High bit rate all-optical signal processing in a fiber photonic wire

We report the first demonstration of high bit rate signal processing by a fiber-based photonic wire. We achieve 160Gb/s demultiplexing via four wave mixing in a 1.9 mu m diameter photonic wire tapered from As2S3 chalcogenide glass single mode fibre, with very low pump power requirements ( < 20mW average power, 0.45W peak power), enabled by a very high nonlinearity (gamma similar to 7850 W-1 km (-1)) and greatly reduced dispersion. (C) 2008 Optical Society of America.