Digital coherent transceivers have revolutionized optical fiber communications due to their
superior performance offered compared to intensity modulation and direct detection based …

Transceiver imperfections become the primary source of impairment as baud rate and
modulation order grow in advanced optical coherent communications. Thus, transceiver …

In this paper, an alternative approach to design linear equalization algorithms for optical
coherent receivers is introduced. Using widely linear (WL) complex analysis, a general …

The surge in interest regarding the next generation of optical fiber transmission has
stimulated the development of digital signal processing (DSP) schemes that are highly cost …

In-phase and quadrature (IQ) imbalances in optical transceiver, such as amplitude
imbalance, phase imbalance, and IQ skew, can cause serious system performance …

We propose a blind transmitter (Tx) and receiver (Rx) in-phase/quadrature (IQ) amplitude
and phase imbalances estimation scheme based on a combination of analytical modeling …

We experimentally demonstrate 200 Gb/s/downstream transmission for a passive optical
network (PON) with a minimal coherent receiver at optical network unit (ONU). The low …

Digital coherent transceivers have developed to the stage that they can monitor the physical
state of an optical network and thus are capable of generating data to build measurement …

We propose a monitoring method for individual impairments in a transmitter (Tx) and
receiver (Rx) by using filter coefficients of multi-layer strictly linear (SL) and widely linear …

We establish experimentally the suitability of an all-silicon optical modulator to support future
ultra-high-capacity coherent optical transmission links beyond 400 Gb/s. We present single …