本論文探討在平凹共振腔下激發摻釹釔釩酸雷射且腔內不含任何元件，當共振腔到達穩定區附近時，調歪共振腔，即可得到一個巨大的自發性Q開關脈衝。利用曲率半徑為1公分，反射率為98%的輸出耦合鏡，輸入功率為1W時，可以產生脈衝寬度約為2.35ns，脈衝重複率為9.84KHz，峰值功率約為112.5W的自發性Q開關脈衝。 In this thesis, we experimentally study that the plano-concave resonator configuration of diode-pumped Nd:YVO4 laser without any additional components can self Q switch and spontaneously generate giant pulses. Self-pulsation takes place when the cavity length is adjusted within a region close to the radius-of-curvature of the concave mirror as well as the cavity axis is misaligned with respect to the pump beam. In this way, giant pulses as short as 2.35 ns with a repetition rate of 9.84 kHz and highest peak power of 112.5 W are obtained at 1 W of pump power by using a concave mirror of 98% reflectivity and 10-mm radius of curvature.
