此實驗利用雙折射擴散接合晶體Nd:YVO4/ Nd:GdVO4和聲光調製器，並使用ABCD law計算穩定區範圍，設計四面鏡共振腔產生雙波長特性的圓柱向量光。藉著改變穩定區位置，產生圓柱向量光，並且可藉由改變穩定區位置得到雙波長方位角偏振光或雙波長徑向偏振光，另外加入聲光調製器，輸入32kHz的方波產生Q開關脈衝雷射，量測偏振度D.O.P確保產生的圓柱向量光都有良好的偏振特性，再經由CCD量測光束品質因子M-squared。最後運用馬赫-曾德爾干涉儀測量雙波長圓柱向量光的干涉特性和它的分解模態HG01與HG10都擁有一股渦流之光學特性。

In this thesis, we mainly use a birefringent diffusion-bonded crystal Nd:YVO4/ Nd:GdVO4 and an Acousto-Optic Modulator(AOM) along with a four-element cavity to generation dual-wavelength cylindrical vector beams. Changing the position of the stable region can generate cylindrical vector beams, and can obtain dual wavelength azimuthally polarized beams or dual-wavelength radially polarized beams. In addition, an Acousto-Optic Modulator is added, a 32kHz square wave signal is input to AOM to generate a Q-switched pulsed laser, the degree of polarization D.O.P is measured to ensure the generated cylindrical vector beams has good polarization characteristics, and the beam quality factor M2 is measured by CCD. Finally, the Mach-Zehnder interferometer is used to measure the interference properties of the double-wavelength cylindrical vector beams and its decomposition modes HG01 and HG10 have the optical properties of a vortex, the topological charges l were 1.

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