Lithium niobate step-index waveguides for broadband second harmonic generation
J.C.G. De Sande, S. Stivala, J. Gonzalo, and G. Assanto
J. Nonl. Opt. Phys. 15, 191-202 (2006)
Abstract:We investigate modal phase matching in lithium niobate step-index waveguides for second harmonic generation. We predict doubling bandwidths as large as 110 nm and show that temperature tuning can compensate for any deviation from the designed film thickness.