DSP for coherent single-carrier receivers

M Kuschnerov, FN Hauske, K Piyawanno… - Journal of lightwave …, 2009 - opg.optica.org
In this paper, we outline the design of signal processing (DSP) algorithms with blind
estimation for 100-G coherent optical polarization-diversity receivers in single-carrier …

Fiber impairment compensation using coherent detection and digital signal processing

EM Ip, JM Kahn - Journal of Lightwave Technology, 2009 - ieeexplore.ieee.org
Next-generation optical fiber systems will employ coherent detection to improve power and
spectral efficiency, and to facilitate flexible impairment compensation using digital signal …

Equalizer design and complexity for digital coherent receivers

B Spinnler - IEEE Journal of Selected Topics in Quantum …, 2010 - ieeexplore.ieee.org
Digital signal processing has completely changed the way optical communication systems
work during recent years. In combination with coherent demodulation, it enables …

Reduced complexity digital back-propagation methods for optical communication systems

A Napoli, Z Maalej, VAJM Sleiffer… - Journal of lightwave …, 2014 - ieeexplore.ieee.org
Next-generation optical communication systems will continue to push the (bandwidth·
distance) product towards its physical limit. To address this enormous demand, the usage of …

Chromatic dispersion compensation in coherent transmission system using digital filters

T Xu, G Jacobsen, S Popov, J Li, E Vanin, K Wang… - Optics express, 2010 - opg.optica.org
We present a comparative analysis of three popular digital filters for chromatic dispersion
compensation: a time-domain least mean square adaptive filter, a time-domain fiber …

Adaptive frequency-domain equalization in digital coherent optical receivers

MS Faruk, K Kikuchi - Optics Express, 2011 - opg.optica.org
We propose a novel frequency-domain adaptive equalizer in digital coherent optical
receivers, which can reduce computational complexity of the conventional time-domain …

Recurrent neural network soft-demapping for nonlinear ISI in 800Gbit/s DWDM coherent optical transmissions

M Schaedler, G Böcherer, F Pittalà… - Journal of Lightwave …, 2021 - ieeexplore.ieee.org
High speed optical transmission systems suffer from intersymbol interference (ISI) and
colored noise induced by nonlinear bandwidth limited optical and electrical components. As …

100 Gb/s real-time transmission over a THz wireless fiber extender using a digital-coherent optical modem

C Castro, R Elschner, T Merkle, C Schubert… - Optical Fiber …, 2020 - opg.optica.org
100 Gb/s Real-Time Transmission over a THz Wireless Fiber Extender Using a Digital-Coherent
Optical Modem Page 1 M4I.2.pdf OFC 2020 © OSA 2020 100 Gb/s Real-Time Transmission …

Fast and robust blind chromatic dispersion estimation using auto-correlation of signal power waveform for digital coherent systems

Q Sui, APT Lau, C Lu - Journal of Lightwave Technology, 2012 - ieeexplore.ieee.org
We propose a chromatic dispersion (CD) estimation technique by using the auto-correlation
of signal power waveform for DSP based coherent systems. For single-carrier polarization …

Chromatic dispersion estimation for single-carrier coherent optical communications

C Xie - IEEE Photonics Technology Letters, 2013 - ieeexplore.ieee.org
We propose and demonstrate a blind chromatic dispersion (CD) estimation technique for
single-carrier coherent optical communication systems. We show that the peak-to-average …