Pka. Wai et al., WAVELENGTH-DIVISION MULTIPLEXING IN AN UNFILTERED SOLITON COMMUNICATION-SYSTEM, Journal of lightwave technology, 14(6), 1996, pp. 1449-1454
The limits on the minimum and maximum channel spacing of an unfiltered
wavelength division multiplexed soliton communication system are exam
ined, It is shown that soliton frequency shifts due to collisions at t
he receiver limit the minimum channel spacing to about four soliton sp
ectral widths while the gain deviation among different channels sets a
limit on the maximum channel spacing, The gain mismatch tolerance is
determined.