论文部分内容阅读
紫外激光器越来越重要
【出 处】
:
激光与光电子学进展
【发表日期】
:
1992年29期
其他文献
In this study, time resolved (TR) Monte Carlo (MC) simulation program code was run to generate photon fluencies with increasing time steps. TR MC simulation was performed for ten time series from 4 ps to 52 ps. Generated photon fluencies were transferred
期刊
针对航空、航天、船舶等制造领域大构件形貌测量的大量程、高数据密度、高效率、结构复杂等特点, 研究了一种融合光电扫描全局定位和终端形貌测量技术的大构件高分辨率几何形貌整体测量方法。通过条纹投影摄影测量系统在构件局部表面投射相位条纹, 获取高精度稠密点云, 设计了位姿测量算法, 解决了复杂现场不满足交会条件时无法实现位姿测量的问题, 在室内空间测量定位系统(workshop Measurement Positioning System, wMPS)组建的全局测量网络体系中, 对条纹投影摄影测量系统进行全局定位
Application of particle swarm optimization-based least square support vector machine in quantitative
A particle swarm optimization (PSO)-based least square support vector machine (LS-SVM) method was investigated for quantitative analysis of extraction solution of Yangxinshi tablet using near infrared (NIR) spectroscopy. The usable spectral region (5400–6
Simultaneous clock recovery and demultiplexing of a 320 Gb/s OTDM system using an optoelectronic osc
An improved optoelectronic oscillator scheme for an optical time division multiplexing (OTDM) system based on cascaded Mach–Zehnder modulator (MZM) and polarization modulator (PolM) is experimentally investigated. The system can simultaneously realize clo
脉冲光纤激光器作为当前国内外激光领域研究的热点之一,其应用越来越广泛。介绍了获取纳秒量级脉冲激光输出的两种典型结构,并基于相应原理分析了各自的关键性技术。概括了国内外该方向的研究进展,提出了有待于解决的若干问题,最后对脉冲光纤激光器的应用和发展前景进行展望。
从光学变换的基本方程出发,分析了变换所需的空间横向调制型全息透镜的相位误差,提出用计算机产生全息图和光学全息相结合的方法产生高精度的二维变换全息透镜.在实验上实现了二维32序的光学沃尔什-哈特曼变换,实验结果与理论计算一致.
Improved all-optical OR gates are proposed, using a novel fiber nonlinearity-based technique, based on the principles of combined Brillouin gain and loss in a polarization-maintaining fiber (PMF). Switching contrasts are simulated to be between 82.4%-83.6
钽铌酸钾(KTN)电光偏转器件具有角度大、电压低、无惯性和体积小等优点,近年来获得广泛关注。回顾了国内外KTN晶体器件及其应用的研究现状,阐述了基于该晶体空间电荷、组分梯度和温度梯度的电光偏转的基本原理,讨论了器件的特征参数和偏转性能的主要影响因素,介绍了几种基于KTN电光偏转的元器件及应用实例,总结了目前需要解决的问题及未来的发展趋势。
Microlasers based on high quality (Q ) whispering-gallery mode (WGM) resonance are promising low threshold laser sources for bio-sensing and imaging applications. In this Letter, dye-doped polymer microspheres were fabricated by a controll