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(Color online) Schematic of waveguide fabrication with type II modifications. Two lines are written which results in a symmetric waveguide in the center.
Fundamental (left) and second (right) harmonic mode fields in the type II waveguide. The harmonic field distribution is clearly a higher order.
(Color online) Temperature tuning curve of the second harmonic output. Maximum efficiency is achieved at . A quadratic phase mismatch was included in the calculation.
(Color online) SHG peak power as a function of input peak power (triangles) and theoretical calculation (solid line). The dotted line represents the deviation of the transmitted pump power from the linear regime.
(Color online) Measured SHG efficiency compared to the theoretical result with and without propagation losses.
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