O. Leclerc et al., POLARIZATION-INDEPENDENT INP PUSH-PULL MACH-ZEHNDER MODULATOR FOR 20GBIT S SOLITON REGENERATION/, Electronics Letters, 34(10), 1998, pp. 1011-1013
A new polarisation-independent InP Mach-Zehnder interferometer provide
s adjustablephase/intensity optical modulation under independent 20GHz
electrical control of the electrodes. Validation of the component as
a regenerator for soliton systems is made through recirculating loop e
xperiments. Error free transmission at 20Gbit/s over more than 40000km
is obtained in push-pull mode for comparison with 8000km under single
-electrode control.