Measurement of Modulational Instability Gain of Second-Order Nonlinear Optical Eigenmodes in a One-Dimensional System
- 14 May 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 86 (20) , 4528-4531
- https://doi.org/10.1103/physrevlett.86.4528
Abstract
We have investigated the amplification of a spatially periodic perturbation applied to a wide fundamental beam launched near phase matching for second-harmonic generation in a lithium niobate film waveguide. We measured the gain coefficient for the modulational instability of quadratic eigenmodes as a function of periodicity, intensity, and wave-vector mismatch. Excellent agreement with theory was obtained.Keywords
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