Invention Grant
- Patent Title: Inter-band cross-phase modulation compensation for the mitigation of intra-channel nonlinear impairments in optical fiber transmission
- Patent Title (中): 用于减轻光纤传输中通道内非线性损伤的带间交叉相位调制补偿
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Application No.: US14044518Application Date: 2013-10-02
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Publication No.: US09184854B2Publication Date: 2015-11-10
- Inventor: Eduardo F. Mateo , Fatih Yaman , Dayou Qian , Ting Wang
- Applicant: NEC Laboratories America, Inc.
- Applicant Address: US NJ Princeton
- Assignee: NEC Laboratories America, Inc.
- Current Assignee: NEC Laboratories America, Inc.
- Current Assignee Address: US NJ Princeton
- Agent Joseph Kolodka
- Main IPC: H04B10/06
- IPC: H04B10/06 ; H04B10/61

Abstract:
An optical communication system includes a digital signal processer coupled to the coherent receiver, said coherent receiver including a nonlinearity compensation module for compensating for nonlinear effects in fiber in the optical link for increasing capacity or transmission distance of the fiber, the nonlinearity compensation module includes a spectral slicing of the signal into bands, computing nonlinear interaction between the bands with parameters opposite to those of the fiber to reverse the non-linear effects in the fiber, and only certain nonlinear interactions between bands are considered thereby reducing complexity of the nonlinearity compensation.
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