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Proceedings Paper

Comparison of 1.48-um and 980-nm pumping for Er-doped superfluorescent fiber sources
Author(s): Paul F. Wysocki; Robert F. Kalman; Michel J. F. Digonnet; Byoung Yoon Kim
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Paper Abstract

The characteristics of Er-doped superfluorescent fiber sources are simulated for pump wavelengths in the 980 nm and 1.48 ?m pump absorption bands. Because absorption near 980 nm occurs to a short-lived pump state, while absorption near 1.48 ?m occurs to the long-lived upper-laser state, sources pumped in these wavelength regions have different characteristics. Both pump bands are found to have optimal pump wavelengths for stability and power (976 nm and 1.475 ?m). While both pump bands are efficient, the 1.48 ?m pump band has a lower threshold pump power level and a higher slope efficiency. On the other hand, the 980 nm pump band produces broader spectra and permits the use of shorter fiber lengths. These and other source characteristics are discussed in detail.

Paper Details

Date Published: 1 February 1992
PDF: 19 pages
Proc. SPIE 1581, Fiber Laser Sources and Amplifiers III, (1 February 1992); doi: 10.1117/12.134970
Show Author Affiliations
Paul F. Wysocki, Stanford Univ. (United States)
Robert F. Kalman, Stanford Univ. (United States)
Michel J. F. Digonnet, Stanford Univ. (United States)
Byoung Yoon Kim, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 1581:
Fiber Laser Sources and Amplifiers III
Michel J. F. Digonnet; Elias Snitzer, Editor(s)

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