English translation for "unstable cavity"
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- 不稳定谐振器
Related Translations:
- Example Sentences:
| 1. | 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。 | | 2. | In the part of the experimental designs , a experimental configuration of an unstable cavity by use of two bbo crystals compensating the walkoff effect and pumped by reflection is presented , and two set of controlling systems designs of open and closed loop are also presented ; we realized closed loop controlling system of bbo optical parametric oscillator tuning system , by using american general scanning inc . ' s controller to control bbo crystal ' s rotation , and scaled the output wavelength with charge coupled device
在实验设计上给出了利用两块bbo晶体补偿走离效应返回式泵浦非稳腔的实验设计，设计了开环和闭环两套控制系统。通过使用美国通用扫描公司的扫描头控制bbo晶体的转动，用ccd对bbo - opo输出波长进行标定，实现了bbo - opo调谐系统的闭环控制，相对波长调谐误差小于0 . 04 ，并给出了354 . 7nm泵浦的类相位匹配bbo - opo输出波长随晶体转角变化的理论和实验曲线。 | | 3. | The tuning curve of type - i phase matching of bbo opo are measured with accuracy ; the maximum conversation in total of the system is about 31 % at 615 . 6 nm , and it is fitted well with the gtp formula ; in the end we compared the output linewidth and unstable cavity far field beam qua lity of the bbo opo under the condition of type - i phase matching and type - ii phase matching , it is proved that we can obtain the parametric output of linewidth less than 0 . 3 nm and the beam divergence angle approaching diffraction limits by take the advantages of type - ii phase matching and unstable cavity designs
测量了该系统的转换效率最大为31 ，并能与理论公式极好地吻合，最后比较了在类相位匹配条件下和类相位匹配条件下的bbo - opo的输出线宽，以及非稳腔的远场光束质量，实验结果表明，利用类相位匹配以及非摘要稳腔设计可以获得线宽小于0 3nlm 、光束发散角接近衍射极限的参量光输出。 |
- Similar Words：
- "unstable blocking oscillator" English translation, "unstable blood pressure" English translation, "unstable body" English translation, "unstable break in moment" English translation, "unstable burning" English translation, "unstable channel" English translation, "unstable characteristic curve" English translation, "unstable chemical" English translation, "unstable chemical equilibrium" English translation, "unstable circuit" English translation
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