We present experimental results on ultrafast intensity modulation usin
g the Raman effect and demonstrate 10-Gbit/s selective pulse erasure.
The technique is both broadband and polarization insensitive and has a
potential speed in excess of 500 Gbits/s. In addition to performing p
ulse erasure, this all-optical modulator can shape pulses as a precise
, soft aperture scalpel and create short, dark pulses. (C) 1998 Optica
l Society of America.