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1. (WO2017150277) OPTICAL TRANSMISSION DEVICE

Pub. No.:    WO/2017/150277    International Application No.:    PCT/JP2017/006387
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Feb 22 00:59:59 CET 2017
IPC: H04J 14/02
H04B 10/27
Applicants: NEC CORPORATION
日本電気株式会社
Inventors: MATSUYAMA Yurie
松山 友理恵
OGUMA Takefumi
小熊 健史
Title: OPTICAL TRANSMISSION DEVICE
Abstract:
[Problem] To provide an optical transmission device which realizes the flexibility of optical communication such as wavelength reutilization while suppressing the band constriction of an optical filter, and which supports a flexible grid. [Solution] An optical transmission device according to the present invention is provided with a cyclic Arrayed Waveguide Grating (AWG) for filtering each optical signal inputted to each input port. Each of the optical signals is constituted so that a plurality of wavelength-multiplexed signals can be allocated within one channel band, each of the optical signals being filtered in channel units, and the pass-band width of each of the input ports of the cyclic AWG corresponds to the channel bandwidth.