In this paper, we will address the benefits of the coherent detection in future optical access
networks. The scarcity of the optical spectrum, the required flexibility, and constant evolution …

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

Efficient Clock and Carrier Recovery Algorithms for Single-Carrier Coherent Optical Systems:
A systematic review on challenges a Page 1 1053-5888/14/$31.00©2014IEEE IEEE …

The performance of high-speed intensity modulation direct detection (IM-DD) transmissions
is severely degraded by the linear inter-symbol interference (ISI), due to both bandwidth …

A novel carrier recovery scheme for demodulating optical M-ary quadrature amplitude
modulation (M-QAM) signals is proposed and demonstrated. The proposed scheme treats a …

We investigate the performance of sinc-shaped QPSK signal pulses generated in the digital,
electrical, and optical domains. To this end an advanced transmitter with a digital pulse …

Nyquist shaping UDWDM-PON combined with digital coherent optical systems has been
recently proposed as a promising technology for future optical access networks. In this …

This paper presents a systematic review of several digital signal processing (DSP)-enabled
technologies recently proposed and demonstrated for high spectral efficiency (SE) 400 Gb/s …

We present a method for joint optimization of transmitter in-phase, quadrature and
interpolarization time skew, amplitude mismatch, and bias voltages. The method is based on …

We present LDA*, a system that has been deployed in one of the largest Internet companies
to fulfil their requirements of" topic modeling as an internal service"---relying on thousands of …