Ngr. Broderick et al., EXPERIMENTAL-OBSERVATION OF NONLINEAR PULSE-COMPRESSION IN NONUNIFORMBRAGG GRATINGS, Optics letters, 22(24), 1997, pp. 1837-1839
We demonstrate a scheme for optical pulse compression by cross-phase m
odulation that utilizes a nonuniform Bragg grating to work in reflecti
on. Our scheme is similar to the conventional optical pushbroom, which
works in transmission. This reflection geometry has the advantage of
allowing the compressed signal to be observed easily, as it is spatial
ly separate from the pump. This is to our knowledge the first nonlinea
r effect to be observed that requires a nonuniform grating. (C) 1997 O
ptical Society of America.