Influence of spectral phase on cross-polarized wave generation with short femtosecond pulses

被引：21

作者：

Canova, L. ^{[1
]}

Albert, O. ^{[1
]}

Forget, N. ^{[2
]}

Mercier, B. ^{[1
]}

Kourtev, S. ^{[3
]}

Minkovski, N. ^{[3
]}

Saltiel, S. M. ^{[3
]}

Martens, R. Lopez ^{[1
]}

机构：

[1] ENSTA Paristech, Ecole Polytech, CNRS, Lab Opt Appl,UMR 7639, F-91761 Palaiseau, France

[2] Ecole Polytech, F-91128 Palaiseau, France

[3] Univ Sofia, Fac Phys, Sofia 1164, Bulgaria

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2008年 / 93卷 / 2-3期

关键词：

06; 60; Jn; 42; 65; Re;

D O I：

10.1007/s00340-008-3185-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper we present the first comprehensive study of the role of spectral phase on cross-polarized wave (XPW) generation using sub-30 femtosecond (fs) laser pulses. XPW generation improves the temporal contrast and shortens the pulse duration of fs chirped pulse amplification (CPA) lasers. For Ti:Sa lasers, compression below 30's is non-trivial and therefore never perfect. We therefore systematically analyze the effect of an arbitrary input spectral phase on the output spectrum and efficiency of the XPW process, both theoretically and experimentally. We derive the maximum acceptable value of residual phase for a given initial pulse duration in order to efficiently drive the XPW process for pulse shortening and contrast improvement.

引用

页码：443 / 453

页数：11

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