Optical Waveguides Formed by Thermal Migration of Ions in Glass
T. G. GiallorenziThe authors are with the U.S. Naval Research Laboratory, Washington, D.C. 20390E. J. WestThe authors are with the U.S. Naval Research Laboratory, Washington, D.C. 20390Russell D. KirkThe authors are with the U.S. Naval Research Laboratory, Washington, D.C. 20390R. J. GintherThe authors are with the U.S. Naval Research Laboratory, Washington, D.C. 20390Roger AndrewsThe authors are with the U.S. Naval Research Laboratory, Washington, D.C. 20390
1973en
ABI
Аннотация
We present our results on optical waveguides formed by thermal diffusion of ions in glass. It was found that the peak of the ion-exchanged region can be shifted into the substrate interior by limiting the diffusion process. We also found that low loss films (<0.1 dB/cm) can be fabricated using this process and that the modal losses in these films do not agree with those losses predicted by existing theories. Also, the ion-exchange process has proved to be a simple means for fabricating tapered-edge couplers.
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