Title :
Terminal-only compensation of a 6 × 80 km 10-gb/s WDM metro link using Raman-pumped dispersion-compensating fiber amplifiers
Author :
Nelson, L.E. ; Jørgensen, C.G. ; Du, M. ; Loadholt, T. ; Peckham, D.
Author_Institution :
OFS Labs., Somerset, NJ, USA
Abstract :
We investigate the use of dispersion-compensating Raman amplifiers (DCRAs) designed for terminal-only dispersion compensation of a typical 6 × 80 km 10-Gb/s wavelength-division-multiplexing metro link over standard single-mode fiber. The one-stage booster and two-stage preamplifier DCRAs were comprised of high figure-of-merit (400 ps/nm/dB) dispersion-compensating fiber. After transmission, all channels had less than 2.2-dB optical signal-to-noise ratio (OSNR) penalty (at 10-9 bit-error ratio) and more than 7-dB OSNR margin. Further measurements showed that the penalty could be attributed to the large accumulated dispersion during transmission due to the terminal-only compensation, and not to nonlinearities or multiple path interference in the DCRAs.
Keywords :
Raman lasers; error statistics; optical communication equipment; optical fibre amplifiers; optical fibre communication; optical fibre dispersion; optical pumping; wavelength division multiplexing; 10 Gbit/s; 6 km; 80 km; Raman-pumped amplifiers; WDM metro link; dispersion compensation; fiber amplifiers; fiber transmission; one-stage booster; optical signal-to-noise ratio penalty; standard single-mode fiber; terminal-only compensation; two-stage preamplifier; Fiber nonlinear optics; Nonlinear optics; Optical attenuators; Optical fiber amplifiers; Optical fiber dispersion; Optical noise; Preamplifiers; Signal to noise ratio; Stimulated emission; Wavelength division multiplexing; Dispersion compensation; Raman amplification; optical fiber communication;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.860380
