Invention Grant
US09485019B1 Methods and systems for optical channel monitoring with periodic optical filtering of dual polarization signals
有权
用于光通道监测的方法和系统，具有双极化信号的周期性光学滤波
- Patent Title: Methods and systems for optical channel monitoring with periodic optical filtering of dual polarization signals
- Patent Title (中): 用于光通道监测的方法和系统，具有双极化信号的周期性光学滤波
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Application No.: US14791020Application Date: 2015-07-02
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Publication No.: US09485019B1Publication Date: 2016-11-01
- Inventor: Inwoong Kim , Olga Vassilieva , Motoyoshi Sekiya
- Applicant: Fujitsu Limited
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Baker Botts L.L.P.
- Main IPC: H04B10/079
- IPC: H04B10/079 ; H04J14/02
Abstract:
Methods and systems for optical channel monitoring of dual polarization optical signals may use a periodic optical filter to scan a free spectral range of the periodic optical filter. The optical signals may further be tone modulated using frequency or amplitude modulation. From a filtered signal, normalized Stokes vector signals may be generated using a polarimeter. The normalized Stokes vector signals may be digitally processed to identify center frequencies and power levels of individual optical subcarriers.
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