Robust orthogonal parameterization of evolution strategy for adaptive laser pulse shaping

作     者：Jafarpour, Aliakbar Savolainen, Janne de Jong, Rianne Middag, Jacob Sprunken, Daan P. van der Walle, Peter Yang, Di Herek, Jennifer L. 

作者机构：Univ Twente Opt Sci Grp MESA Inst Nanotechnol Enschede Netherlands 

出 版 物：《OPTICS EXPRESS》 (Opt. Express)

年 卷 期：2009年第17卷第14期

页      面：11986-12000页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Stichting voor Fundamenteel Onderzoek der Materie (FOM) [03TF78-3] Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO) 

主　　题：.Optimal control Femtosecond Laser robust Coherent control optimization algorithm Spectral Phase frequency-resolved phase profile adaptive laser evolution strategy direct parameterization 

摘      要：Many spectroscopic applications of femtosecond laser pulses require properly-shaped spectral phase profiles. The optimal phase profile can be programmed on the pulse by adaptive pulse shaping. A promising optimization algorithm for such adaptive experiments is evolution strategy (ES). Here, we report a four fold increase in the rate of convergence and ten percent increase in the final yield of the optimization, compared to the direct parameterization approach, by using a new version of ES in combination with Legendre polynomials and frequency-resolved detection. Such a fast learning rate is of paramount importance in spectroscopy for reducing the artifacts of laser drift, optical degradation, and precipitation. (C) 2009 Optical Society of America