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Torruellas, W.E. and Krijnen, G.J.M. and Kim, D.Y. and Schiek, R. and Stegeman, G.I. and Vidakovic, P. and Zyss, J. (1994) Cascading nonlinearities in an organic single crystal core fiber: The Cerenkov regime. Optics communications, 112 (1-2). pp. 122-130. ISSN 0030-4018 *** ISI Impact 1,486 ***
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Official URL: http://dx.doi.org/10.1016/0030-4018(94)90088-4
The large nonlinear phase shifts imparted to the fundamental beam during Cerenkov second harmonic generation (SHG) in a DAN, 4-(N,N-dimethylamino)-3-acetamidonitrobenzene, single crystal core fiber are explained and modelled numerically. Cascading upconversion and downconversion processes leads to nonlinear phase shifts produced by the second order nonlinear coupling of the guided fundamental mode and the component of the Cerenkov second harmonic field trapped in the fiber cladding.
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