物理学报2017，Vol.66Issue(2)：124-131,8.DOI:10.7498/aps.66.024201
拼接型光栅对压缩器中刻线密度差对输出脉冲的影响及补偿方案
Effect of grating groove density error on the output pulses of the tiled grating compressor and corresponding compensation scheme
摘要
Abstract
The grating groove density error (GGDE) will degrade the performance of the tiled-grating compressor,and the compensation for GGDE is of significance for improving the characteristics of the output pulses.With the ray-tracing method,analytical expressions considering GGDE are derived to predict the output beam drift and the output pulse broadening.According to the numerical results,we propose a compensation method to reduce the degradation of the tiled-grating compressor by applying angular tilt error and longitudinal piston error simultaneously.The tilt angle and the translation distance of the grating,as well as the allowable tolerance range of GGDE are obtained with this compensation method.By using the equiphase lines in the spatial-spectral interference patterns,the experimental results demonstrate that this compensation method can correct the angular drift of the output beams effectively,and compensate for the second-order and the third-order dispersion error well.Our investigation provides an efficient way to guide the adjustment of the tiled grating with GGDE.关键词
拼接光栅/光栅刻线密度差/光栅对压缩器/啁啾脉冲放大Key words
tiled grating/grating groove density error/grating-pair compressor/chirped pulse amplification引用本文复制引用
赵丹,朱启华,王逍,母杰,左言磊,周松,周凯南,曾小明,李志林,粟敬钦..拼接型光栅对压缩器中刻线密度差对输出脉冲的影响及补偿方案[J].物理学报,2017,66(2):124-131,8.基金项目
国家自然科学基金(批准号:61308040,61505188)和国家高技术研究发展计划(批准号:2015AA8043047)资助的课题.Project supported by the National Natural Science Foundation of China (Grant Nos.61308040,61505188) and the National High Technology Research and Development Program of China (Grant No.2015AA8043047). （批准号:61308040,61505188）
