Hj. Thiele et al., Recirculating loop demonstration of 40Gbit/s all-optical 3R data regeneration using a semiconductor nonlinear interferometer, ELECTR LETT, 35(3), 1999, pp. 230-231
Cascaded 40Gbit/s 3R data regeneration is demonstrated for the first time,
using an all-optical semiconductor nonlinear interferometer. With a regener
ator spacing of 100km, the error-free transmission distance in a recirculat
ing loop is extended by an order of magnitude, from 200km to greater than 2
000km, thus demonstrating the excellent cascadablility of such a device.