Enhancing the Signal Power Symmetry for Optical Phase Conjugation Using Erbium-Doped-Fibre-Assisted Raman Amplification

被引：5

作者：

Tan, Mingming ^{[1
]}

Nguyen, Tu Thanh ^{[1
]}

Rosa, Pawel ^{[2
]}

Al-Khateeb, Mohammad Ahmad Zaki ^{[1
,3
]}

Zhang, Tingting ^{[1
]}

Ellis, Andrew D. ^{[1
]}

机构：

[1] Aston Univ, Aston Inst Photon Technol, Birmingham B4 7ET, W Midlands, England

[2] Natl Inst Telecommun, PL-04894 Warsaw, Poland

[3] Infinera Corp, Allentown, PA 18106 USA

来源：

IEEE ACCESS | 2020年 / 8卷

基金：

英国工程与自然科学研究理事会;

关键词：

Stimulated emission; Optical fibers; Gain; Attenuation; Power measurement; Optical pumping; Loss measurement; Optical amplifiers; optical fibre communication; phase conjugation; nonlinear optics; NONLINEARITY MITIGATION; WAVELENGTH CONVERSION; TRANSMISSION; COMPENSATION; DISPERSION; AMPLIFIERS; LINK;

D O I：

10.1109/ACCESS.2020.3044525

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We propose a novel dual-order backward-pumped distributed Raman amplification scheme assisted erbium-doped-fibre (EDF) providing nearly perfect signal power symmetry (>93% symmetry level) over two 50.4 km single mode fibre spans. Compared with conventional dual-order Raman schemes, this scheme only requires an additional short (25 cm) erbium-doped fibre to compensate the loss from the passive components between spans, significantly improving the overall link symmetry. Unlike a conventional hybrid Raman/EDFA approach with separate amplifier modules, the proposed scheme offers cost savings by utilizing the Raman pumps to activate the erbium-doped fibre, avoiding the need for an EDF-designated pump. In an optical transmission system with four 50.4 km fibre spans, our novel Raman scheme presented in this paper enables mid-link optical phase conjugation (OPC) to compensate up to 37 dB of nonlinear Kerr inter-signal interference. This represents a 12 dB advantage in compensation over conventional dual-order Raman amplification. Our experimental and simulated results also demonstrate that the proposed configuration provides 7 dB nonlinear threshold enhancement in a 200 Gb/s DP-16QAM 200 km inline transmission system using a mid-link OPC, exceeding the enhancement observed with the conventional dual-order Raman scheme. Our simulation results also show that the optimum Q(2) factor using the proposed scheme outperforms the conventional schemes at 2000 km.

引用

页码：222766 / 222773

页数：8

共 2 条

[1] Exceeding the Nonlinear-Shannon Limit using Raman Laser Based Amplification and Optical Phase Conjugation
Phillips, I. D.
Tan, M.
Stephens, M. F. C.
McCarthy, M. E.
Giacoumidis, E.
Sygletos, S.
Rosa, P.
Fabbri, S.
Le, S. T.
Kanesan, T.
Turitsyn, S. K.
Doran, N. J.
Harper, P.
Ellis, A. D.
2014 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC), 2014,
[2] Wideband wavelength-flexible all-optical signal regeneration using gain-band tunable Raman amplification and self-phase-modulation-based spectral filtering
Matsuura, Motoharu
Kishi, Naoto
OPTICS LETTERS, 2009, 34 (16) : 2420 - 2422

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