1 February 1992 Homogeneous linewidths in Er3+-doped glasses measured by resonance fluorescence line narrowing
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Abstract
Resonance-fluorescence-line-narrowing studies have been performed on a representative group of Er3+ -doped glasses for excitation in both the 1530 and 980-nm bands at 4.2, 77, 200, and 300 K. Fluorozirconate, fluorophosphate, phosphate, silicate, Ge/P-doped and A1/P-doped silica preforms, and Al/P-doped and Ge-doped fibers were examined. At 77 K the homogeneous linewidths were found to be relatively insensitive to composition. In particular, they vary from 1.4 to 1.8 cm-1 for the different hosts using excitation at 1531 nm. At 300 K weak resonant features were observed in most samples, consistent with a small inhomogeneous contribution to a predominantly homogeneous fluorescence emission.
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Stanley A. Zemon, Gary M. Lambert, William J. Miniscalco, Barbara A. Thompson, "Homogeneous linewidths in Er3+-doped glasses measured by resonance fluorescence line narrowing", Proc. SPIE 1581, Fiber Laser Sources and Amplifiers III, (1 February 1992); doi: 10.1117/12.134974; https://doi.org/10.1117/12.134974
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