The Volterra series transfer function (VSTF), in which the input–output relationship of a nonlinear system is represented by a series of nonlinear kernel functions, is an elegant tool to model nonlinear systems. The inverse of a nonlinear system can be constructed by analyzing VSTF. We propose a new electronic nonlinearity compensation scheme based on inverse VSTF. We show 1 dB improvement in Q-factor with a 256 Gb/s polarization-division-multiplexed 16-level quadratic amplitude modulation format, and 50% reduction in complexity by lowering the processing rate.
© 2011 IEEE
Ling Liu, Liangchuan Li, Yuanda Huang, Kai Cui, Qianjin Xiong, Fabian N. Hauske, Changsong Xie, and Yi Cai, "Intrachannel Nonlinearity Compensation by Inverse Volterra Series Transfer Function," J. Lightwave Technol. 30, 310-316 (2012)