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Tangentially and radially polarized Nd:YAG hollow lasers with two pairs of axicons
Infrared Physics & Technology ( IF 3.3 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.infrared.2020.103301
Jing Xia , Zhihui Yang , Hong Chen , Zhenhua Du , Yanfei Lü

Abstract We present a novel method for generating tangentially and radially polarized laser radiations by using two pairs of positive and negative axicons. Tangentially and radially polarized diode-pumped Nd:YAG hollow lasers were demonstrated respectively. At an incident pump power of 17.8 W, the output power of tangentially and radially polarized laser beam is 6.9 W and 8.6 W, respectively. Polarization purity of tangentially and radially polarized laser beam is 99.2% and 98.7%, respectively. The experimental results reveal that tangentially and radially polarized laser beams with high polarization purity can be generated by resonator cavity consisting of only axicons. To the best of our knowledge, this is the first time that the cylindrical vector laser beam was realized only by axicons.

中文翻译:

具有两对轴棱镜的切向和径向偏振 Nd:YAG 空心激光器

摘要 我们提出了一种通过使用两对正、负轴棱镜产生切向和径向偏振激光辐射的新方法。分别演示了切向和径向偏振二极管泵浦 Nd:YAG 空心激光器。在 17.8 W 的入射泵浦功率下,切向和径向偏振激光束的输出功率分别为 6.9 W 和 8.6 W。切向和径向偏振激光束的偏振纯度分别为99.2%和98.7%。实验结果表明,仅由轴棱锥组成的谐振腔可以产生具有高偏振纯度的切向和径向偏振激光束。据我们所知,这是第一次仅通过轴棱锥实现圆柱矢量激光束。
更新日期:2020-06-01
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