| 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. | 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。 |
| 3. | 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。 |
| 4. | 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 。 |
| 5. | 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。 |
| 6. | 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。 |
| 7. | So they can be used for spectroscopy , coherent communication and quantum optical studies . they also can produce various kinds of nonclassical states of light generation of squeezed vacuum below threshold , of strongly intensity - correlated twin beam above threshold and quadrature squeezing of the pump wave above threshold
同时，连续光学参量振荡器也是一种产生非经典光场的理想装置：低于阈值运转可以产生正交位相压缩真空态，高于阈值运转可以产生强度关联的孪生光子对以及反射泵浦光的正交分量压缩。 |
| 8. | Abstract : based on the elaborate study on the advance of the optical parametric oscillators in resent fifteen years , it is clearly pointed that the material foundation of the bbo - opo was provided due to the discovery of the new type nonlinear crystal bbo , lbo and clbo etc and the emerge of the high quality pump source especially the diode lasers
本文在详尽地研究了光学参量振荡器的近15年来的研究进展的基础上明确指出，由于bbo 、 lbo 、 clbo等新型非线性晶体的发现和高质量泵浦源特别是二极管激光器的出现为bbo - opo的实用化提供了物质基础。 |
| 9. | The optical parametric oscillator ( opo ) has been widely used as a wavelength tunable coherent radiation source , since it offers a broad tuning range from ultraviolet to far infrared , and some of its wavelengths are unaccessible to common laser systems , so opo has great value of application
光学参量振荡器具有可调谐的优点，调谐范围可从紫外到远红外以上，弥补了普通的激光器只能输出一种波长激光的缺点，并且覆盖了普通激光器不能达到的波长，具有很高的应用价值。 |
