Abstract
Intense visible upconversions under excitation of 975 nm are presented in Er3+/Yb3+ co-doped Gd2SiO5, Lu2SiO5 and (Lu0.5Gd0.5)2SiO5 laser crystals. Results indicate that these crystals should be promising laser gain mediums for tunable solid-state upconversion lasers.
© 2008 Optical Society of America
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