title: Hybrid integration of Ca 0.28 Ba 0.72 Nb2O6 thin film electro-optic waveguides with silica/silicon substrates.
abstract: Ca(0.28)Ba(0.72)Nb(2)O(6) (CBN-28) waveguides based on thin film technology were fabricated on SiO(2)/(100) Si substrates. By using X-ray diffraction, we confirmed the preferential c-axis orientation of the CBN structures. An effective unclamped electro-optic r33 coefficient of 12 pm/V was measured in CBN thin films by using an ellipsometric technique in reflection geometry. In addition, by means of a Fabry-Perot technique, the propagation losses of our strip loaded waveguides were estimated to be as low as 4.8 dB/cm and 6.5 dB/cm at telecommunication wavelengths for the fundamental TE and TM modes, respectively.
authors.affiliation: INRS-EMT, 1650 Boulevard Lionel Boulet, Varennes, Québec J3X 1S2, Canada. ndione@emt.inrs.ca
authors.forename: Paul F
authors.initials: PF
authors.lastname: Ndione
authors.forename: Marcello
authors.initials: M
authors.lastname: Ferrera
authors.forename: David
authors.initials: D
authors.lastname: Duchesne
authors.forename: Luca
authors.initials: L
authors.lastname: Razzari
authors.forename: Mounir
authors.initials: M
authors.lastname: Gaidi
authors.forename: Mohamed
authors.initials: M
authors.lastname: Chaker
authors.forename: Roberto
authors.initials: R
authors.lastname: Morandotti