In this paper, the experimental investigation of the effect of thermal annealing on the optical characteristics of Na/sup +/-K/sup +/ ion exchanged BK7 glass waveguides is reported. We have observed that the process of thermal annealing causes a variation of the refractive index profile from complementary error function to Gaussian shape already after a few annealing hours. The change is more stringent in the waveguides diffused for 5 and 10 hours and subjected to subsequent annealing. In these cases the refractive index profile exhibits a step-like change which adds to the Gaussian variation.

Secondary Ion Mass Spectrometry and Optical Characterization of Ion Exchanged Waveguides Subjected to Thermal Annealing

C. Ciminelli;M. De Sario;
1996

Abstract

In this paper, the experimental investigation of the effect of thermal annealing on the optical characteristics of Na/sup +/-K/sup +/ ion exchanged BK7 glass waveguides is reported. We have observed that the process of thermal annealing causes a variation of the refractive index profile from complementary error function to Gaussian shape already after a few annealing hours. The change is more stringent in the waveguides diffused for 5 and 10 hours and subjected to subsequent annealing. In these cases the refractive index profile exhibits a step-like change which adds to the Gaussian variation.
8th Mediterranean Electrotechnical Conference on Industrial Applications in Power Systems, Computer Science and Telecommunications, MELECON '96
0-7803-3109-5
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/19674
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