Thermally-poled low-loss germanosilicate films grown on fused-silica substrates, with a record high nonlinear coefficient d33~1.6pm/V, are reported. This constitutes a two-fold improvement over highest reported d33 value in fused silica that we attribute to germanium.
© 2005 Optical Society of America
(190.0190) Nonlinear optics : Nonlinear optics
(190.4400) Nonlinear optics : Nonlinear optics, materials
(310.0310) Thin films : Thin films
(310.6860) Thin films : Thin films, optical properties
A. Ozcan, M. J. Digonnet, G. S. Kino, F. Ay, and A. Aydinli, "Thermally Poled Germanosilicate Films with High Second-Order Nonlinearity," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper CFC3.