二极管泵浦的1瓦连续波掺铒钇铝石榴石3微米激光器。

Diode-pumped 1-W continuous-wave Er:YAG 3-mum laser.

作者信息

Chen D W, Fincher C L, Rose T S, Vernon F L, Fields R A

出版信息

Opt Lett. 1999 Mar 15;24(6):385-7. doi: 10.1364/ol.24.000385.

DOI:10.1364/ol.24.000385

Abstract

We have demonstrated 1.15 W of Gaussianlike (M(2) = 2) cw output at 2.94 mum 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 45-mum pump waist with a low N.A. (<0.04) . Output at 2.94 mum was generated with a 34% slope efficiency and a greater-than-unity quantum efficiency.

摘要

我们已经展示了一种由二极管激光器端面泵浦的单片激光晶体，该晶体由掺铒钇铝石榴石（YAG）与未掺杂的YAG键合而成，在2.94μm波长处输出了1.15W类似高斯光束（M² = 2）的连续波。该激光器由两个偏振耦合的2.5W扩束激光二极管泵浦，泵浦光斑尺寸为45μm，数值孔径较低（<0.04）。在2.94μm波长处的输出具有34%的斜率效率和大于1的量子效率。