Low-noise, pulsewidth tunable picosecond to femtosecond pulse generation by spectral filtering of wideband supercontinuum with variable bandwidth arrayed-waveguide grating filters

Pulsewidth tunable short optical pulses (0.37 ps/spl sim/11.3 ps) are generated with an average time-bandwidth product of 0.46 by spectral filtering of a 100 nm-broadened supercontinuum with variable bandwidth arrayed-waveguide grating filters. The BER measurements show that the generated pulses are low-noise and promising for use in ultrafast optical signal processing.