Title:
WAVELENGTH CROSS-CONNECT DEVICE AND WAVELENGTH CROSS-CONNECT METHOD
Document Type and Number:
WIPO Patent Application WO/2022/259318
Kind Code:
A1
Abstract:
A wavelength cross-connect device (10) includes a WXC unit (20) and a wavelength band switching unit (30). The WXC unit (20) includes input-end WSSs (21a to 21m) and output-end WSSs (22a to 22m) each of which receives wavelength multiplexed signal light obtained by multiplexing optical signals that do not require wavelength band conversion among sets of N optical signals obtained by branching wavelength multiplexed signal light at the input-end WSSs. The wavelength band switching unit (30) is configured to convert the wavelength band of wavelength multiplexed signal light, which is obtained by multiplexing optical signals that require the wavelength band conversion among the N optical signals obtained by branching the wavelength multiplexed signal light at each of the input-end WSSs, into a different wavelength band and to output the wavelength multiplexed signal light after the conversion to one of the output-end WSSs such that the path of the wavelength multiplexed signal light is changed.
Inventors:
KAWAHARA HIROKI (JP)
NAKAGAWA MASAHIRO (JP)
SEKI TAKESHI (JP)
NAKAGAWA MASAHIRO (JP)
SEKI TAKESHI (JP)
Application Number:
PCT/JP2021/021584
Publication Date:
December 15, 2022
Filing Date:
June 07, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04J14/02; H04B10/27
Foreign References:
| EP2773057A1 | 2014-09-03 | |||
| JP2018191109A | 2018-11-29 | |||
| JP2006191212A | 2006-07-20 | |||
| JP2003219440A | 2003-07-31 | |||
| US20040153492A1 | 2004-08-05 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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