Kakarantzas, G., Townsend, P.D. and Wang, J.
Very low loss ion implanted planar waveguides in lead germanate glass
Electronics Letters, 29, (5), . (doi:10.1049/el:19930327).
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Ion implantation has been used to produce very low loss optical waveguides in lead germanate glass samples. Then is an increase in the refractive index of 0.35% for the given ion beam parameters. The loss can be as low as 0.15 dB/cm after thermal annealing.
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