Reconstruction of the time profile of femtosecond laser pulses through cross-phase modulation

Author

Lange, H. Rudiger ; France, M.A. ; Ripoche, Jean-Françoìs ; Prade, Bernard S. ; Rousseau, Pascal ; Mysyrowicz, André

Author_Institution

CNRS, Ecole Polytech., Palaiseau, France

Volume

4

Issue

2

fYear

1998

Firstpage

295

Lastpage

300

Abstract

Experimental results concerning the determination of the time profile of femtosecond laser pulses are presented. The method is based on the analysis of the changes of the laser spectrum induced at different delays by cross-phase modulation. Pulses from a 30-fs Ti:sapphire laser at 800 nm are characterized over a high dynamic range. Second-harmonic pulses at 400 nm from the same laser are also characterized, exhibiting the expected improvement in contrast ratio

Keywords

high-speed optical techniques; laser variables measurement; optical harmonic generation; optical modulation; phase modulation; sapphire; solid lasers; titanium; 30 fs; 400 nm; 800 nm; contrast ratio; cross-phase modulation; delays; femtosecond laser pulse time profile reconstruction; fs Ti:sapphire laser pulses; high dynamic range; laser spectrum; second-harmonic pulses; Autocorrelation; Laser excitation; Nonlinear optics; Optical pulse shaping; Optical pulses; Optical variables control; Probes; Pulse measurements; Pulse modulation; Ultrafast optics;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/2944.686735

Filename

686735