Wavelength reused bidirectional transmission of adaptively modulated optical OFDM signals in WDM-PONs incorporating SOA and RSOA intensity modulators

被引：53

作者：

Wei, J. L. ^{[1
]}

Hugues-Salas, E. ^{[1
]}

Giddings, R. P. ^{[1
]}

Jin, X. Q. ^{[1
]}

Zheng, X. ^{[1
]}

Mansoor, S. ^{[1
]}

Tang, J. M. ^{[1
]}

机构：

[1] Bangor Univ, Sch Elect Engn, Bangor LL57 1UT, Gwynedd, Wales

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 10期

关键词：

RAYLEIGH BACKSCATTERING; FIBER LINKS; NETWORKS; PERFORMANCE; ACCESS; DOWNSTREAM;

D O I：

10.1364/OE.18.009791

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Detailed numerical investigations are undertaken of wavelength reused bidirectional transmission of adaptively modulated optical OFDM (AMOOFDM) signals over a single SMF in a colorless WDM-PON incorporating a semiconductor optical amplifier (SOA) intensity modulator and a reflective SOA (RSOA) intensity modulator in the optical line termination and optical network unit, respectively. A comprehensive theoretical model describing the performance of such network scenarios is, for the first time, developed, taking into account dynamic optical characteristics of SOA and RSOA intensity modulators as well as the effects of Rayleigh backscattering (RB) and residual downstream signal-induced crosstalk. The developed model is rigorously verified experimentally in RSOA-based real-time end-to-end OOFDM systems at 7.5Gb/s. It is shown that the RB noise and crosstalk effects are dominant factors limiting the maximum achievable downstream and upstream transmission performance. Under optimum SOA and RSOA operating conditions as well as practical downstream and upstream optical launch powers, 10Gb/s downstream and 6Gb/s upstream over 40km SMF transmissions of conventional double sideband AMOOFDM signals are feasible without utilizing in-line optical amplification and chromatic dispersion compensation. In particular, the aforementioned transmission performance can be improved to 23Gb/s downstream and 8Gb/s upstream over 40 km SMFs when single sideband subcarrier modulation is adopted in the downstream systems. (C) 2010 Optical Society of America

引用

页码：9791 / 9808

页数：18

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