Noncritically phase - matched second harmonic generation of blue light in Si [ 0 ] N - calix [ 41 arene slab type waveguides

Phase-matching (w+ TM:“) devices for generation of blue light using Si [ 0] N and optically nonlinear c&x [ 4]arene layers are designed, fabricated and tested. The devices show second harmonic peak power of 17 mW at 472.9 nm and 4.5 W at 481.6 nm after IQ mm propagation length of a 1 mm broad beam using fundamental peak power of 200 W and 500 W, respectively. The strong requirements of noncritical phase match are fulfilled, in both design and realization, by the excellent process controllability of the passive Si [ O] N waveguides and the insensitivity of the devices towards technologically critical parameters, mainly the calix 147 arene layer thickness.