Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yuichi Akiyama0
Hiroki Ooi0
Jens C. Rasmussen0
Takafumi Terahara0
Akihiko Isomura0
Akira Miura0
Date of Patent
September 7, 2010
0Patent Application Number
112041840
Date Filed
August 16, 2005
0Patent Primary Examiner
Patent abstract
A core unit arranged in a transmission path includes a through path for causing an input signal to an input port to pass through to an output port, a drop-side port 25a that drops the input signal having a predetermined wavelength, and an add-side port 25b that adds channel having a predetermined wavelength to the input light.
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