Temporal decorrelation of short laser pulses

被引:60
作者
Peatross, J [1 ]
Rundquist, A
机构
[1] Brigham Young Univ, Dept Phys & Astron, Provo, UT 84602 USA
[2] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA
关键词
D O I
10.1364/JOSAB.15.000216
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe a unique approach for extracting the temporal profile of ultrashort laser pulses from typical autocorrelation measurements. The use of the constraint that intensity is a nonnegative quantity enables an iterative numerical algorithm to reconstruct pulse shapes in a one-dimensional procedure. With the reconstruction of the intensity profile, the Gerchberg-Saxton algorithm can be used to retrieve the phase of the electric field from a spectral measurement. Because these procedures are carried out in one dimension, they are numerically much faster than two-dimensional techniques such as frequency-resolved optical gating. Their high computational efficiency can save substantial time by constructing good trial solutions for the more accurate but slower procedure of frequency-resolved optical gating. (C) 1998 Optical Society of America.
引用
收藏
页码:216 / 222
页数:7
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