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Dual spectral-band interferometry for spatio-temporal characterization of high-power femtosecond lasers
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TLDR
This work combines a scanning monomode fiber approach with dual spectral-band interferometry, to correct for all phase errors occurring in this interferometer, thus allowing for the simultaneous measurement of the beam wavefront and pulse front in a collimated beam of large diameter.Abstract:
We present and demonstrate a technique called RED-SEA TADPOLE for the spatio-temporal characterization of high peak power femtosecond lasers. It retains the basic principle of an existing method, where a scanning monomode fiber is utilized in an interferometric scheme to measure the spectral amplitude and phase at all points across an ultrashort laser beam. We combine this approach with dual spectral-band interferometry, to correct for all phase errors occurring in this interferometer, thus allowing for the simultaneous measurement of the beam wavefront and pulse front in a collimated beam of large diameter. The generic phase correction procedure implemented here can also be extended to other fiber optic device applications sensitive to phase fluctuations.read more
Citations
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Fourier-transform method of fringe-pattern analysis for computer-based topography and interferometry
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Space–time characterization of ultra-intense femtosecond laser beams
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Spatiotemporal Metrology of Broadband Optical Pulses
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Spatio-temporal characterization of ultrashort laser beams: a tutorial
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References
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Journal Article
Fourier-transform method of fringe-pattern analysis for computer-based topography and interferometry
TL;DR: In this article, a fast Fourier transform method of topography and interferometry is proposed to discriminate between elevation and depression of the object or wave-front form, which has not been possible by the fringe-contour generation techniques.
Journal ArticleDOI
Fourier-transform method of fringe-pattern analysis for computer-based topography and interferometry
TL;DR: In this paper, a fast Fourier transform method of topography and interferometry is proposed to discriminate between elevation and depression of the object or wave-front form, which has not been possible by the fringe-contour generation techniques.
Journal ArticleDOI
Simultaneous spatial and temporal focusing of femtosecond pulses.
TL;DR: In this paper, the authors study and demonstrate the technique of simultaneous spatial and temporal focusing of femtosecond pulses, with the aim of improving the signal-to-background ratio in multiphoton imaging.
Journal ArticleDOI
Characterization of ultrashort electromagnetic pulses
TL;DR: In this paper, a review of advances made in the latter field over this period, indicating the general principles involved, how these have been implemented in various experimental approaches, and how the most popular methods encode the temporal electric field of a short optical pulse in the measured signal and extract the field from the data.
Journal ArticleDOI
Spatio-temporal couplings in ultrashort laser pulses
TL;DR: In this article, the authors present a discussion of the characteristics of pulses containing spatio-temporal couplings, including their sources, a mathematical description and the interdependence of different couplings.