Cross-phase modulation (XPM) and induced focusing occur when copropagating ultrafast pulses interact in a nonlinear medium. XPM and induced focusing are investigated as new techniques to control the spectral, temporal, and spatial properties of ultrafast pulses with femtosecond time response. In this paper we review our most recent measurements on (1) induced spectral broadening in BK7 glass, (2) induced frequency shift of copropagating pulses in optical fibers, (3) XPM-stimulated Raman scattering in optical fibers, (4) XPM second-harmonic generation in ZnSe crystals, and (5) induced focusing of Raman pulses in optical fibers.
© 1989 Optical Society of America
Original Manuscript: October 18, 1988
Manuscript Accepted: December 28, 1988
Published: April 1, 1989
R. R. Alfano, Govind P. Agrawal, P. L. Baldeck, and P. P. Ho, "Cross-phase modulation and induced focusing due to optical nonlinearities in optical fibers and bulk materials," J. Opt. Soc. Am. B 6, 824-829 (1989)