Title:
光ネットワーク
Document Type and Number:
Japanese Patent JP6419154
Kind Code:
B2
Abstract:
Provided is an optical network which makes it possible to increase frequency use efficiency of an optical signal when transmitting wavelength division multiplexed light. One or more optical path cross connection devices (OXC) through which a wavelength division multiplexed light signal travels when being transmitted from a prescribed transmission node to a prescribed receiving node, wherein when an optical channel inputted from an input optical fiber (Fi1-Fin) is routed or switched to one or more output optical fibers (Fo1-FoN), a plurality of optical channels adjacent on a frequency axis which are outputted to the same output optical fiber (FoN) in the input optical fibers (Fi1-Fin) are routed or switched to an output optical fiber by demultiplexing the plurality of optical channels as one bundle without demultiplexing each of the optical channels individually. Thus, it is possible to increase frequency use efficiency of an optical signal when transmitting wavelength division multiplexed light, because the instances of optical channel filtering are reduced and the loss caused by filtering is decreased.
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Inventors:
Kenichi Sato
Hiroshi Hasegawa
Mori Yojiro
Yuki Terada
Hiroshi Hasegawa
Mori Yojiro
Yuki Terada
Application Number:
JP2016505141A
Publication Date:
November 14, 2018
Filing Date:
February 12, 2015
Export Citation:
Assignee:
Japan Science and Technology Agency
International Classes:
H04B10/27; H04Q3/52
Domestic Patent References:
| JP2013085010A | ||||
| JP2013085011A |
Other References:
TANIGUCHI, Yuki et al.,Coarse granular optical routing networks utilizing fine granular add/drop,IEEE/OSA Journal of Optical Communications and Networking,米国,IEEE,2013年 7月,Vol.5, Issue.7,pages.774-783
TANIGUCHI, Yuki et al.,Dynamic grouped routing optical networks for cost effective and agile wavelength services,Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Confere,米国,IEEE,2013年 3月17日,pages.1-3
TERADA, Yuki et al.,Enhancement of fiber frequency utilization by employing grouped optical path routing,Optical Fiber Communications Conference and Exhibition (OFC),米国,IEEE,2014年 3月 9日,pages.1-3
TANIGUCHI, Yuki et al.,Dynamic grouped routing optical networks for cost effective and agile wavelength services,Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Confere,米国,IEEE,2013年 3月17日,pages.1-3
TERADA, Yuki et al.,Enhancement of fiber frequency utilization by employing grouped optical path routing,Optical Fiber Communications Conference and Exhibition (OFC),米国,IEEE,2014年 3月 9日,pages.1-3
Attorney, Agent or Firm:
Haruyuki Ikeda
Kojiro Ikeda
Kojiro Ikeda