Ns. Bergano et al., BIT-SYNCHRONOUS POLARIZATION AND PHASE MODULATION SCHEME FOR IMPROVING THE PERFORMANCE OF OPTICAL AMPLIFIER TRANSMISSION-SYSTEMS, Electronics Letters, 32(1), 1996, pp. 52-54
Scrambling the state-of-polarisation of the optical carrier at the bit
rate of the transmitted signal can greatly improve the transmission p
erformance of long-haul optical amplified transmission systems. By sup
erimposing optical phase modulation onto the synchronous polarisation
scrambling we can improve the performance of both single channel and W
DM transmission systems even further. The authors successfully applied
this technique of synchronous polarisation/phase modulation to transm
it 100Gbit/s (20 5Gbit/s WDM channels) over 6300 km.