T H Hoekstra

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Erbium-doped Y 2 0 3 planar optical waveguides have been fabricated by spray-pyrolysis deposition. The attenua-tion spectrum of the waveguide shows peaks that are due to absorption of the erbium ions. The as-deposited layers also show photoluminescence sharply peaking at 1540 nm with additional Stark splitting. The thin layers of Er 3:Y 2 0 3 obtained are(More)
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