Title:
WAVEGUIDE-TYPE OPTICAL SWITCH CIRCUIT AND METHOD FOR DRIVING SAME
Document Type and Number:
WIPO Patent Application WO/2021/149243
Kind Code:
A1
Abstract:
Conventionally, waveguide-type optical switch circuits have a problem such that it is not easy to achieve both a reduction in the time required for switching and switching back, and a reduction in power consumption. This waveguide-type optical switch circuit according to one embodiment is provided with: a waveguide that comprises a clad layer laminated on a substrate and a waveguide core embedded in said clad layer; a heater that is located above the waveguide core and formed on the upper surface of the clad layer; and a groove that has a surface parallel to a side surface of the waveguide core and that has the clad layer removed therefrom in the direction vertical to the substrate. The waveguide-type optical switch circuit is designed such that distance X between the waveguide core and the heater is equal to or longer than distance Y between the heater and the groove (X≥Y).
Inventors:
MORIWAKI OSAMU (JP)
SUZUKI KENYA (JP)
SUZUKI KENYA (JP)
Application Number:
PCT/JP2020/002515
Publication Date:
July 29, 2021
Filing Date:
January 24, 2020
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G02F1/313
Domestic Patent References:
| WO2017110282A1 | 2017-06-29 |
Foreign References:
| JP2003527624A | 2003-09-16 | |||
| JPH1130769A | 1999-02-02 | |||
| JP2007065645A | 2007-03-15 | |||
| US6773615B1 | 2004-08-10 |
Attorney, Agent or Firm:
TANI & ABE, P.C. (JP)
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