Abstract
We have demonstrated 1.15 W of Gaussianlike cw output at from a diode laser end-pumped monolithic laser crystal composed of Er-doped yttrium aluminum garnet (YAG) bonded to undoped YAG. The laser was pumped with two polarization-coupled 2.5-W flared laser diodes that provided a pump waist with a low N.A. . Output at was generated with a 34% slope efficiency and a greater-than-unity quantum efficiency.
© 1999 Optical Society of America
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