高功率二氧化碳激光束监测仪

High-power CO(2) laser-beam monitor.

作者信息

Grosjean D F, Olson R A, Sarka B, Rabe D C

机构信息

Systems Research Laboratories, Inc., 2800 Indian Ripple Road, Dayton, Ohio 45440Air Force Aero Propulsion Laboratory, Wright Patterson Air Force Base, Ohio 45433.

出版信息

Rev Sci Instrum. 1978 Jun;49(6):778. doi: 10.1063/1.1135613.

DOI:10.1063/1.1135613

PMID:18699191

Abstract

A diagnostic system for measuring the beam power and quality of a high-power cw CO(2) electro-aerodynamic laser is described. A ZnSe beamsplitter was employed to split off a small fraction (0.5%) of the main laser beam for diagnostic purposes. The low-power beam was split again to provide two beams for power and energy-distribution measurements, concurrent with sample irradiation by the main beam. An electrically calibrated disk calorimeter was used to measure beam power. The temporal and spatial energy distributions were measured by means of a mechanically scanned, one-dimensional pyroelectric array. This provided a 16x16 element two-dimensional map of the beam profile at a rate of up to 10 Hz.

摘要

描述了一种用于测量高功率连续波CO(2) 电气动激光器光束功率和质量的诊断系统。采用ZnSe分束器从主激光束中分离出一小部分（0.5%）用于诊断目的。低功率光束再次被分离，以提供两束光用于功率和能量分布测量，同时主光束对样品进行照射。使用电校准盘式量热计测量光束功率。通过机械扫描的一维热释电阵列测量时间和空间能量分布。这以高达10 Hz的速率提供了光束轮廓的16×16元素二维图。