Explanipedia

Experimental comparison of E-band BDFA and Raman amplifier performance over 50 km G.652.D fiber using 30 GBaud DP-16-QAM and DP-64-QAM signals Open

Aleksandr Donodin, Pratim Hazarika, Mingming Tan, Dini Pratiwi, Shabnam Noor , et al. · 2024

We compare the performance of three optical amplifiers in the E-band: a bismuth-doped fiber amplifier (BDFA), a distributed Raman amplifier, and a discrete Raman amplifier (RA). Data transmission performance of 30 GBaud DP-16-QAM and DP-64…

Multi-Band Transmission Over E-, S-, C- and L-Band With a Hybrid Raman Amplifier Open

Pratim Hazarika, Henrique Buglia, Mindaugas Jarmolovičius, Eric Sillekens, Mingming Tan , et al. · 2023

Capacity enhancement by utilising the unused spectral bands of the low-loss optical window of standard single-mode fibre (SSMF) is a cost-effective solution for meeting the future demand of data traffic. The development of optical amplifie…

Ultra-wideband discrete Raman amplifier optimization for single-span S-C-L-band coherent transmission systems Open

Pratim Hazarika, Mingming Tan, Aleksandr Donodin, Mohammad Patel, Ian Phillips , et al. · 2022

We experimentally compare the performance of two key ultra-wideband discrete Raman amplifier structures, a cascaded dual-stage structure and an in-parallel dual-band structure, in fully loaded S-C-L band coherent transmission systems over …

E-, S-, C- and L-band coherent transmission with a multistage discrete Raman amplifier Open

Pratim Hazarika, Mingming Tan, Aleksandr Donodin, Shabnam Noor, Ian Phillips , et al. · 2022

We report for the first time an ultra-wideband coherent (UWB) WDM transmission over a 70 km standard single mode fibre (SSMF) solely using a multistage discrete Raman amplifier (DRA) over the E-, S-, C- and L-bands of the optical window. T…

Performance evaluation of discrete Raman amplifiers in coherent transmission systems Open

Pratim Hazarika, Mingming Tan, Md Asif Iqbal, Ian Phillips, Paul Harper , et al. · 2022

We evaluate the performance penalty due to discrete Raman amplifier (DRA) in a long haul WDM transmission system. The investigation was primarily performed to study the impact of the accumulated nonlinear noise due to fibre chromatic dispe…

30-GBaud DP 16-QAM transmission in the E-band enabled by bismuth-doped fiber amplifiers Open

Aleksandr Donodin, Mingming Tan, Pratim Hazarika, V.V. Dvoyrin, Ian Phillips , et al. · 2022

We report the transmission of five 30-GBaud dual polarization 16-QAM signals over 160 km of standard single-mode fiber in the E-band (1410–1460 nm). The transmission line consists of two 80-km spans and three independent bismuth-doped fibe…

Raman Amplification Optimization in Short-Reach High Data Rate Coherent Transmission Systems Open

Mingming Tan, Md Asif Iqbal, Tú Thanh Nguyễn, Paweł Rosa, Lukasz Krzczanowicz , et al. · 2021

We compared the transmission performances of 600 Gbit/s PM-64QAM WDM signals over 75.6 km of single-mode fibre (SMF) using EDFA, discrete Raman, hybrid Raman/EDFA, and first-order or second-order (dual-order) distributed Raman amplifiers. …

RIN induced penalties in G.654.E and G.652.D based distributed Raman amplifiers for coherent transmission systems Open

Pratim Hazarika, Mingming Tan, Md Asif Iqbal, Lukasz Krzczanowicz, Abdallah A. I. Ali , et al. · 2021

Relative intensity noise (RIN) induced penalties were experimentally measured in distributed Raman amplifiers (DRAs) for G.654.E and G.652.D fibres with forward, backward and bidirectional pumping configurations. The measured signal RIN us…

Impact of Chromatic Dispersion in Discrete Raman Amplifiers on Coherent Transmission Systems Open

