Abstract
Eyesafe lasers with wavelengths in the range of 1.5 to 1.8 μm have important applications in remote sensing, lidar, and eyesafe range finding. Several new saturable-absorber Q-switches for the 1.54-μm Er3+:glass laser have recently been reported.1–3 In this work, U2+:SrF2 and U2+:CaF2 crystals were used to Q-switch the 1.64-pm Er:YAG laser.4
© 1995 Optical Society of America
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