Mackenzie J I, Shepherd D P
Opt Lett. 2002 Dec 15;27(24):2161-3. doi: 10.1364/ol.27.002161.
We present a diode-pumped, double-clad Yb:YAG waveguide laser that contains an integrated section of a Cr(4+): YAG saturable absorber for passive Q switching. Using two 4-W polarization-coupled, broad-striped diode-pumped lasers, we obtained 30-microJ pulses of 1.6-ns duration at repetition rates of as much as 77 kHz. The slope efficiency was ~50% with respect to absorbed pump power, with a maximum output average power of 2.3 W and a peak power of ~18 kW . The output beam was single lobed, with M(2) values as great as 1.5x1.3 . We also demonstrate a passively Q -switched Nd:YAG waveguide laser of similar design, operating at 1.064 microm and 946 nm.
我们展示了一种二极管泵浦的双包层Yb:YAG波导激光器，它包含一个用于被动调Q的Cr(4+):YAG可饱和吸收体的集成部分。使用两台4W偏振耦合的宽条纹二极管泵浦激光器，我们在高达77kHz的重复频率下获得了持续时间为1.6ns、能量为30微焦的脉冲。相对于吸收的泵浦功率，斜率效率约为50%，最大输出平均功率为2.3W，峰值功率约为18kW。输出光束为单瓣，M(2)值高达1.5x1.3。我们还展示了一种类似设计的被动调Q Nd:YAG波导激光器，其工作波长为1.064微米和946纳米。
