Hickey, L.M.B. and Wilkinson, J.S.
Titanium diffused waveguides in sapphire
Electronics Letters, 32, (24), . (doi:10.1049/el:19961519).
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Fabrication of optical waveguides in sapphire by the thermal diffusion of titanium is reported. Single mode operation at lambda = 633nm was observed following diffusion at 1950±30°C for up to 3.5 hours. Waveguide mode intensity profiles are given and mode depths between 6.2µm and 9.6µm were obtained in the TE polarisation.
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