Chinese Optics Letters, 2016, 14 (2): 020601, Published Online: Sep. 21, 2018
Pilot-added carrier-phase recovery scheme for Nyquist M-ary quadrature amplitude modulation optical fiber communication system Download: 938次
060.0060 Fiber optics and optical communications 060.1660 Coherent communications 060.2330 Fiber optics communications
Abstract
A new two-stage carrier-phase recovery scheme using a combination of an optical pilot-aided algorithm with the crossed constellation transformation algorithm for either square-framed or non-square-framed M-level-quadrature amplitude modulation (QAM) Nyquist systems is proposed. It is verified in 32- and 128-QAM systems that it can provide high linewidth tolerance with little complexity.
Wenbo Zhang, Dongwei Pan, Xiaofei Su, Xiaoguang Zhang, Lixia Xi, Xianfeng Tang. Pilot-added carrier-phase recovery scheme for Nyquist M-ary quadrature amplitude modulation optical fiber communication system[J]. Chinese Optics Letters, 2016, 14(2): 020601.