Passively Q-Switched Quasi-Continuous-Wave Diode-Pumped Intracavity Optical Parametric Oscillator at 1.57 μm  

作　　者：王与烨 徐德刚 温午麒 王鹏 姚建铨 

机构地区：[1]Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072 [2]Key Laboratory of Optoelectric Information Science and Technology (Ministry of Education), Tianjin University, Tianjin 300072

出　　处：《Chinese Physics Letters》2008年第11期4009-4012,共4页中国物理快报（英文版）

摘　　要：We report on a passively Q-switched quasi-cw diode-pumped Nd： YA G including an intracavity optical parametric oscillator. The dynamics of this system is described by solving the coupled equations. The effect of the initial transmission of Cr^4＋ ： YA G saturable absorber on the signal wave operation is studied. Under optimum conditions, we achieve 2.3m^3 energy at 1.57μm wavelength for 40 Hz repetition rate. The peak power of the pulses amounts to 0.88 MW with the pulse width of 2.6 ns. When the Fresnel reflection losses of the tilters are taken into account, the pulse energy would be higher than 2.3 mJ. To the best of our knowledge, this is the highest pulse energy and peak power for such a type of single resonant quasi-cw diode pumped Nd：YAG/Cr^4＋ ：YAG IOPO laser.We report on a passively Q-switched quasi-cw diode-pumped Nd： YA G including an intracavity optical parametric oscillator. The dynamics of this system is described by solving the coupled equations. The effect of the initial transmission of Cr^4＋ ： YA G saturable absorber on the signal wave operation is studied. Under optimum conditions, we achieve 2.3m^3 energy at 1.57μm wavelength for 40 Hz repetition rate. The peak power of the pulses amounts to 0.88 MW with the pulse width of 2.6 ns. When the Fresnel reflection losses of the tilters are taken into account, the pulse energy would be higher than 2.3 mJ. To the best of our knowledge, this is the highest pulse energy and peak power for such a type of single resonant quasi-cw diode pumped Nd：YAG/Cr^4＋ ：YAG IOPO laser.

关 键 词：the power-law exponents precipitation durative abrupt precipitation change 

分 类 号：O43[机械工程—光学工程]