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        Refractive index profile measurements of diffused optical waveguides

        Author
        Martin, William Eugene
        Attention
        2299/12857
        Abstract
        Refractive index profiles resulting from the fabrication of optical waveguides by diffusion techniques are measured using a reflection interferometric technique. In Cd-diffused ZnSe waveguides, the index variations are found to be complementary error functions that closely follow the composition changes for deep ( greater than 5 mu m) diffusions. Shallow ( less than 5 mu m) diffusions produce waveguides in which the index profile is a complementary error function that differs significantly from the composition profile. The relationship between composition and refractive index is determined for Cd compositions less than 10%. Refractive index profiles in commercially available diffused glass waveguides (SELFOC rod and fibers) are also described.
        Publication date
        1974-09-01
        Published in
        Applied Optics
        Published version
        https://doi.org/10.1364/AO.13.002112
        Other links
        http://hdl.handle.net/2299/12857
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