Pratim Hazarika, Mahmood Abu-Romoh, Mingming Tan, Lukasz Krzczanowicz, Tú Thanh Nguyễn , et al. · 2021

The impact of chromatic dispersion in discrete Raman amplifiers on coherent transmission systems was investigated. Systems with positive dispersion gain fibre show a SNR improvement of ~1.8 dB for 23-GBaud DP-QPSK signals transmitted over …

Coupled Transceiver-Fiber Nonlinearity Compensation Based on Machine Learning for Probabilistic Shaping System Open

Tú Thanh Nguyễn, Tingting Zhang, Elias Giacoumidis, Abdallah A. I. Ali, Mingming Tan , et al. · 2020

In this article, we experimentally demonstrate the combined benefit of artificial neural network-based nonlinearity compensation and probabilistic shaping for the first time. We demonstrate that the scheme not only compensates for transcei…

High-capacity multi-span transmission performance characterization of broadband discrete Raman amplifier Open

Lukasz Krzczanowicz, Md Asif Iqbal, Ian Phillips, Paul Harper, W. Forysiak · 2020

The performance of a multi-span transmission link compensated with a >75nm broadband discrete Raman amplifier is experimentally evaluated using multiple DP-x-QAM modulation formats over a multi-channel C + L band WDM grid with up to 182 × …

Impact of pump-signal overlap in S+C+L band discrete Raman amplifiers Open

Md Asif Iqbal, Gabriele Di Rosa, Lukasz Krzczanowicz, Ian Phillips, Paul Harper , et al. · 2020

We experimentally investigate the impact of pump-signal overlap in ultra-wideband (>13THz) Raman amplifiers and measure the transmission penalty on 30GBaud PM-QPSK signals due to adjacent Raman pumps in a 15dB gain, 150nm (∼18.8THz) S+C+L-…

Generic probabilistic modelling and non-homogeneity issues for the UK epidemic of COVID-19 Open

Anatoly Zhigljavsky, Roger M. Whitaker, Ivan Fesenko, Kobi Kremnizer, Jack Noonan , et al. · 2020

Coronavirus COVID-19 spreads through the population mostly based on social contact. To gauge the potential for widespread contagion, to cope with associated uncertainty and to inform its mitigation, more accurate and robust modelling is ce…

High-capacity multi-span transmission performance characterization of broadband discrete Raman amplifier [data underpinning article] Open

Lukasz Krzczanowicz, Md Asif Iqbal, Ian Phillips, Paul Harper, W. Forysiak · 2020

Data underpinning article "Characterisation of Linear and Nonlinear Noise of a Dual-Stage Broadband Discrete Raman Amplifier" Open

Md Asif Iqbal, Lukasz Krzczanowicz, Mohammad Al-Khateeb, Ian Phillips, Mingming Tan , et al. · 2019

Data underpinning article "Distributed Raman Amplification Design for Fibre Nonlinearity Compensation with Mid-link Optical Phase Conjugation" Open

Mingming Tan, Mohammad Al-Khateeb, Tingting Zhang, Paul Harper, A.D. Ellis · 2019

Data underpinning article "Characterisation of Linear and Nonlinear Noise of a Dual-Stage Broadband Discrete Raman Amplifier" Open

Md Asif Iqbal, Lukasz Krzczanowicz, Mohammad Al-Khateeb, Ian Phillips, Mingming Tan , et al. · 2019

Noise performance improvement of broadband discrete Raman amplifiers using dual stage distributed pumping architecture Open

Md Asif Iqbal, Lukasz Krzczanowicz, Ian Phillips, Paul Harper, W. Forysiak · 2019

Characterisation of Linear and Nonlinear Noise of a Dual-Stage Broadband Discrete Raman Amplifier Open

Md Asif Iqbal, Lukasz Krzczanowicz, Mohammad Al-Khateeb, Ian D. Philips, Mingming Tan , et al. · 2018

