利用軸稜錐與透鏡的組合重新塑形雷射泵源，將塑形後的瓶形光束(bottle beam)入射Nd:YVO_4晶體腔來產生渦流光束，在考慮到瓶形光束半徑的不同、泵源光束功率的大小以及晶體腔與瓶形光束的相對位置下，可以調控產生出拓樸電荷l=1、2的渦流光束以及多個拓樸電荷同時存在的渦流光束。

We generate optical vortex beam by pumping bottle beam, i.e., the laser pump which is shaped by comprising axicon and lens, into Nd:YVO_4 laser crystal. Considering the difference of bottle beam radius, pump power, and relative position of laser crystal and bottle beam, we can regulate the parameters and thus produce vortex beam of topological charge l=1、2 and/or multiple vortices of numerous topological charges coexistence.

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