利用高分子穩定型液晶能被外加電場改變穿透率的特性，給予一個外加調製交流電訊號，使液晶成為一個可控的光開關，將之放入固態雷射共振腔中，即可使雷射系統在開啟與關閉的狀態間循環，讓雷射在產生第一根尖峰脈衝後即刻關閉，就能得到一個穩定的脈衝序列。我們可以改變調製電訊號、共振腔結構以及液晶中高分子單體的參雜濃度，並同時觀察對脈衝特性的影響。

In this thesis, we study the method to generate spiked pulse laser with polymer-stabilized liquid crystals (PSLCs). By using the characteristic that the transmission of PSLCs can be controlled by an applied electric field, we can apply an AC signal on the PSLC and make it become an optical switch. Furthermore, we place the PSLC into the solid-state laser cavity and cause the laser system to be between the cycle of on-state and off-state. Controlling the laser system in the situation that as soon as the first spiking shows up, the laser system turns off immediately. Therefore, we can get a steady spiked pulse train theoretically. By changing the modulation electric signal, the length of the laser cavity or the weight concentration of polymer monomer in PSLC can control the behavior of spiked pulse.

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