发明授权
- 专利标题: System, method and apparatus for joint self phase modulation compensation for coherent optical polarization-division-multiplexed orthogonal-frequency division-multiplexing systems
- 专利标题(中): 用于相干光偏振分复用正交频分复用系统的联合自相位调制补偿的系统,方法和装置
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申请号: US12288794申请日: 2008-10-23
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公开(公告)号: US08204377B2公开(公告)日: 2012-06-19
- 发明人: Xiang Liu , Robert William Tkach
- 申请人: Xiang Liu , Robert William Tkach
- 申请人地址: FR Paris
- 专利权人: Alcatel Lucent
- 当前专利权人: Alcatel Lucent
- 当前专利权人地址: FR Paris
- 代理商 D. M. La Bruno
- 主分类号: H04J14/06
- IPC分类号: H04J14/06 ; H04B10/00
摘要:
System, apparatus and method of optical communication are provided for performing digital compensation of the self-phase modulation (SPM) effect experienced by a polarization-division multiplexed (PDM) orthogonal frequency-division multiplexed (OFDM) signal in fiber transmission by compensating a complex digital waveform representing one orthogonal polarization component of the optical PDM-OFDM signal based on both digital waveforms representing two orthogonal polarization components of the PDM-OFDM signal. The compensation of the digital waveform may be further based on an anticipated mean total nonlinear phase shift experienced by the signal during fiber transmission due to SPM. The compensation may be divided into pre-compensation at the PDM-OFDM transmitter and post-compensation at the PDM-OFDM receiver. The fiber transmission link preferably includes a pre-dispersion compensation module, distributed inline dispersion compensation modules, and a post-dispersion compensation module arranged in a judiciously chosen manner.
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