This paper discusses an ultra-dense, wide-band WDM system employing polarization multiplexing/demultiplexing and a gain-shifted thulium-doped fiber amplifier in the 1.49-μm band as a means of achieving 40 Gb/s-based 10-Tb/s DWDM transmission. Stimulated Raman scattering is a major factor limiting the transmission distance of such multi-band WDM system.

© 2001 Optical Society of America

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