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Enhanced near-infrared emission and broadband optical amplification in Yb–Bi co-doped germanosilicate glasses
2009
Journal of Physics D: Applied Physics
Yb-Bi co-doped germanosilicate glasses were prepared and their optical properties and optical amplification were investigated. Compared with single Bi-doped glasses, apparent enhancement in emission intensity, luminescence lifetime and optical gain was observed in Yb-Bi co-doped glasses with an excitation at 980 or 808 nm. The slope of the optical gain coefficient with the 808 nm excitation is much higher than that with 980 nm. The influences of Yb co-doping on the photoluminescence and gain
doi:10.1088/0022-3727/42/15/155102
fatcat:lo6ggmyqtjcvzpnlx45putg4zu