-23), pages 8442 - 8449, XP055653674, DOI: 10.1039/C7RA13154B
YAN,SIQI: "Slow-light-enhanced energy efficiency for graphene microheaters on silicon photonic crystal waveguides", NATURE, vol. 8, no. 1, 14411, 9 February 2017 (2017-02-09), pages 1 - 8, XP055657770
WANG, Y. ET AL.: "Improved performance of optical phased arrays assisted by transparent graphene nanoheaters and air trenches", RSC ADV., vol. 8, 23 February 2018 (2018-02-23), pages 8442 - 8449, XP055653674, DOI: 10.1039/C7RA13154B
YAN,SIQI: "Slow-light-enhanced energy efficiency for graphene microheaters on silicon photonic crystal waveguides", NATURE, vol. 8, no. 1, 14411, 9 February 2017 (2017-02-09), pages 1 - 8, XP055657770
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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