Experimental test of dense wavelength-division multiplexing using novel, periodic-group-delay-complemented dispersion compensation and dispersion-managed solitons

In an all-Raman amplified, recirculating loop containing 100-km spans, we have tested dense wavelength-division multiplexing at 10 Gbits/s per channel, using dispersion-managed solitons and a novel, periodic-group-delay-complemented dispersion-compensation scheme that greatly reduces the timing jitter from interchannel collisions. The achieved working distances are approximate to 9000 and approximate to 20,000 km for uncorrected bit error rates of 10(-8) and 10(-3), respectively, the latter corresponding to the use of ``enhanced{''} forward error correction; significantly, these distances are very close to those achievable in single-channel transmission in the same system. (C) 2003 Optical Society of America.