Composite Yb:YAG/SiC-prism thin disk laser
Composite Yb:YAG/SiC-prism thin disk laser
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DOI：
10.1364/oe.18.017066
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发表时间：
2010-08-02
期刊：
影响因子：
3.8
通讯作者：
Dubinskii, M.
中科院分区：
文献类型：
--
作者：
Newburgh, G. A.;Michael, A.;Dubinskii, M.
我们首次展示了Yb：YAG薄片激光器，其中的增益介质是通过连接到光学质量的碳化硅棱镜的内腔面冷却。由于复合粘结Yb：YAG/碳化硅棱镜增益元件的特殊设计，光束以布鲁斯特角入射到激光腔内的所有折射率界面上。激光在Yb(10%)：YAG薄盘层的底部发生全内反射(TIR)，形成V形反弹腔。通过使用TIR和布鲁斯特角度，激光腔内不需要光学薄膜，无论是减反射(AR)还是高反射(HR)。在第一个演示中，当准连续(Q-CW)输出功率为1030 nm时，936.5 nm二极管泵浦激光器的斜率效率接近38%，光束质量测量为M-2=1.5时。这一演示为新型薄盘激光器设计开辟了一条可行的道路，该设计通过具有盘两侧导热性的铜的材料进行高效的双面室温散热。(C)2010年美国光学学会
We report the first demonstration of a Yb:YAG thin disk laser wherein the gain medium is intracavity face-cooled through bonding to an optical quality SiC prism. Due to the particular design of the composite bonded Yb:YAG/SiC-prism gain element, the laser beam impinges on all refractive index interfaces inside the laser cavity at Brewster's angles. The laser beam undergoes total internal reflection (TIR) at the bottom of the Yb(10%):YAG thin disk layer in a V-bounce cavity configuration. Through the use of TIR and Brewster's angles, no optical coatings, either antireflective (AR) or highly reflective (HR), are required inside the laser cavity. In this first demonstration, the 936.5-nm diode pumped laser performed with similar to 38% slope efficiency at 12 W of quasi-CW (Q-CW) output power at 1030 nm with a beam quality measured at M-2 = 1.5. This demonstration opens up a viable path toward novel thin disk laser designs with efficient double-sided room-temperature heatsinking via materials with the thermal conductivity of copper on both sides of the disk. (C) 2010 Optical Society of America