Coherent Wavelength Division Multiplexing (CoWDM) is a promising technique in order to achieve, in a simple and cost-effective configuration, high information spectral densities (ISD) [1], In this paper, we estimate, for the first time, the impact of non-linear effects (NLE) and polarisation mode dispersion (PMD) for a CoWDM system using standard single-mode fibre (SSMF), showing that this high ISD system offers similar total reach to a standard WDM system with 42.6Gbit/s NRZ channels. We considered firstly the impact of noise and NLE on a 298.2Gbit/s CoWDM system generated from seven 42.6Gbit/s random data streams (512 and 27-l bits for simulated and experimental results respectively). Figure la, plots the simulated Q-factor of the worst tributary for each input power and the backscattered power due to stimulated Brillouin scattering (SBS). After transmission over 40 km of SSMF and corresponding dispersion compensating fibre (DCF) (closed triangles), the performance is degraded when the total launched power is above 10.4dBm due to the onset of SBS (open triangles), where a clear threshold occurs at approximately the same power level. Experimentally, at a launched power of 12dBm, SBS is clearly present (figure lb).

© 2007 IEEE

PDF Article
More Like This
2.5-Tb/s (256 × 12.4 Gb/s) Transmission of 12.5-GHz-Spaced Ultra-dense WDM Channels over a Standard Single-Mode Fiber of 2000 km

Gyo-Sun Hwang, Un-Seung Pyun, Sung-Ho Kim, Youngchul Chung, Jae-Seung Lee, and Byoung-Whi Kim
JWA42 National Fiber Optic Engineers Conference (NFOEC) 2007

30 Gbit/s RZ-8-PSK Transmission over 2800 km Standard Single Mode Fibre without Inline Dispersion Compensation

Ronald Freund, Dirk-Daniel Groß, Matthias Seimetz, Lutz Molle, and Christoph Caspar
OMI5 Optical Fiber Communication Conference (OFC) 2008

1 b/s/Hz Coherent WDM Transmission over 112 km of Dispersion Managed Optical Fibre

T. Healy, A.D. Ellis, F.C. Garcia Gunning, B. Cuenot, and M. Rukosueva
JThB10 National Fiber Optic Engineers Conference (NFOEC) 2006


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription