【摘要】 采用折叠棱镜腔电光调Q半导体泵浦板条Nd∶YAG激光器作为泵浦源,内腔泵浦Ⅱ类非临界相位匹配KTP光参量振荡器实现1.57μm人眼安全激光输出,经测试,在-30~55℃宽工作温度条件下,激光器工作频率20Hz时,单脉冲能量58.2mJ,脉冲宽度7.56ns,光束发散角约为2mrad,连续工作1 min,能量稳定性(PTP)优于6.438%,光轴指向稳定性优于0.1mrad,具备较强环境适应性,目前已实现工程化运用。更多还原

【Abstract】 By using the folding prism resonator of diode-pumped electro-optical Q-switched slab Nd∶YAG laser as the pump source,the KTP OPO crystal is employed in a type Ⅱ noncritical phase-matching of intracavity pump to achieve 1.57μm eye-safe laser output.Tested at-30~55 ℃ wide operating temperature conditions,the laser frequency of 20 Hz,single pulse energy of 58.2mJ,pulse width 7.56 ns,beam divergence angle of about 2mrad,working for one minute,the energy stability(PTP)is better than 6.438%,and the optical axis pointing stability is better than 0.1mrad.The eye-safe optical parametric oscillator has a strong environmental adaptability,and it has achieved engineering use.更多还原