Sinc-shaped Nyquist pulses possess a rectangular spectrum, enabling data to be encoded
in a minimum spectral bandwidth and satisfying by essence the Nyquist criterion of zero inter …

Advances in High-Speed DACs, ADCs, and DSP for Optical Coherent Transceivers Page 1
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 32, NO. 4, FEBRUARY 15, 2014 629 …

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 …

A real-time switchable and reconfigurable multiwavelength laser has been experimentally
carried out. The laser cavity is based on a random distributed mirror and a novel real-time …

This tutorial paper reviews advanced modulation techniques that have been proposed in the
literature for the implementation of flexible (or reconfigurable) transceivers, which are …

Dual polarization quadrature phase-shifting keying (DP-QPSK) wavelength division
multiplexing (WDM) systems are currently acting as the backbone of long-haul optical …

This paper presents an approach of model-based design for implementing a digital
communication system on a field programmable gate array (FPGA) for a software defined …

Increasing demands for data centers, backbone, access, and wireless networks require
inventive concepts to transmit and distribute digital or analog signal waveforms. We present …

Concatenated filtering is an important impairment in high-spectral density transmission
systems enabled by flexible-grid reconfigurable optical add-drop multiplexers (ROADMs). In …

In this work, Nyquist pulse-sha** technology is exploited for future implementations of
optical access networks. The paper first presents technical issues regarding digital …