Title:
OPTICAL SWITCH AND OPTICAL SWITCH SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/062677
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to provide an optical switch that does not require power supply. Provided is an optical switch comprising an optically-driven part and an optical switching part. The optically-driven part includes: an optically-expandable body which expands by light irradiation and contracts by light blocking; a knock rod which converts the expansion/contraction of the optically-expandable body into linear movement that goes back and forth by a given distance; and a rotational movement body which has a rotor and which converts the expansion/contraction into rotational movement for rotating by a given angle about an axis of the rotor in accordance with the linear movement that goes back and forth by the given distance of the knock rod. The optical switching part includes: a first optical connection body to which one to-be-switched optical fiber is secured; a second optical connection body to which optical fibers of a to-be-switched optical fiber group are secured; and a connection rotational body which is secured to the rotor of the rotational movement body and rotates about the axis of the rotor, and which switchably connects the one to-be-switched optical fiber secured to the first optical connection body that is in contact with one end surface to one optical fiber of the to-be-switched optical fiber group secured to the second optical connection body that is in contact with the other end surface.
Inventors:
FUJIMOTO TATSUYA (JP)
KATAYAMA KAZUNORI (JP)
KOYAMA RYO (JP)
NAKAE KAZUHIDE (JP)
WATANABE HIROSHI (JP)
ABE YOSHITERU (JP)
KAWANO TOMOHIRO (JP)
FUKAI CHISATO (JP)
KATAYAMA KAZUNORI (JP)
KOYAMA RYO (JP)
NAKAE KAZUHIDE (JP)
WATANABE HIROSHI (JP)
ABE YOSHITERU (JP)
KAWANO TOMOHIRO (JP)
FUKAI CHISATO (JP)
Application Number:
PCT/JP2021/037544
Publication Date:
April 20, 2023
Filing Date:
October 11, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G02B6/35
Foreign References:
| JPS5414756A | 1979-02-03 | |||
| JPS5880603A | 1983-05-14 | |||
| US20020159685A1 | 2002-10-31 | |||
| JP2001145379A | 2001-05-25 | |||
| US6999221B1 | 2006-02-14 |
Attorney, Agent or Firm:
OKADA, Kenji et al. (JP)
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