Nonlinear phase shift and all-optical switching in quasi-phase-matched quadratic media.
Recently it was shown that in quasi-phase-matched quadratic media the average intensities are subject to an induced Kerr effect. We analytically study the influence of this induced cubic nonlinearity on the amplitude and phase modulation of the fundamental wave and predict efficient all-optical switching.
Kobyakov
A
A
Lederer
F
F
Bang
O
O
Kivshar
Y S
YS