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。
Fibre optic communication subsystem test procedures - part 2 - 10 : digital systems - time - resolved chirp and alpha - factor measurement of laser transmitters 纤维光学通信子系统试验程序.第2 - 10部分:数字系统.测量激光发射器的时间分辨激光波长变化和因子
In the fifth chapter , the real and imaginary parts of third - order nonlinear susceptibility x ( 3 ) been measured for porous silicon dispersed into ccl3 solution 用z一扫描技术在io64run和532nm激光波长下对多孔硅的氯仿溶剂分散体系的光学非线性性质进行测量。
< uk > proof of distributed feedback was the tuning of the laser wavelength over 130 a by changing the grating period , and the absence of shift in wavelength with increasing excitation current . < / uk > < uk >存在分布反馈的证据是，改变光栅周期可使激光波长在130 a范围内变化以及波长不随激发电流的增大而移动。 < / uk >
We have developed a high precision wavemeter with an accuracy of 2 10 ^ ( - 8 ) in measuring vacuum wavelength , and a frequency measurement instrument by femtosecond modelocked laser with an accuracy of commercial cs standard 为了适应研究工作的需要，研制了高精度激光波长计，测量真空波长的准确度可达2 10 ^ ( - 8 )的量级，同时研制了飞秒锁模激光的测频装置，目前的测量精度可与小铯钟的精度相同。
Measurements had been performed under a ps laser excitation at 1064nm and 532nm using the z - scan technique . the real part of x ( 3 ) showed positive nonlinearity for both measured wavelength . nonlinear absorption evidently existed that attributed to saturation absorption process 在1064lun和532run激光波长下，多孔硅的实部均为一个正值，样品存在明显的非线性吸收，这种吸收与饱和吸收相对应。
The laboratory can provide calibration service for the measurement of the wavelength of any laser having a nominal wavelength of 633 nm . calibration is performed by comparing the wavelength of the laser under test with the wavelength of the standard iodine - stabilized helium - neon laser of the laboratory 本所可为波长标称值为633nm的激光器提供波长测量服务。被测试的激光波长将与本所的标准碘稳频氦氖激光器的波长比对而进行校正。
Laser interaction with target is simulated according to the model and methods given above , the state of laser plasma and x - ray transform coefficient are obtained . the effect of laser intensity and the wavelength on the state of laser plasma and x - ray transform coefficient is also presented 本文用上述模型和方法进行了大量计算，给出了激光-靶相互作用过程的物理图像，激光产生的等离子体状态， x光的转换效率等，并给出了不同的激光波长和强度对等离子体状态和x -射线的转换效率的影响。
This research is aim at putting forwarding laser wavelength scanning interference testing method . processing and analyzing instantly - read interference pattern corresponding with continuous varying wavelength , the method overcomes the following disadvantage . for example , the longer referenced and measuring optical circuit in big - scale high - accuracy asphere testing , and the sensitive interferential system to the disturb , such as the oscillation of worklable , dithering of air , and so on 研究的目的主要是针对大型高精度非球面面形检测中干涉仪的参考光路和测量光路较长，干涉系统对工作台振动和空气抖动等外界干扰因素的影响敏感，干涉图不稳定等问题，提出了激光波长扫描干涉测试方法，该方法通过对瞬间读取的、与连续变化波长对应的干涉图的处理和分析，克服了上述缺点，为大型高精度非球面的检测提供了一种适用的方法。
In this paper , we summarize the present testing level of optical aspheric surface , expound the principle of laser wavelength scanning interference testing method , and analyze the laser that can be tuned , and we also study the change of wavelength . further more , we achieve the elementary design of experiment device , curtly introduce the method for interference fringe processing and image processing by matlab 本文对目前国内外的光学非球面的测量现状作了概略的叙述，给出了激光波长扫描干涉测试方法的原理，对波长可调谐的激光光源进行了分析，对激光器波长的变化进行了研究，对实验装置进行了初步的设计，对干涉条纹图处理方法进行了研究，并通过编写matlab软件语言对干涉图进行了数字化处理。
