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Proceedings Paper

Excited state cross sections for Er-doped glasses
Author(s): Stanley A. Zemon; Gary M. Lambert; William J. Miniscalco; Richard W. Davies; Bruce T. Hall; Robert C. Folweiler; Ta-Sheng Wei; Leonard J. Andrews; Mahendra P. Singh
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Paper Abstract

Excited-state-absorption (ESA) cross sections were determined for the region between 760 and 900 nm for Er-doped fluorophosphate phosphate and silicate glasses. Measurements were performed on multimode fibers pumping at 647 nm with powers 1 . 5 Wto invert the population into the saturation regime. Over much of the 800-nm band ground-state-absorption (GSA) cross sections are equal to or greater than ESA cross sections. For comparison ESA was also measured for singlemode Al/P-doped silica fiber. The cross sections were incorporated into an amplifier model and the phosphate and fluorophosphate glasses were found to provide higher gain than silica for pumping in the 800-nm band. Photoexcited fluorozirconates were found to have substantial populations in the first four excited states and ESA transitions originating from these states are identified.

Paper Details

Date Published: 1 January 1991
PDF: 12 pages
Proc. SPIE 1373, Fiber Laser Sources and Amplifiers II, (1 January 1991); doi: 10.1117/12.24926
Show Author Affiliations
Stanley A. Zemon, GTE Labs. Inc. (United States)
Gary M. Lambert, GTE Labs. Inc. (United States)
William J. Miniscalco, GTE Labs. Inc. (United States)
Richard W. Davies, GTE Labs. Inc. (United States)
Bruce T. Hall, GTE Labs. Inc. (United States)
Robert C. Folweiler, GTE Labs. Inc. (United States)
Ta-Sheng Wei, GTE Labs. Inc. (United States)
Leonard J. Andrews, GTE Labs. Inc. (United States)
Mahendra P. Singh, GTE Labs. Inc. (United States)

Published in SPIE Proceedings Vol. 1373:
Fiber Laser Sources and Amplifiers II
Michel J. F. Digonnet, Editor(s)

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