端泵浦摻釹釩酸釔雷射在簡併共振腔下的動力學研究

Abstract

本實驗的目的是在探討端泵摻釹釩酸釔雷射在簡併共振腔下的動力學行為，以驗證我們數值模擬在這個架構下具低雷射閾值，及產生自脈衝現象的發現。在共振腔結構對應g1g2=1/4處，我們觀察到除了自脈衝現象伴隨著雷射光束收縮及繞射造成的光環，之外證實自脈衝訊號為混沌的行為。

In this report, we studied the dynamics of end-pumped Nd:YVO4 laser in degenerate cavity configurations. We have confirmed our numerical simulation that the laser exists low threshold and self-pulsation behavior in the configulation corresponding to g1g2=1/4. We found not only the aformentioned nonlinear behavior accompanied with the laser pattern shrinkage and diffraction ring but also the self-pulsation is indeed a chaoic behavior.