Title:
OPTICAL TRANSMISSION DEVICE, TRANSMISSION SYSTEM, AND CONTROL METHOD FOR TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/151067
Kind Code:
A1
Abstract:
The present invention provides an optical transmission device, a transmission system, and a control method for a transmission system which make it possible to adjust the wavelength band of dummy light according to the wavelength band of an added main signal. This optical transmission device comprises: an output branching unit which multiplexes and outputs an added main signal and dummy light; a wavelength adjustment unit which adjusts the wavelength band of the dummy light; a signal detection unit to which an optical signal outputted by the output branching unit is inputted, and which detects the wavelength band of the added main signal and outputs a detection result; and a control unit which controls the wavelength adjustment unit according to the detection result from the signal detection unit.
Inventors:
OOTAKI KAZUHIRO (JP)
Application Number:
PCT/JP2019/001988
Publication Date:
August 08, 2019
Filing Date:
January 23, 2019
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04J14/02
Domestic Patent References:
| WO2016139933A1 | 2016-09-09 | |||
| WO2015045311A1 | 2015-04-02 |
Foreign References:
| JP2005051598A | 2005-02-24 | |||
| JP2006005639A | 2006-01-05 | |||
| JP2014187671A | 2014-10-02 | |||
| JP2003244080A | 2003-08-29 | |||
| JP2018014326A | 2018-01-25 |
Other References:
See also references of EP 3748881A4
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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