NONCRITICALLY PHASE-MATCHED 2ND-HARMONIC GENERATION OF BLUE-LIGHT IN SI[O]N-CALIX[4]ARENE SLAB TYPE WAVE-GUIDES

Phase-matching (TM(0)(omega) --> TM(1)(2 omega)) devices for generatio n of blue light using Si[0]N and optically nonlinear calix[4]arene lay ers are designed, fabricated and tested. The devices show second harmo nic peak power of 17 mW at 472.9 nm and 4.5 W at 481.6 nm after 10 mm propagation length of a 1 mm broad beam using fundamental peak power o f 200 W and 500 W, respectively. The strong requirements of noncritica l phase match are fulfilled, in both design and realization, by the ex cellent process controllability of the passive Si[O]N waveguides and t he insensitivity of the devices towards technologically critical param eters, mainly the calix [4] arene layer thickness.