Phase matching using Bragg reflector waveguides

In this work, a simple means to achieve phase matching in compound semiconductor heterostructures through appropriate waveguide design is presented. Its strength is that it is material independent. The phase matching is demonstrated through second harmonic (SH) generation of coherent radiation at 775 nm by a pump at 1550 nm. Parametric conversion can also be demonstrated using the same structure by launching the SH at 775 nm; parametric fluorescence can then be obtained at 1550 nm