0000000000166949
AUTHOR
Ludovic Gauthier-manuel
Fabrication et usinage des guides en verre de tellurite pour l'optique non-linéaire intégrée
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High efficiency frequency doubling in fully diced LiNbO3ridge waveguides on silicon
Nonlinear periodically poled ridge LiNbO3 waveguides have been fabricated on silicon substrates. Components are carved with only the use of a precision dicing machine without the need for grinding or polishing steps. They show efficient second harmonic generation at telecommunication wavelengths with normalized conversion reaching 204%/W in a 15 mm long device. The influence of the geometrical non uniformities of waveguides due to fabrication processes is asserted. Characteristics of the components are studied; notably their robustness and tunability versus temperature.