Abstract
Interleaved bidirectional transmission has been used in DWDM systems for increasing overall capacity and reducing FWM and XPM in a single fiber. However, the interleaved bidirectional transmission is severely impaired by Rayleigh backscattering that can cause optical signal performance degradations. Rayleigh induced crosstalk can be suppressed by using interleaver or etalon filter.1,2 But in this case, the amplifiers and DCF for the traffic should be used in each direction at the amplification nodes, which are not cost-effective.
© 2002 Optical Society of America
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