Journal
APPLIED PHYSICS LETTERS
Volume 84, Issue 2, Pages 176-178Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1640469
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Codoping of erbium (Er3+) and ytterbium (Yb3+) rare-earth ions in polymer was studied for optical amplifier applications. The absorption spectrum confirms that the presence of Yb3+ ions enhances the absorption efficiency of Er3+ ions. Typical Er3+ luminescence at similar to1540 nm wavelength was observed, and the full width at half maximum bandwidth is similar to47 nm wide. Multimode Er3+-Yb3+ codoped polymeric channel waveguides were fabricated using electron beam direct writing. With an input signal power of <-18 dB m, an optical gain of 13 dB at a wavelength of 1533 nm was measured in an 18 mm long multimode channel waveguide. (C) 2004 American Institute of Physics.
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