S. Diez et al., ALL-OPTICAL SWITCH FOR TDM AND WDM TDM SYSTEMS DEMONSTRATED IN A 640GBIT/S DEMULTIPLEXING EXPERIMENT/, Electronics Letters, 34(8), 1998, pp. 803-805
A novel interferometric switch is presented that exhibits high lineari
ty, high switching contrast, low noise, wide bandwidth and low crossta
lk. The switching principle, which is based on refractive index modula
tion in a wavelength band far from the gain region of a semiconductor-
optical amplifier, is successfully demonstrated in an error-free 640 G
bit/s demultiplexing experiment.