Title:
OPTICAL CROSS-CONNECT DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/162858
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to reduce a transmission loss deviation between ports in an optical cross-connect device using a rotary optical switch. The present disclosure pertains to an optical cross-connect device in which optical switches for performing switching between a plurality of optical paths using optical fibers are connected to each other with the optical paths. This optical cross-connect device is characterized in that: the optical switches each perform switching, at once, between the plurality of optical paths by using a rotary body; and the optical paths for connecting the optical switches are provided with cross wiring parts for connecting one set of optical paths having great loss at the optical switches, among the plurality of optical paths to be switched at once, and the other set of optical paths having little loss at the optical switches, among the plurality of optical paths to be switched at once.
Inventors:
FUKAI CHISATO (JP)
TOGE KUNIHIRO (JP)
KAWANO TOMOHIRO (JP)
TOGE KUNIHIRO (JP)
KAWANO TOMOHIRO (JP)
Application Number:
PCT/JP2021/003164
Publication Date:
August 04, 2022
Filing Date:
January 29, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G02B6/35; G02B6/38; G02B26/08
Foreign References:
| JPH0282212A | 1990-03-22 | |||
| US20030202737A1 | 2003-10-30 | |||
| US4239330A | 1980-12-16 | |||
| US20050254747A1 | 2005-11-17 |
Attorney, Agent or Firm:
OKADA, Kenji et al. (JP)
Download PDF: