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1.7 micron excited state absorption measurement in erbium-doped glasses

By J.E. Román, M. Hempstead, C.C. Ye, P. Camy, P. Laborde and C. Lerminiaux

Abstract

We have measured, for the first time, the complete 1.7µm excited state absorption spectrum in erbium doped glasses. The spectrum is obtained by measuring the gain of an erbium doped waveguide in the 1400-1800 nm region. Using the measured spectra, we estimate the 1.5µm uniform upconversion rate by calculating the spectral overlap between the 1.5µm emission and 1.7µm ESA cross sections. The technique is applied to erbium-doped, ion-exchangeable silicate glasses, yielding upconversion constants in the range of 1-10 x 10^-18 cm^3 /s

Topics: QC, TK
Year: 1995
OAI identifier: oai:eprints.soton.ac.uk:78159
Provided by: e-Prints Soton

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