参量放大 meaning in English
parametric amplification
parametric gain
Examples
- Investigation on the second order remapping algorithm for laser - target coupling
超连续谱注入飞秒光参量放大实验研究 - Temporal and spatial walk - off for ultra - short mid - infrared optical parametric amplification
超短中红外参量放大过程的时空走离特性 - Based on these foundations , we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered
在此基础上，给出了一整套bbo - opo激光参数设计方案：计算了不同泵浦强度下的参量放大倍数；详细计算了在nd : yag调q激光器各次谐波泵浦条件下的共线类和类相位匹配的调谐曲线，以及非共线类相位匹配调谐曲线；分析了走离角对非线性系数和群速匹配的影响；计算了参量过程的允许角；计算了bbo - opo的理论阈值条件；分析了饱和与泵浦光束的消耗过程；给出了转换效率与超过泵浦阈值的倍数的关系；讨论了转换效率与输出镜反射率的关系；讨论了线宽控制的各种方法；研究了利用非稳腔改善光束质量的方法；考虑了bbo晶体的设计。 - When the nopa was operated at amplification , the epr states with amplitude - quadrature correlation and phase - quadrature anticorrelation were generated firstly in 1999 . the product of the amplitude and phase quadrature correlation degrees was 0 . 727 0 . 004 < 1 ; after the laser source was reconstructed , the epr beams with amplitude - quadrature anticorrelation and phase quadrature correlation were obtained in 2001 and the product of the correlation degrees was 0 . 332 0 . 003 when the nopa was operated at deamplification . 2
参量放大过程产生的纠缠光束具有正交振幅正关联、正交位相反关联的特性，乘积关联度为0 . 727 0 . 004 1 ；改进光源后，利用参量反放大( deamplification )过程产生了正交振幅反关联、正交位相正关联的明亮epr纠缠光束，乘积关联度达到0 . 332 0 . 003 1 。 - From three - wave coupling equations , the optimal crystal length , conversion efficiency and parametric light pulse width are computed numerically when clbo is used in picosecond optical parametric amplification . the results present that clbo are suited for optical parametric amplification in short wave band . in order to get higher conversion efficiency , the crystal length should be optimized according to the intensities of pump and signal waves
从三波耦合方程出发，对clbo用于皮秒级光参量放大时，最佳晶体长度、转换效率和参量光的脉冲宽度进行了理论分析和数值模拟，结果表明clbo晶体适合在短波范围作光参量放大，为达到高的转换效率和窄脉宽的信号光输出，泵浦光和初始入射信号光的强度应根据晶体长度取最优化值。