A low-complexity and adaptive nonlinearity estimation module is proposed and
experimentally demonstrated based on Godard's error and low-pass filter (LPF). The …

We experimentally investigate the performance of the signal power autocorrelation-based
method for chromatic dispersion (CD) estimation in a polarization-multiplexing quadrature …

An OSNR monitoring method assisted by support vector ordinal regression (SVOR) is
proposed for digital coherent receivers. According to Godard's error of equalized signals …

A two-stage fast and adaptive chromatic dispersion (CD) estimation algorithm is proposed
and demonstrated for coherent polarization-division-multiplexed (PDM) systems. The first …

An adaptive chromatic dispersion (CD) compensation algorithm based on Lee's timing error
detector (TED) is proposed for coherent communication systems. By combining both the in …

High bit rates optical communication systems pose the challenge of their tolerance to linear
and nonlinear fiber impairments. Coherent optical receivers using digital signal processing …

We present a comparative analysis on three carrier phase extraction approaches, including
a one-tap normalized least mean square method, a block-average method, and a Viterbi …

Coherent detection employing multilevel modulation format has become one of the most
promising technologies for next generation high speed transmission system due to the high …

The present invention relates to performing chromatic dis persion estimation in a receiver of
an optical communication system. Here, the signal received by the receiver includes frames …

Internet data traffic within data centre, access and metro networks is experiencing
unprecedented growth driven by many data-intensive applications. Significant efforts have …