Feedback-controlled femtosecond pulse shaping

被引：54

作者：

Brixner, T ^{[1
]}

Oehrlein, A ^{[1
]}

Strehle, M ^{[1
]}

Gerber, G ^{[1
]}

机构：

[1] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2000年 / 70卷 / Suppl 1期

关键词：

D O I：

10.1007/s003400000270

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe the experimental implementation of feedback-optimized femtosecond laser pulse shaping. A frequency-domain phase shaper is combined with different pulse characterization methods and appropriate optimization algorithms to compensate for any phase deviation. In particular, bandwidth-limited. amplified laser pulses are achieved by maximizing the second-harmonic generation (SHG) of the shaped laser pulses with the aid of an evolutionary algorithm. Real-time measurement of the absolute phases is achieved with spectral interferometry where the reference pulse is characterized by FROG, the so-called TADPOLE method. Using the complete electric field as feedback, arbitrary laser pulse shares can be optimally generated in two different ways. First. a local convergence algorithm can be used to apply reliable and accurate spectral chirps. Second, an evolutionary algorithm can be employed to reach specific temporal profiles.

引用

页码：S119 / S124

页数：6

共 38 条

[31] Measuring ultrashort laser pulses in the time-frequency domain using frequency-resolved optical gating [J].