| 1. | This thesis is devoted to various studies involving quasi - phase matched optical parametric oscillator
为此，在本文中，我们对准位相匹配的光学参量振荡器进行了一系列的研究。 |
| 2. | Two kinds of bright epr entangled beams were experimentally generated by means of nondegenerate optical parametric amplifier ( nopa )
利用非简并光学参量放大器从实验上产生了两种明亮epr纠缠态光场。 |
| 3. | With a wide - spectrum tunable output , optical parametric oscillator ( opo ) extends the laser wavelength and meets diversified needs
光学参量振荡器( opo )可以产生宽范围可调谐激光输出,它的出现拓宽了激光波长,使之可以满足各种应用需要。 |
| 4. | In recent years , interest in opo ' s has been renewed by advances in stable pump lasers and improvements in nonlinear optical material
近年来随着高质量的激光光源的获得及准位相匹配晶体的实用化，连续光学参量振荡器重新引起了人们的极大关注。 |
| 5. | 3 ) the quantum noise characteristics of the output of tropo are theoretically analyzed and the intensity - diflerence squeezing of two down - conversion beams was experimental obtained . the intensity - difference noise reduction was 0 . 4db
第三章：讨论了三共振光学参量振荡器的量子噪声特性，并实现了两下转换光之间的强度差压缩，压缩度达0 . 4db 。 |
| 6. | And then the theoretic technique of import the periodically wave of periodically poled crystals in the process of opo was studied , the theoretical method was realized by using period poled crystal in quasi - phase - matched optical parametric oscillation
研究了将周期极化晶体的周期波矢引入光学参量振荡过程,利用周期极化晶体实现准相位匹配光学参量振荡的理论方法。 |
| 7. | The resonance - enhanced multi - photon ionization ( rempi ) spectrum of no in the region of 420 - 680nm is obtained by using optical parameter generator and amplifier ( opg / opa ) as radiation source . the opg / opa was pumped by nd : yag ( quantel ) laser
本工作以超短脉冲( 35ps ) nd ： yag激光的三倍频输出( 355nm )泵浦光学参量发生放大器作为激发源，获得了no分子在420 680nm波长范围内的多光子共振离化光谱。 |
| 8. | Laser diode or flash lamp pumped solid state lasers with different wavelength and different operating styles . wavelength tunable laser sources with tial2 o3 laser and optical parametric oscillator laser application machines with laser display , laser material procession
各种波长及各种运转方式的激光二极管及闪光灯泵浦的固体激光器；采用钛宝石及光学参量振荡器的波长可调谐的激光光源；激光应用整机。 |
| 9. | Then , on the basis of coupled wave equations , theoretically studies of opo threshold parameters and of the conversion efficiency and of linewidth control are presented . several principles of the optimum design for opo are discussed . the experimental investigations of noncritical phase matching
以耦合波方程为基础,分析和计算了光学参量振荡器的转换效率、抽运阈值、谱线宽度等特性,并在此基础上讨论了如何选择opo的各项参数。 |
| 10. | Tn order to eliminatc the error caused hylight power drift of incident light , we adopt the method of the ration of scattering light to measure the concentration of protein in milk . that is to measure 90 " scattering light intensity and 0 " transmitting light intensity in the light incident plane . the ratio of them is to be used to express measured optical parameter
由于牛乳蛋白质的测量精度要求很高，为了消除因入射光的光功率漂移而引起的误差，我们采用散透比法来测量牛乳蛋白质的含量，即在光的入射平面内同时90处的散射光光强is和测量0处的透射光光强it ，用它们的比值来表征测试牛乳蛋白质含量的光学参量。 |
