Sensitive ultrashort pulse chirp measurement.
The chirp of an ultrashort laser pulse can be extracted with high accuracy from a modified spectrum auto-interferometric correlation waveform by using a new time domain algorithm that allows signal averaging. We display results revealing high sensitivity to chirp even with signal-to-noise levels approaching unity. Correction algorithms have been developed to accommodate signal distortion arising from bandwidth limitations, interferometer misalignment, and nonquadratic detector response.
Bender
Daniel A
DA
Department of Physics and Astronomy, Optical Science and Engineering Program, University of New Mexico, Albuquerque, New Mexico 87131, USA. dnbender@unm.edu
Hasselbeck
Michael P
MP
Sheik-Bahae
Mansoor
M