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FASTLITE
45-47 RUE CROULEBARBE
75013 PARIS
FRANCE
Tel.: +33 (0)1 45 30 12 96
Fax : +33 (0)1 45 30 12 97
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info@fastlite.com
www.fastlite.com |
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Phazzler systems : Dual mode pulse shaping and pulse characterization system
The Phazzler systems are programmable pulse shaping and pulse characterization devices based on the Dazzler pulse shapers.
In addition to its inherent pulse shaping capability, the Phazzler also provides for the characterization of the spectral phase and spectral intensity of the ultrafast laser pulses.
The Phazzler systems provide for the most recognized pulse measurement and pulse characterization methods, such as:
All of these features are available from a single instrument by simply flipping a computer switch, and without having to change the optical alignment.
No moving parts! No complex calibration required! The built-in Dazzler handles all the linear operation that are required for SPIDER, FROG and Autocorrelation techniques , such as generating pulse replicas, applying delays between replicas and generating linear chirps.
As a result, all operations are performed in line, without having to spread the optical wavelengths in space.
All these techniques have been proposed and demonstrated to measure the time dependent phase and amplitude of ultrashort pulses, however each technique suffers from specific weaknesses:
 Spectral Phase Interferometry for Direct Electric field Reconstruction (SPIDER) requires a precise calibration and determination of the relative delay between two pulse replicas.
SH-FROG suffers from time ambiguity and the phase retrieval process is not straightforward.
Autocorrelators, while useful tools to characterize tghe pulse intensity and duration, do not provide spectral phase information.
Cross checking between autocorrelators, SPIDER and SH-FROG is often difficult as it involves separate measurement devices, which multiplies the causes of experimental errors, such as calibration of the detectors and dispersion of the optical elements.
The Phazzler, thanks to the quantitative nature of the Dazzler, brings to the user the capability of comparing the measurement results using different methods with the same instruments, and without any re-alignment. The Phazzler drastically enhances the reproducibility, the reliability as well as consistency of the results, making it a unique reference tool for researchers involved in ultrafast science.
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The Phazzler includes:
 An AOPDF or turn key Dazzler pulse shaping system, with its associated RF arbitrary waveform generator and its acousto-optic crystal
A Phazzler optical head, including the Dazzler crystal, optical components and SHG crystal, and a spectrometer
The Phazzler software
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Phazzler systems have been adapted to the different ultrafast laser designs, meeting their specific requirements.
Each implementation has been engineered to provide an efficient tool for:
 High repetition rate laser (>100Hz)
Laboratories or industries involved with
Femtobiology and Femtochemistry based research usually operate fiber based or solid state ultrafast laser sources, with wavelength extension devices,
thus operating in the UV, visible and NIR ranges. Fastlite offers these
laboratories available Phazzler for the visible and NIR ranges. UV Phazzlers are currently under development.
More on these Phazzlers ...
Low repetition rate Ti:Sa lasers (<100 Hz)
Ultra high power, low rep rates Ti:Sa CPA require single shot capabilities, and operation over wide bandwidths.
More on this Phazzler..
Low repetition rate Nd:Glass lasers (<100 Hz)
Ultra high power, low rep rate large scale Nd:Glass require single shot capabilities , and operation over narrow bandwidths.
More on this Phazzler...
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