Two-beam coupling and self-pumped phase conjugation properties of a Rh-doped BaTiO_(3) crystal were investigated at 633nm as the temperature was increased from 20 to 50℃.A significant decrease in response time and an...Two-beam coupling and self-pumped phase conjugation properties of a Rh-doped BaTiO_(3) crystal were investigated at 633nm as the temperature was increased from 20 to 50℃.A significant decrease in response time and an increase in gain of two-beam coupling were obtained.The self-pumped phase conjugation reflectivity was increased from 45 to 64%in this temperature range.展开更多
报道了一种基于被动调Q Nd∶YAG微片结构的主振荡功率放大和Nd∶YVO4板条多程放大的激光器。主振荡级采用Nd∶YAG/Cr4＋∶YAG被动调Q微片激光器,在重复频率为1 k Hz时,输出单脉冲能量为82μJ、脉冲宽度为1 ns的近衍射极限的激光输出。...报道了一种基于被动调Q Nd∶YAG微片结构的主振荡功率放大和Nd∶YVO4板条多程放大的激光器。主振荡级采用Nd∶YAG/Cr4＋∶YAG被动调Q微片激光器,在重复频率为1 k Hz时,输出单脉冲能量为82μJ、脉冲宽度为1 ns的近衍射极限的激光输出。为了实现信号光在Nd∶YVO4中获得5次放大,设计采用了多程往返光路。得到最大单脉冲能量为2.3 m J,脉宽为1 ns的激光输出,峰值功率大于2 MW,光束质量M2因子为M2x=2.48和M2y=1.24。该激光器结构简单、紧凑,采用传导冷却进行散热,适用于空间激光,在15℃~32℃的范围内,输出能量波动小于4%。展开更多
A compact passively Q-switched Yb：YAG microchip laser is demonstrated. Featuring a semiconductor saturable-absorber mirror （SESAM）, the laser yields pulses of 219 ps when the length of the microchip Yb：YAG crystal...A compact passively Q-switched Yb：YAG microchip laser is demonstrated. Featuring a semiconductor saturable-absorber mirror （SESAM）, the laser yields pulses of 219 ps when the length of the microchip Yb：YAG crystal is 100 #m and the beam quality is M2 〈 1.3. To the best of our knowledge, pulses from the proposed laser are the shortest Q-switching pulses obtained from Yb：YAG microchip lasers currently available.展开更多
基金Supported by a grant for a key research project(No.2)in the Climbing Program from the State Science and Technology Commission of China.
文摘Two-beam coupling and self-pumped phase conjugation properties of a Rh-doped BaTiO_(3) crystal were investigated at 633nm as the temperature was increased from 20 to 50℃.A significant decrease in response time and an increase in gain of two-beam coupling were obtained.The self-pumped phase conjugation reflectivity was increased from 45 to 64%in this temperature range.
文摘报道了一种基于被动调Q Nd∶YAG微片结构的主振荡功率放大和Nd∶YVO4板条多程放大的激光器。主振荡级采用Nd∶YAG/Cr4＋∶YAG被动调Q微片激光器,在重复频率为1 k Hz时,输出单脉冲能量为82μJ、脉冲宽度为1 ns的近衍射极限的激光输出。为了实现信号光在Nd∶YVO4中获得5次放大,设计采用了多程往返光路。得到最大单脉冲能量为2.3 m J,脉宽为1 ns的激光输出,峰值功率大于2 MW,光束质量M2因子为M2x=2.48和M2y=1.24。该激光器结构简单、紧凑,采用传导冷却进行散热,适用于空间激光,在15℃~32℃的范围内,输出能量波动小于4%。
文摘A compact passively Q-switched Yb：YAG microchip laser is demonstrated. Featuring a semiconductor saturable-absorber mirror （SESAM）, the laser yields pulses of 219 ps when the length of the microchip Yb：YAG crystal is 100 #m and the beam quality is M2 〈 1.3. To the best of our knowledge, pulses from the proposed laser are the shortest Q-switching pulses obtained from Yb：YAG microchip lasers currently available.
