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01182 am a22001813u 4500 |
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367584 |
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|a Aghajani, A.
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|a Murugan, G.S.
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|a Sessions, N.P.
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|a Pearce, S.J.
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|a Apostolopoulos, V.
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|a Wilkinson, J.S.
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|a Spectroscopy of ytterbium-doped tantalum pentoxide rib waveguides on silicon
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|c 2014-07-03.
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|z Get fulltext
|u https://eprints.soton.ac.uk/367584/1/__userfiles.soton.ac.uk_Users_nl2_mydesktop_Slabakova_ome-4-8-1505.pdf
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|a The design, fabrication and spectroscopic characterization of ytterbium-doped Ta<sub>2</sub>O<sub>5</sub> rib waveguide are described. The waveguides are fabricated on silicon substrates and operate in a single mode at wavelengths above 970 nm. The peak absorption cross-section was measured to be 2.75 x ~10<sup>-20</sup> cm<sup>2</sup> at 975 nm. The emission spectrum was found to have a broad fluorescence spanning from 990 nm to 1090 nm with the fluorescence emission peak occurring at a wavelength of 976 nm. The excited-state life time was measured to be approximately 260 µs.
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