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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 21 — Oct. 10, 2011
  • pp: 20761–20772

Energy transfer and enhanced 1.54 μm emission in Erbium-Ytterbium disilicate thin films

Maria Miritello, Paolo Cardile, Roberto Lo Savio, and Francesco Priolo  »View Author Affiliations

Optics Express, Vol. 19, Issue 21, pp. 20761-20772 (2011)

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α-(Yb1-xErx)2Si2O7 thin films on Si substrates were synthesized by magnetron co-sputtering. The optical emission from Er3+ ions has been extensively investigated, evidencing the very efficient role of Yb-Er coupling. The energy-transfer coefficient was evaluated for an extended range of Er content (between 0.2 and 16.5 at.%) reaching a maximum value of 2 × 10−16 cm−3s−1. The highest photoluminescence emission at 1535 nm is obtained as a result of the best compromise between the number of Yb donors (16.4 at.%) and Er acceptors (1.6 at.%), for which a high population of the first excited state is reached. These results are very promising for the realization of 1.54 μm optical amplifiers on a Si platform.

© 2011 OSA

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(260.2160) Physical optics : Energy transfer
(230.4480) Optical devices : Optical amplifiers

ToC Category:

Original Manuscript: July 5, 2011
Revised Manuscript: September 6, 2011
Manuscript Accepted: September 6, 2011
Published: October 4, 2011

Maria Miritello, Paolo Cardile, Roberto Lo Savio, and Francesco Priolo, "Energy transfer and enhanced 1.54 μm emission in Erbium-Ytterbium disilicate thin films," Opt. Express 19, 20761-20772 (2011)

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