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

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 7.5 Gb/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, 10 Gb/s downstream and 6 Gb/s upstream over 40 km 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 23 Gb/s downstream and 8 Gb/s upstream over 40 km SMFs when single sideband subcarrier modulation is adopted in the downstream systems.

[1]  Yun Chur Chung,et al.  Spectrum-sliced bidirectional passive optical network for simultaneous transmission of WDM and digital broadcast video signals , 2001 .

[2]  Hiroki Takesue,et al.  Wavelength channel data rewrite using saturated SOA modulator for WDM networks with centralized light sources , 2003 .

[3]  P. Gysel,et al.  Statistical properties of Rayleigh backscattering in single-mode fibers , 1990 .

[4]  Klaus Grobe,et al.  PON in adolescence: from TDMA to WDM-PON , 2008, IEEE Communications Magazine.

[5]  P. Chanclou,et al.  Experimental demonstration of 10 Gbit/s upstream transmission by remote modulation of 1 GHz RSOA using Adaptively Modulated Optical OFDM for WDM-PON single fiber architecture , 2008, 2008 34th European Conference on Optical Communication.

[6]  S. Chi,et al.  Demonstration of signal remodulation long reach carrier distributed passive optical network using OFDM-QAM signal , 2009, 2009 35th European Conference on Optical Communication.

[7]  J L Wei,et al.  Transmission performance of adaptively modulated optical OFDM modems using subcarrier modulation over SMF IMDD links for access and metropolitan area networks. , 2008, Optics express.

[8]  R.P. Giddings,et al.  Semiconductor Optical Amplifier-Enabled Intensity Modulation of Adaptively Modulated Optical OFDM Signals in SMF-Based IMDD Systems , 2009, Journal of Lightwave Technology.

[9]  J L Wei,et al.  Optimization and comparison of the transmission performance of RSOA/SOA intensity-modulated optical OFDM signals for WDM-PONs , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[10]  S. Woodward,et al.  A spectrally sliced PON employing Fabry-Perot lasers , 1998, IEEE Photonics Technology Letters.

[11]  G. Chang,et al.  Centralized Lightwave WDM-PON Employing 16-QAM Intensity Modulated OFDM Downstream and OOK Modulated Upstream Signals , 2008, IEEE Photonics Technology Letters.

[12]  Paul D. Townsend,et al.  Spectral slicing WDM-PON using wavelength-seeded reflective SOAs , 2001 .

[13]  Sien Chi,et al.  WDM extended reach passive optical networks using OFDM-QAM. , 2008, Optics express.

[14]  J.M. Tang,et al.  Maximizing the Transmission Performance of Adaptively Modulated Optical OFDM Signals in Multimode-Fiber Links by Optimizing Analog-to-Digital Converters , 2007, Journal of Lightwave Technology.

[15]  Lian-Kuan Chen,et al.  A centralized-light-source WDM access network utilizing inverse-RZ downstream signal with upstream data remodulation , 2007 .

[16]  J. Lee,et al.  Estimation of performance degradation of bidirectional WDM transmission systems due to Rayleigh backscattering and ASE noises using numerical and analytical models , 2003 .

[17]  R P Giddings,et al.  Colourless adaptively modulated optical OFDM transmitters using SOAs as intensity modulators. , 2009, Optics express.

[18]  Wooram Lee,et al.  Optical Transceiver employing an RSOA with Feed-Forward Current Injection , 2007, OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference.

[19]  L. Roy,et al.  Noise analysis of a photoreceiver using a P-I-N and GaAs HBT distributed amplifier combination , 2003, IEEE Microwave and Wireless Components Letters.

[20]  J.M. Tang,et al.  30-gb/s signal transmission over 40-km directly modulated DFB-laser-based single-mode-fiber links without optical amplification and dispersion compensation , 2006, Journal of Lightwave Technology.

[21]  J. Prat,et al.  Reflections and Multiple Rayleigh Backscattering in WDM Single-Fiber Loopback Access Networks , 2009, Journal of Lightwave Technology.

[22]  R.P. Giddings,et al.  First experimental demonstration of real-time optical OFDM transceivers , 2009, 2009 35th European Conference on Optical Communication.