光學渦流是一種拉蓋爾-高斯模態的光束並帶有軌道角動量(Orbital angular momentum, OAM) l，在實驗中我們使用由軸稜錐透鏡與透鏡的組合生成瓶型光束(bottle beam)，並以它為泵源泵浦在晶體為Nd:YVO4的兩面鏡共振腔系統中成功的在不同泵浦位置下生成l=1~8的光學渦流，並且用重疊積分法的方式模擬，成功驗證出瓶型光束是如何泵浦出各階光學渦流。另外我們除了使用傳統的干涉法來解析光學渦流外，也從物理特性上使用了光束半徑關係的分析法以及M-square光束品質因子的分析法來量化的確認實驗中光學渦流。

Optical vortex, associated with Laguerre-Gaussian modes having orbital angular momentum(OAM) l. In this thesis, we use an axicon lens with a lens to generate a bottle beam to be a pump source. Tuning the location of laser crystal in the bottle beam, the optical vortex modes from l =1 to 8 were sequentially transformed. using the overlapping integral method to simulate and successfully verified how the bottle beam pumped generate optical vortex of each l. Finally, we use Mach-Zehnder interferometer, variations in real-beam spotsize, M-square quality factor to verify the different l of optical vortex.

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