100GBIT/S, 200-KM OPTICAL-TRANSMISSION EXPERIMENT USING EXTREMELY LOW JITTER PLL TIMING EXTRACTION AND ALL-OPTICAL DEMULTIPLEXING BASED ON POLARIZATION-INSENSITIVE 4-WAVE-MIXING

Fully time-division-multiplexed 100Gbit/s optical transmission is successfully demonstrated through a 200km fibre, followed by PLL timing extraction and 100 to 6.3Gbit/s all-optical demultiplexing based on polarisation-insensitive four-wave mixing. The prescaled, 0.3ps jitter 6.3GHz clock is recovered from the 100Gbit/s signal using the four-wave mixing light generated in a polarisation-insensitive 100GHz laser-diode-amplifier phase detector. Polarisation-insensitive four-wave mixing demultiplexing is achieved by a polarisation rotating loop mirror configuration.