Lu, Gd codoped KY(WO(4))(2):Yb epitaxial layers: towards integrated optics based on KY(WO(4))(2)

Autor: Gardillou, Florent, Campillo, A.J., Romanyuk, Yaroslav E., Borca, Camelia N., Salathé, René-Paul, Pollnau, Markus
Rok vydání: 2007
Předmět:
Zdroj: Optics letters, 32(LNCS4549/5), 488-490. The Optical Society
ISSN: 0146-9592
Popis: Codoping $KY(WO_{4})_{2}:Yb$ layers with optically inert Lu and Gd ions allows a large increase of the refractive index contrast with respect to $KY(WO_{4})_{2}$ substrates. This paves the way for the realization of integrated optical circuits based on this very promising material. First riblike waveguide structures have been fabricated and propagation losses below 1 dB/cm have been evaluated. A Y-junction with a splitting ratio close to 1:1 and additional losses of 1.4 dB has also been demonstrated.
Databáze: OpenAIRE