Opt Lett. 2018 Aug 15;43(16):3957-3960. doi: 10.1364/OL.43.003957.
We report on a simple experimental scheme based on a pair of cylindrical lenses (convex and concave) of the same focal length and common optical elements, producing high power optical beams in 1D and/or 2D Airy intensity profiles with laser polarization as the control parameter. Using an ultrafast Yb-fiber laser at 1064 nm of average power of 5 W in a Gaussian spatial profile and pulse width of ∼180 fs, we have generated 1D and 2D Airy beams at an efficiency of 80% and 70%, respectively, and a pulse width of ∼188 and ∼190 fs, respectively. We have measured the transverse deflection rate of 1D and 2D beams to be ∼5.0×10 1/mm and ∼2.0×10 1/mm, respectively. Simply rotating the polarization state of the 1D cubic phase modulated beam in the experiment, we can produce 1D and 2D Airy beams on demand. Using a 5 mm long bismuth borate (BiBO), we have also studied frequency-doubling characteristics of both 1D and 2D Airy beams. Like the 2D Airy beam, the 1D Airy beam also produces a frequency-doubled 1D Airy and an additional 1D spatial cubic structure. Like the Gaussian beams, we have observed the focusing dependence of conversion efficiency for both 1D and 2D Airy beams, producing green 1D and 2D Airy beams of output powers in excess of 110 and 150 mW for 3.4 and 2.8 W of fundamental power, respectively.
我们报告了一种基于一对相同焦距的柱面透镜（凸面和凹面）和常见光学元件的简单实验方案，该方案可在激光偏振作为控制参数的情况下，在 1D 和/或 2D Airy 强度分布中产生高功率光学光束。使用平均功率为 5 W、在高斯空间分布中、脉宽约为 180 fs 的超快 Yb 光纤激光，我们在效率分别为 80%和 70%的情况下，分别生成了 1D 和 2D Airy 光束，其脉宽分别约为 188 和 190 fs。我们测量了 1D 和 2D 光束的横向偏转率，分别为约 5.0×10 1/mm 和约 2.0×10 1/mm。只需旋转实验中 1D 立方相位调制光束的偏振状态，就可以按需生成 1D 和 2D Airy 光束。我们还使用 5mm 长的双硼酸铋（BiBO）研究了 1D 和 2D Airy 光束的倍频特性。与 2D Airy 光束一样，1D Airy 光束也会产生倍频的 1D Airy 和额外的 1D 空间立方结构。与高斯光束一样，我们观察到了 1D 和 2D Airy 光束的转换效率对聚焦的依赖性，产生了输出功率超过 110 和 150 mW 的绿色 1D 和 2D Airy 光束，对于 3.4 和 2.8 W 的基频功率，分别。
