论文部分内容阅读
给出了磁光隔离器的最佳化设计方法并编成计算机程序。研制成功φ120毫米口径的隔离器,实验和理论计算值相符,误差小于2％。
磁光隔离器的最佳化研究
【摘 要】
：
给出了磁光隔离器的最佳化设计方法并编成计算机程序。研制成功φ120毫米口径的隔离器,实验和理论计算值相符,误差小于2％。
【机 构】
：
中国科学院上海光机所
【出 处】
：
中国激光
【发表日期】
：
1983年10期
其他文献
We suggest tailoring of the illuminations complex degree of coherence for imaging specific two-and three-point objects with resolution far exceeding the Rayleigh limit. We first derive a formula for t
Thermal and luminescent properties of 2 μm emission in thulium-sensitized holmium-doped silicate-ger
In this paper, we present the luminescent properties of Tm3 ∕Ho3 co-doped new glass. A series of silicategermanate glass was prepared by the conventional melt-quenching method. In the Tm3 ∕Ho3 co-doped silicategermanate glass, a strong emission of 2 μm
提出一种环形非稳腔结构,该结构将传统驻波非稳腔腔内的非共轭像差校正转换为共轭像差校正。搭建了百瓦级环形非稳腔Nd∶YAG板条激光器,采用59单元自适应光学系统对腔内像差进行校正。利用980 nm参考光束和 Shack-Hartmann波前传感器测量腔内像差,采用加权最小二乘法复原波前像差,最后用倾斜镜和变形镜进行校正。最终在低抽运功率下将输出功率从105.8 W提高到113.1 W,光束质量β 因子从6.98优化到2.33。该研究为环形非稳腔应用于高功率固体激光器并获取高输
Fast-forming focused spots through a multimode fiber based on an adaptive parallel coordinate algori
We propose an adaptive parallel coordinate (APC) algorithm for quickly forming a series of focused spots at a multimode fiber (MMF) output by controlling the MMF input field with a spatial light modulator (SLM). Only passing over the SLM once, we can obta
Coherent beam combining of 107 beams has been demonstrated for the first time to the best of our knowledge. When the system was in closed loop, the pattern in far-field was stable and the fringe contrast was
期刊
A quasi-optical single-sideband (quasi-OSSB) modulation approach with a tunable carrier-to-sideband ratio (CSR) is proposed and demonstrated. By simply tuning the polarizing angle, a continuously tunable CSR can be obtained. Since the upper sideband is hi
Past research has demonstrated that digital Fresnel holograms can be binarized in a non-iterative manner by downsampling the source image with a grid lattice prior to the hologram generation process. The reconstructed image of a hologram that is binarized
用两种响应时间相差很大的光折变晶体Ce:SBN和Fe:LiNbO3作为相位共轭麦克尔逊干涉仪的两个相位共轭镜,得到同一物体的两个有时间差的相位共轭像,再对这两个像做实时“异或”运算,就能实现仅对物体随时间变化部分的成像.这种方法可以大大增加两相位共轭镜的响应时间差,具有最小可探测速度低,输出信号强、输出保持时间长的优点.文中对此作了理论分析,并提供了该系统对真实物体成像的实验结果.
钕磷酸盐玻璃目前被认为是激光聚变放大器系统的最好材料，因为它的受激发射截面大，非线性折射系数小。至今已报导了用于此种系统的锁模源振荡器方案的许多种类。然而，看来没有一个能满足其对锁模稳定性及与放大器匹配的波长苛刻的要求。
期刊