We present a linear and nonlinear digital pre-distortion (DPD) tailored to the components of
an optical transmitter. The DPD concept uses nonlinear models of the transmitter devices …

The achievable transmission capacity of conventional optical fibre communication systems
is limited by nonlinear distortions due to the Kerr effect and the difficulty in modulating the …

The performance of coherent optical systems can be seriously degraded when in-phase and
quadrature (IQ) components experience misalignments crossing certain critical limits. The …

In one embodiment, a coherent optical receiver has a digital signal processor that processes
one or more digital I/O-signal pairs to recover data carried by a modulated optical signal in a …

We demonstrate fully blind processing and reduced-complexity nonlinear equalization
(NLE) of a 100G PM-64QAM optical channel in a 50 GHz WDM grid, achieving a maximum …

Transmission of single-carrier 448 Gb/s dual-polarization 16-ary quadrature-amplitude-
modulation (DP 16QAM) electrical time-division multiplexed (ETDM) signal and a 1.206 Tb/s …

A novel technique to transport a microwave signal over an optical fiber based on phase-
modulation and coherent in-phase (I) and quadrature-phase (Q) demodulation with an …

We present a novel simple blind adaptive compensation method for in-phase/quadrature
(IQ) imbalance in m-ary quadrature amplitude modulation (m-QAM) coherent optical fiber …

There are provided a method and a system for characterizing the CMRR of an ICR under
test, which employ highly coherent light from two continuous-wave (CW) single-frequency …

The implementation agreement of the Optical Internet Forum for a dual polarization (DP) I/Q
downconverter defines strict requirements for the phase diversity network, resulting in a …