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Patent Searching and Data


Title:
LIGHT WAVELENGTH SEPARATION DEVICE AND LIGHT WAVELENGTH SEPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/021972
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a light wavelength separation device and a light wavelength separation method that can be flexibly adapted for various channel intervals of a wavelength-division multiplexed (WDM) signal. A light wavelength separation circuit is provided with: an optical coupler which splits a wavelength-multiplexed optical signal in which optical signals of a plurality of channels are multiplexed; a bandpass filter which is arranged for each of output ports of the optical coupler, separates optical signals included in the wavelength-multiplexed optical signal inputted from the output ports of the optical coupler into channels of which the central frequencies are not adjacent to each other, and outputs the separated optical signals from respectively different output ports; and an optical switch which selects one of paths of the optical signals inputted from the output ports of each bandpass filter.

Inventors:
SATOU YOSHIROU (JP)
Application Number:
PCT/JP2018/027370
Publication Date:
January 31, 2019
Filing Date:
July 20, 2018
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
H04J14/02; H04B10/291
Foreign References:
JP2009210841A2009-09-17
JP2008259132A2008-10-23
JP2010098545A2010-04-30
JP2008259132A2008-10-23
JP2010098545A2010-04-30
JP2017146888A2017-08-24
Other References:
See also references of EP 3661083A4
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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