Title:
OPTICAL MULTIPLEXING AND DEMULTIPLEXING DEVICE, AND METHOD OF CONTROLLING OPTICAL MULTIPLEXING AND DEMULTIPLEXING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/152115
Kind Code:
A1
Abstract:
In order to achieve a highly reliable reconfigurable optical add/drop multiplexing (ROADM) device, this optical multiplexing and demultiplexing device is provided with: a first wavelength selection switch which multiplexes, by wavelength, and outputs optical signals contained in a first wavelength multiplexed optical signal; a second wavelength selection switch which multiplexes, by wavelength, and outputs optical signals contained in a second wavelength multiplexed optical signal; an optical switch which, on the basis of the states of the first wavelength selection switch and the second wavelength selection switch, outputs the first wavelength multiplexed optical signal and the second wavelength multiplexed optical signal to the first wavelength selection switch or the second wavelength selection switch; and a first coupler which couples together the output from the first wavelength selection switch and the output from the second wavelength selection switch.
Inventors:
KAWAI MOTOYOSHI (JP)
Application Number:
PCT/JP2016/001549
Publication Date:
September 29, 2016
Filing Date:
March 17, 2016
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B10/032; H04B10/29
Foreign References:
| JP2013541301A | 2013-11-07 | |||
| JP2012004800A | 2012-01-05 | |||
| JP2011109173A | 2011-06-02 | |||
| JP2014220575A | 2014-11-20 |
Other References:
See also references of EP 3276854A4
Attorney, Agent or Firm:
SHIMOSAKA, NAOKI (JP)
Naoki Shimosaka (JP)
Naoki Shimosaka (JP)
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