摘要
以激光束矩量分析理论为基础,给出了有效积分区域的概念.讨论了系统动态范围与有效积分区域的关系,给出了增大有效积分区域的方法.分析了在基模高斯光束和高阶厄米-高斯光束测量中,系统动态范围对光束宽度测量精度的影响.通过具体的数据,得出了实际测量中对系统动态范围的一般要求.
On the basis of the laser beam moment analysis theory, the concept ofeffective integral region is proposed. The relation between dynamic range of themeasurement system and effective integral region is discussed. The method toenlarge effective integral region is given. Taking the measurement of fundamentalGaussian beam and high order Hermite-Gaussian beam as examples, the analysis ofthe dynamic range effect on measurement precision is made. The data indicate thatthe dynamic range have no great effect on measurement precision. The properdemand for the dynamic range in laser beam measurement is also proposed.
出处
《北京理工大学学报》
EI
CAS
CSCD
1997年第2期186-188,共3页
Transactions of Beijing Institute of Technology
基金
高等学校博士学科点专项科研基金
关键词
激光束
光束质量
动态范围
测量精度
laser beam
laser beam quality
measurement
dynamic range
