We have identified cascading of second-order nonlinear processes as the origin of previously reported, very large nonlinearities measured by self-phase-modulation experiments in organic single-crystal-core fibers of 4-(N, N-dimethylamino)-3-acetamidonitrobenzene.
© 1994 Optical Society of America
Original Manuscript: December 23, 1993
Published: June 15, 1994
Dug Y. Kim, Petar Vidakovic, W. E. Moerner, R. Twieg, Joseph Zyss, William E. Torruellas, Jin Kang, G. Bjorklund, Christian Bosshard, and George I. Stegeman, "Second-order cascading as the origin of large third-order effects in organic single-crystal-core fibers," Opt. Lett. 19, 868-870 (1994)