We consider plane waves propagating in quadratic nonlinear slab waveguides with nonlinear quasi-phase-matching gratings. We predict analytically and verify numerically the complete gain spectrum for transverse modulational instability, including hitherto undescribed higher-order gain bands.
© 2004 Optical Society of America
Joel F. Corney and Ole Bang, "Complete modulational-instability gain spectrum of nonlinear quasi-phase-matching gratings," J. Opt. Soc. Am. B 21, 617-621 (2004)