The linear and nonlinear noise performance of a 70nm, dual-stage, ∼20dB-gain discrete Raman amplifier is characterised experimentally using different second-stage fibres. An advantageous IDF-SMF configuration is identified with an improvem…

Experimental demonstration of 72% reach enhancement of 36Tbps optical transmission system using mid-link optical phase conjugation Open

Mohammad Al-Khateeb, Mingming Tan, Md Asif Iqbal, Abdallah A. I. Ali, Mary E. McCarthy , et al. · 2018

We experimentally demonstrate nonlinear noise compensation in optical phase conjugation assisted 1st order Raman amplified 30x30Gbaud DP-QPSK transmission system with a spectral efficiency of 3.6b/s/Hz. We show that by optimizing the link …

Low transmission penalty dual-stage broadband discrete Raman amplifier Open

Lukasz Krzczanowicz, Md Asif Iqbal, Ian Phillips, Mingming Tan, Pavel Skvortcov , et al. · 2018

We present a broadband (>70nm), dual stage, discrete Raman amplifier designed with small and standard core fibres to maximize gain and minimize nonlinearity. The amplifier provides ~19.5dB net gain, 22.5dBm saturation output power and a no…

Analysis of the nonlinear Kerr effects in optical transmission systems that deploy optical phase conjugation Open

Mohammad Al-Khateeb, Md Asif Iqbal, Mingming Tan, Abdallah A. I. Ali, Mary E. McCarthy , et al. · 2018

In this work, we will derive, validate, and analyze the theoretical description of nonlinear Kerr effects resulting from various transmission systems that deploy single or multiple optical phase conjugators (OPCs). We will show that the no…

Data underpinning article "Nonlinear Noise of Low Transmission Penalty Dual-Stage Discrete Raman Amplifier" Open

Lukasz Krzczanowicz, Md Asif Iqbal, Ian Phillips, Mohammad Al-Khateeb, Mingming Tan , et al. · 2018

Data underpinning article "Enhanced Transmission Performance Using Backward-Propagated Broadband ASE Pump" Open

Md Asif Iqbal, Mingming Tan, Paul Harper · 2018

Data underpinning article "RIN Transfer Mitigation Technique Using Broadband Incoherent Pump in Distributed Raman Amplified Transmission Systems" Open

Md Asif Iqbal, Mingming Tan, Paul Harper · 2018

Data underpinning article "On the Mitigation of RIN Transfer and Transmission Performance Improvement in Bidirectional Distributed Raman Amplifiers" Open

Md Asif Iqbal, Mingming Tan, Paul Harper · 2018

Data underpinning article "Low Transmission Penalty Dual-Stage Broadband Discrete Raman Amplifier" Open

Lukasz Krzczanowicz, Md Asif Iqbal, Ian Phillips, Mingming Tan, Pavel Skvortcov , et al. · 2018

Data underpinning article "Experimental demonstration of 72% reach enhancement of 3.6Tbps optical transmission system using mid-link Optical Phase Conjugation" Open

Mohammad Al-Khateeb, Mingming Tan, Md Asif Iqbal, Abdallah A. I. Ali, Mary E. McCarthy , et al. · 2018

RIN Mitigation and Transmission Performance Enhancement With Forward Broadband Pump Open

Mingming Tan, Paweł Rosa, Son Thai Le, V.V. Dvoyrin, Md Asif Iqbal , et al. · 2017

We demonstrate that using a broadband, first order, and coherent pump laser enables effective and efficient forward- pumped distributed Raman amplification for long-haul trans- mission systems, thanks to the simultaneous suppression of ASE…

Noise and transmission performance improvement of broadband distributed Raman amplifier using bidirectional Raman pumping with dual order co-pumps Open

Md Asif Iqbal, Mingming Tan, Lukasz Krzczanowicz, A. E. El-Taher, W. Forysiak , et al. · 2017

We demonstrate a low noise bidirectional broadband distributed Raman pumping scheme combining dual order co-propagated pumps without increasing the signal RIN level. The noise performance improvement is compared experimentally and numerica…

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