All-optical wavelength conversion of 10-Gb/s signal based on four-wave mixing is
experimentally demonstrated in a 30-m-long dispersion-flattened microstructure fiber with
small positive dispersion. For an average pump power of 26 dBm, the conversion efficiency
was around-19.5 dB with the fluctuation less than+-1.4 dB, covering a conversion bandwidth
of 20 nm. The eye diagram of the converted signal shows good eye opening.

We demonstrate a four-wave-mixing based wavelength converter using a 15-m highly
nonlinear holey fiber (HF) with a high stimulated Brillouin scattering (SBS) threshold. Error-
free efficient wavelength conversion of 10-Gb/s nonreturn-to-zero signal over a/spl sim/10-
nm bandwidth is reliably achieved. Our 15-m HF has a nonlinearity coefficient/spl
gamma//spl sim/70 (/spl plusmn/10) W/sup-1//spl middot/km/sup-1/and an SBS threshold of
more than 130 mW. The high SBS threshold is achieved by applying structural variation to …