摘要
我们采用光纤技术进行空序→时序变换的方法,能实时显示相对光强分布曲线。如果激光器的谐振腔输出的光束是TEM_(00)模,采用该法在示波器上就能实时显示出高斯曲线的全貌,可以很方便的测出激光光束的半宽度和远场发散角。该方法是定量研究激光器横模模式的新方法。
Using fibre light guide to transform spatial sequence into time sequence, displaying distribution curves of intensity of light are of real-time. If the light beam of output from laser resonant cavity is TEMoo mode, the complete picture of Gauss curve can be displayed real-time on the oscillograph employing this method. It is very convenient to measure the halfwidth and angle of divergence of far field from laser beam.This is a new method for quantitative studies in laser transverse mode.
出处
《激光杂志》
CAS
CSCD
北大核心
1992年第1期12-14,11,共4页
Laser Journal
关键词
光纤
激光器光束
发散角
测量
fibre-light guide, spatial sequence, time sequence
