Reduction of nonlinear impairments in fiber transmission system using fiber and/or transmitter diversity
- 作者：Sina Naderi Shahi ; snaderi@grads.ece.mcmaster.ca ; Shiva Kumar
- 关键词：Fiber optics communications ; Nonlinear optics ; Multi-core fiber
- 刊名：Optics Communications
- 出版年：2012
- 期刊代码：50_00304018
- 类别：ph
- 出版时间：15 July, 2012
- 卷：285
- 期：16
- 页码：3553-3558
- 文件大小：698 K
摘要
A multi-fiber architecture is proposed to mitigate the nonlinear impairments in fiber-optic systems. The power launched to each fiber is reduced in multi-fiber architecture as compared to the case of single fiber leading to reduction in nonlinear impairments. The optical pulses propagating in the fibers undergo different amount of phase shifts and timing delays. Optical and electrical equalization techniques to compensate for these channel effects are discussed. Our numerical simulation results show that for unrepeatered systems, the performance (Q factor) is improved by 6.2 dB using 8-fiber configuration as compared to single-fiber system. In addition, for multi-span system, the transmission reach at a bit error rate (BER) of 2.1 脳 10鈭?#xA0;3 is quadrupled in 8-fiber configuration.