光学学报, 2000, 20 (11): 1553, 网络出版: 2006-08-09
初级能量平衡
Primary Energy Balance
摘要
针对“神光Ⅱ”精密化的要求, 采用半波片和 偏振片组合衰减装置精确控制光束能量, 达到能量平衡。 简要论述了半波片组合衰减器的 工作原理。 采用独特的方法, 对高精度光电探头和半波片的特性进行了检测。 在此基础上 , 运用自动控制技术进行智能调节, 实现了闭环自动控制模拟实验, 达到了均方根为2%的激 光能量控制精度。
Abstract
To meet the need of precision for high power laser system, SHENGUANG Ⅱ, assembly of half-wave plate and polarizers is used to pre cisionly control the beam energy. The principles of attenuator assembly of half -wave plate and polarizers are discussed briefly. The characteristics of high p recision photoelectric detector and half-wave plate are measured by a special w ay. Then, automation technology is applied to intelligent adjustment. An energy precision of 2%(rms) is obtained in closed loop automation simulation experiment s.
黄杰, 蔡希洁, 林尊琪, 黄杰, 蔡希洁, 林尊琪. 初级能量平衡[J]. 光学学报, 2000, 20(11): 1553. 黄杰, 蔡希洁, 林尊琪, 黄杰, 蔡希洁, 林尊琪. Primary Energy Balance[J]. Acta Optica Sinica, 2000, 20(11): 1553.