Invention Grant
US09100137B2 Crosstalk reduction in optical networks using variable subcarrier spectral allocation
有权
使用可变子载波频谱分配的光网络中的串扰减少
- Patent Title: Crosstalk reduction in optical networks using variable subcarrier spectral allocation
- Patent Title (中): 使用可变子载波频谱分配的光网络中的串扰减少
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Application No.: US14031809Application Date: 2013-09-19
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Publication No.: US09100137B2Publication Date: 2015-08-04
- Inventor: Olga Vassilieva , Motoyoshi Sekiya , Takeshi Hoshida
- Applicant: Fujitsu Limited
- Applicant Address: JP Kawasaki-shi
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki-shi
- Agency: Baker Botts L.L.P.
- Main IPC: H04J14/02
- IPC: H04J14/02
Abstract:
A method and system for reducing crosstalk among subcarriers of a super-channel may apply a frequency shift to selected intermediate subcarrier bands upon optical modulation. The frequency shift may be applied to equally spaced optical frequencies between a first optical frequency and a last optical frequency respectively corresponding to two end subcarrier bands that define a fixed bandwidth of the super-channel. The frequency shift may result in the intermediate subcarrier bands being optically modulated at variably spaced optical frequencies within the fixed bandwidth of the super-channel.
Public/Granted literature
- US20140314415A1 CROSSTALK REDUCTION IN OPTICAL NETWORKS USING VARIABLE SUBCARRIER SPECTRAL ALLOCATION Public/Granted day:2014-10-23
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