非线性效应

• Trying to operate beyond the limiting intensity would create unwanted nonlinear effects in components of the laser , impairing the beam quality and even damaging the components
  如果尝试在极限强度之上运转，雷射元件便会产生不当的非线性效应，轻微则降低光束品质，严重甚至会损坏元件。
• Although xpm can cause system performance degradation , it finds significant applications in all - optical high speed signal processing , since its response time is very
  尽管交叉相位调制对系统性能有较大影响，由于其非线性效应的瞬态响应特性，在高速率全光信号处理方面它却有其独特的用处。
• The method for third harmonic generation of large - aperture high - power solid laser is described which is the second nonlinear effect of two cascade crystals in this paper
  摘要叙述了大口径高功率固体激光器，利用两块级联晶体的二阶非线性效应，对激光输出进行谐波转换，实现三次谐波输出的方法。
• Finally , the author has made some suggestions and data about geometric non - linear effect and spatial self - bracing function on aseismatic design of multi - storey and highrise concrete frame structure
  最后，对抗震设计中考虑几何非线性效应及空间相互作用对多高层框架结构的影响提供一些参考建议和资料。
• However , owing to the assumptions of weak dispersion and weak nonlinearity , the standard boussinesq equations derived by peregrine are restricted to shallow water areas and to small nonlinear
  但经典boussinesq方程( peregrine )只具有弱非线性和弱色散性，限制了其仅适用于浅水区域和弱非线性效应情况。
• However , in the pulse application fields , the output pulse energy from single mode fiber lasers or amplifiers is limited by amplified spontaneous emission ( ase ) , nonlinear effect and facet damage
  在脉冲激光应用领域中,这类小芯径光纤放大器和激光器的输出脉冲能量受限于自发辐射放大、非线性效应以及光纤的端面损伤。
• In the case of ultrashort laser pulse , the effect of finite pulse length is anlyzed , and self - steepening in the front of the pulse will occur when only relativistic nonlinearity is considered
  同时，对于超短脉冲传输，分析了有限脉冲宽度效应对傍轴方程的修正，当只考虑相对论性非线性效应时将会引起激光脉冲前沿自陡峭。
• Furthermore , a numerical filter method is applied to eliminate some undesired short waves generated as the program runs , which prevents the computed results of the numerical model from distortions
  在数值计算中，采用了数值过滤技术，有效地除去了由于非线性效应的相互作用而产生的极小波长谐波，保证了数值计算的准确性。
• The numerical results , comparing with those obtained by linear model , show that the nonlinear effect of permeability depending on volume strain of solid phase cannot be ignored as deformation is not too small
  与视渗透率为常数的线性模型的计算结果比较表明，在变形较大时，渗透率随固体相体积应变变化这一非线性效应不容忽视。
• This equation can completely describe light pulse transmission actions under numerous circumstances including the fiber dispersidi , attenuation and nonlinearity , and even the polarization state of light
  该方程描述了光脉冲在wdm光纤系统中的传输行为，包含了在光纤色散、损耗、非线性效应影响下含有不同偏振态的光信号传输情况。