A difforent frequency generation of nonlinear optical crystals of AgGaSe_2 and AgGaS_2 has been analyzed based on the three-wave coupled equation and energy consesrvation in the phase-matching of type-Ⅰand type-Ⅱ.
经过数值模拟计算,得到了在Ⅰ类和Ⅱ类相位匹配条件下,泵浦波长分别取不同值时差频调谐波长与调谐角度的理论曲线。
Based on the calculation and discussion on the phase-matching,walk-off angle,acceptance angle and effective nonlinear coefficient for the KTP crystal,and on the numerical simulations of the angle-tuning curve and gain curve,the tuning spectrum and cutting angle of the KTP was finally established as 1.
讨论了KTP-OPO的相位匹配,计算了KTP的走离角、允许角和有效非线性系数,数值模拟了角度调谐曲线和增益曲线,从而确定了调谐范围为1。
Energy conversion process and spatial distribution of forward-propagating signal wave and backward-propagating wave of sum frequency under phase-matching condition were investigated.
基于电磁场理论,推导了无耗非线性左手材料中三波耦合的波混合方程,并研究了相位匹配条件下正向信号波与逆向和频波的能量转换过程及其空间分布。
The principles of laser frequency transformation and the theory of phase matching in nonlinear optic crystals are also discussed.
在总结激光频率变换的原理和非线性光学晶体的相位匹配理论的基础上，可以根据相位匹配理论进行晶体的相位匹配角的计算。
We have realized the phase matching of optical parametric oscillator in KTP crystal pumped by doubled YAG laser in the quasi-degenerate region theoretically and obtained the condition of interactions of Type Ⅱ (A) and Type Ⅱ (B) in KTP in this region.
从理论上研究了近简并区内倍频YAG激光(532nm)泵浦KTP晶体光参量振荡器位相匹配的实现。
A numerical analysis method used for calculating phase matching with the parametric effect is put forward, the phase mismatching from the material and waveguide dispersion of the fiber in the parametric effect is calculated by the numeric method and the spatial curvature surfaces of phase mismatching Changed with both pump light wavelength and frequency shift between the pu.
研究了几种掺杂情况下光纤折射率的变化导致光纤零色散波长的变化，提出一种用于参量过程中位相匹配的数值分析方法，对光纤中材料色散与波导色散引起的参量过程中的位相失配进行了数值分析，给出相应的随泵浦波长和泵浦与信号间的频移而变化的位相失配空间曲面，结果表明，在零色散波长附近有最大的频移可满足位相匹配，且此规律不随零色散波长移动而发生变
Influence of phase match between input signal and CCD pixel on the MTF;
输入信号与CCD像元位相匹配对调制传递函数的影响
With the definition of the contrast transfer function (CTF), the modulation transfer function (MTF) mathematics-theory relationship of line-array fiber-optics image bundles was established, the influence of phase match between input signal and line-array fiber-optic image bundles on the modulation transfer function was carried out by digital analysis, and the study of experiment was working.
结果表明,输入信号与线列光纤传像束的位相匹配对调制传递函数有一定的影响。
The next, the influence of phase match between input signal and line-array fiber-optic image bundles on the contrast transfer function was analysed digitally.
其次，采用数值计算的方式，分析了输入方波信号与光纤束位相匹配对对比度调制传递函数的影响。
Influence of refraction on phase matching in frequency doubling;
晶体倍频中光波折射对相位匹配的影响
The phase matching characteristics of the second harmonic generation in biaxial crystals with CW frequency turning;
常用双轴晶体连续调谐倍频时的相位匹配特性
In this article,the conversion efficiency of the third harmonic generation induced by second-order cascading in nonlinear photonic crystals is analysed when quasi-phase matching is satisfied.
运用非线性耦合波理论 ,分析了在非线性光子晶体中 ,通过二阶过程产生三次谐波的准相位匹配条件。
nonlinear phase-matching effect
非线性相位匹配效应
Quasi-phase Matched PPKTP Fabrication and Relative Application Research;
准相位匹配PPKTP的研制及有关应用研究
Phase-Matched Filter: Application to the Identification of Surface Waves;
相位匹配滤波器在面波检测中的应用
Researches Into Quasi-Phase-Matching Nonlinear Optical Frequency Conversion;
准相位匹配非线性光频转换理论研究
Fabrication of PPLN Waveguide Second Harmonic Generation Quasi-phase Matched;
准相位匹配PPLN倍频波导的制备
Studies on THz Radiation Waveguides Based on Phase-matched Optical Rectification
相位匹配光整流THz辐射波导的研究
LBO Type-Ⅰ critical Phase-matched Intracavity Sum-frequency Mixing 555 nm Laser
LBOI类临界相位匹配内腔和频555nm激光器
Quasi-phase Matched Crystals Fabrication and Relative Technology Research;
准相位匹配晶体的制备及其相关技术的研究
The Research on Quasi-Phase-Matched Optical Parametric Generation Based on Periodically Poled Crystal;
周期极化晶体准相位匹配光学参量产生的研究
Study on Broadband Femtosecond Optical Parametric Amplification Based on Quasi-Phase Matching;
宽带准相位匹配飞秒光参量放大的研究
On Inhomogeneous Periodical Interval of Quasi-Phase-Matching Optical Parametrical Oscillator;
准相位匹配光参变振荡非均匀周期间隔
LBO type-I critical phase-matched intracavity sum-frequency mixing 572nm yellow laser
LBO I类临界相位匹配腔内和频572nm黄光激光器
Different-Order Quasi-Phase Matching Harmonics in Quasiperiodic Ferroelectric Crystals
准周期铁电晶体中不同阶次的准相位匹配谐频
Matched-Phase Denoising for Linear Frequency Modulation Signals
基于相位匹配的线性调频信号的去噪处理
Influence of the polarization dueing to the output mirror on the efficiency of Ⅱ-type non critical phase match
输出镜反射性对Ⅱ类相位匹配倍频效率的影响
Temporal Properties of Quasi-phase Matching Cascaded Optical Parametric Generation
准相位匹配级联光参量产生器时域特性研究
Excitation and Transmission of Quasi-Phase-Matched Solitons in Quadratic Crystals
二次晶体中准相位匹配孤子的激发与传输
Accurate Near-Field Signal Direction-of-Arrival Estimation Based on Signal Phase Match Algorithm
基于信号相位匹配原理的目标方位估计的近场修正方法