448-Gb/s reduced-guard-interval CO-OFDM transmission over 2000 km of ultra-large-area fiber and five 80-GHz-grid ROADMs

X Liu, S Chandrasekhar, B Zhu, PJ Winzer… - Journal of lightwave …, 2011 - opg.optica.org
We propose a novel coherent optical orthogonal frequency-division multiplexing (CO-
OFDM) scheme with reduced guard interval (RGI) for high-speed high-spectral-efficiency …

Mitigation of fiber nonlinearity using a digital coherent receiver

DS Millar, S Makovejs, C Behrens… - IEEE Journal of …, 2010 - ieeexplore.ieee.org
Coherent detection with receiver-based DSP has recently enabled the mitigation of fiber
nonlinear effects. We investigate the performance benefits available from the …

Nonlinear impairment compensation for polarization-division multiplexed WDM transmission using digital backward propagation

F Yaman, G Li - IEEE Photonics Journal, 2010 - ieeexplore.ieee.org
A comprehensive treatment of digital backward propagation (DBP) accounting for the
vectorial nature of optical transmission is presented. Experimental results show that self …

104 Tbps/carrier probabilistically shaped PDM-64QAM WDM transmission over 240 km based on electrical spectrum synthesis

M Nakamura, F Hamaoka, M Nagatani… - Optical Fiber …, 2019 - opg.optica.org
Abstract We demonstrate 1.04-Tbps/carrier net-rate 125-GHz-spaced 9-WDM (9.3-Tbps)
transmission over 240-km using 120-GBd probabilistically shaped PDM-64QAM generated …

Spectrally efficient 800 Gbps/carrier WDM transmission with 100-GHz spacing using probabilistically shaped PDM-256QAM

M Nakamura, A Matsushita, S Okamoto… - 2018 European …, 2018 - ieeexplore.ieee.org
We demonstrate 800-Gbps/carrier WDM transmission at 100 GHz-spacing. 8-Tbps (800-
Gbps/carricr× 10 carriers) transmission over 400 km is achieved using 82-GBd …

[PDF][PDF] High data rate for coherent optical wired communication using DSP

R Udayakumar, V Khanaa… - Indian Journal …, 2013 - sciresol.s3.us-east-2.amazonaws …
The aim of this research is the development and analysis of digital signal processing
techniques for enhancing performance in coherent optical communication systems. While …

Transmission of a 448-Gb/s reduced-guard-interval CO-OFDM signal with a 60-GHz optical bandwidth over 2000 km of ULAF and five 80-GHz-Grid ROADMs

X Liu, S Chandrasekhar, B Zhu… - 2010 Conference on …, 2010 - ieeexplore.ieee.org
Transmission of a 448-Gb/s reduced-guard-interval CO-OFDM signal with a 60-GHz optical
bandwidth over 2000 km of ULAF and five 8 Page 1 Transmission of a 448-Gb/s Reduced-Guard-Interval …

Impact of interchannel nonlinearities on a split-step intrachannel nonlinear equalizer

SJ Savory, G Gavioli, E Torrengo… - IEEE Photonics …, 2010 - ieeexplore.ieee.org
We experimentally investigate the use of split-step intrachannel nonlinear equalizer, for a
wavelength-division-multiplexed (WDM) 112-Gb/s nonreturn-to-zero polarization-division …

Characterization of long-haul 112Gbit/s PDM-QAM-16 transmission with and without digital nonlinearity compensation

S Makovejs, DS Millar, D Lavery, C Behrens… - Optics express, 2010 - opg.optica.org
In this paper long-haul, single channel, polarization multiplexed 16-state quadrature
amplitude modulation (PDM-QAM-16) transmission at 112Gbit/s is investigated. Novel digital …

Optimized digital backward propagation for phase modulated signals in mixed-optical fiber transmission link

R Asif, CY Lin, M Holtmannspoetter, B Schmauss - Optics Express, 2010 - opg.optica.org
The parametric optimization of Digital Backward Propagation (DBP) algorithm for mitigating
fiber transmission impairments is proposed and numerically demonstrated for phase …