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Preparation and fluorescence properties of sol-gel derived Er-doped SiO/sub 2/-GeO/sub 2/-Al/sub 2/O/sub 3/ planar optical waveguides

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7 Author(s)
Q. Xiang ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore ; Y. Zhou ; Y. L. Lam ; Y. C. Chan
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We focus on the optical properties of sol-gel derived Er-doped SiO/sub 2/-GeO/sub 2/-Al/sub 2/O/sub 3/ planar waveguides on SOS (silica-on-silicon) substrates. The study shows that the sol-gel method is a suitable technique to incorporate erbium ions in germanosilicate optical waveguides with a relatively high doping concentration, and aluminum co-doping can enhance the fluorescence intensity. The strong fluorescence emission implies that optical amplification can perhaps be realized if the propagation loss of the planar waveguide can be reduced.

Published in:

Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on  (Volume:4 )

Date of Conference:

Aug. 30 1999-Sept. 3 1999