藉由共振腔設計在c-cut的Nd:YVO4雷射已經可產生出徑向偏振光與方位角偏振光。基於誘發雙折射晶體的正常光與非正常的光程差，且位於穩定區邊界的共振腔結構能實現讓一道光變得不穩定且另一道光仍是穩定的。我們也藉由調整共振腔內透鏡與輸出耦合鏡的距離，便可選擇只有非正常光存在且穩定振盪下產生出徑向偏振光束。而在徑向偏振與方位角偏振的偏振比分別是45.4與29.5。一般雷射操作在特定架構中本質上會輸出圓柱向量光束。此外，我們也增加泵浦功率觀察空間相干的混沌和非線性動態行為和混沌同步的特性作為我們的未來計畫。

Radially and azimuthally polarized beams were genered in c-cut Nd:YVO4 lasers by using cavity design.Based on the optical path difference between the extraordinary and ordinary ray induced by the birefringence of the crystal, the specific cavity configuration near the boundary of stable region can achieve that one ray becomes unstable and the other ray is still stable. If only the extraordinary ray is stable for the oscillation, the output is a radially polarized beam.
The contrast ratios of polarization were 45.4 and 29.5 for the radially and azimuthally polarized beams,respectively.Cylindrical vector beam is an intrinsic output characteristic in a general laser as operating at the specific configuration.Moreover,spatial-dependent chaos was observed as increases the pump power,and the nonlinear dynamics and the characteristics of the synchronization are interesting for the future works.

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