Passive Q-switching performance of intracavity frequency-doubled red laser with mixed Nd:GdxY1−xVO4 crystals
Passive Q-switching performance of intracavity frequency-doubled red laser with mixed Nd:GdxY1−xVO4 crystals
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DOI：
10.1016/j.optmat.2010.10.033
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发表时间：
2011
影响因子：
3.9
通讯作者：
Xuelian Li;Guoru Li;Shuqiang Zhao;Cheng-lin Xu;G. Du
中科院分区：
文献类型：
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作者：
Xuelian Li;Guoru Li;Shuqiang Zhao;Cheng-lin Xu;G. Du
比较了Nd:GdxY1−xvo4混合晶体在671nm处的被动调q激光操作。通过对比分析，Nd: gd0.63 y0.37 vo4晶体具有最高的脉冲能量和峰值功率以及最短的脉冲宽度。同时，与其他Nd:GdxY1−xvo4晶体相比，该晶体具有最低的热导率，这可能导致平均激光输出功率降低。为了验证这一假设，我们还测量了激光操作过程中晶体中产生的热透镜的焦距。
Passive Q-switching laser operation of Nd:GdxY1−xVO4mixed crystals at 671nm has been compared in the same V-shape folded cavity. Based on our comparative analysis, the best laser characteristics – the highest pulse energy and peak power and the shortest pulse width – were demonstrated by Nd:Gd0.63Y0.37VO4crystal. At the same time, this crystal possesses the lowest thermal conductivity in comparison with the other Nd:GdxY1−xVO4crystals, which could result in decreasing the average laser output power. To verify this assumption we also measured the focal lengths of thermal lens induced in the crystals during the laser operation.