Title :
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
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;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.686735
