Radial and azimuthal polarizations in passively Q-switched solid-state laser

• Main Authors: Dong-LinLi, 李東霖
• Other Authors: Ming-Dar Wei
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/73158684348863903295

碩士 === 國立成功大學 === 光電科學與工程學系 === 101 === Radially and azimuthally polarized beams were generated in passively Q-switched Nd:GdVO4 laser with a Cr:YAG saturable absorber. Based on the cavity design, the cavity configuration simultaneously satisfied the thereshold of the passive Q-switching and the generating condition of the cylindrical vector beam. When the pump power was 5W, the pulse width, repetition frequency, and the average power were 110 ns, 12.3 kHz, and 270 mW, respectively. The pulse operation had better polarization ratio than that of continuous-wave operation. Moreover, the spatial-dependent pulse trains were explored, and the dynamical behavior is an interesting future work.