Abstract
For low average power applications, Yb-sensitized Er lasers operating at 1.5 microns work well in phosphate glasses.1,2 This is because of the slightly exothermic near resonance between the P-O stretch overtone absorption at 3 000 cm−1 (3.3 microns) and the Er3+ 4I11/2 -> 4I13/2 emission at 3 400 cm−1 which causes selective deactivation of the 4I11/2 level. A short 4I11/2 lifetime is important because it transforms the otherwise reversible Yb3+ -> Er3+ energy transfer process into an irreversible one.
© 1994 Optical Society of America
PDF ArticleMore Like This
T. Schweizer, E. Heumann, F. Heine, and G. Huber
CFC3 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 1994
V. Lupei, S. Georgescu, and I. Ursu
PWe117 International Quantum Electronics Conference (IQEC) 1992
Phillip Burns, Judith M Dawes, Pu Wang, James A Piper, Huaijin Zhang, Li Zhu, and Xianlin Meng
ME2 Advanced Solid State Lasers (ASSL) 2001