Abstract

We report the fabrication and characterization of Ag-As₂Se₃ strip-loaded waveguides fabricated by the standard lift-off method and photodoping, where Ag-As₂Se₃ (i.e., Ag_x(As_0.4Se_0.6)_100-x) is a very promising material for all-optical switching devices because of a high third-order optical nonlinearity. Absorption coefficient of the bulk glasses is also presented for different values of the Ag content x. The addition of Ag into an As₂Se₃ guiding layer increases its nonlinearity and eliminates or weakens a harmful photo-oxidation reaction of As₂Se₃ films. The measured propagation loss in the single-mode waveguides with the Ag content x=3 at.% was 0.5 dB/cm at a wavelength of 1.053 μm and was attributable to the absorption loss in the waveguide materials.

©2005 Optical Society of America

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