CEO-2D-AD Angular Dispersion
Description
Once a laser beam suffers from angular dispersion, its spectral components propagate into different directions. Hence, in the focal plane of an objective lens, the focal spot will be enlarged and distorted compared to an angular dispersion-free beam of the same size. The shape of the intensity distribution will be uniquely characteristic to spectral angular deviation. CE Optics’ new product, CEO-2D-AD offers a 2D solution for angular dispersion measurement. The broadband beam is spectrally filtered in order to create well separated peaks in the spectrum. Since these components are still overlapping spatially, we use an achromatic lens to image them onto a two-dimensional detector. In this way, the spectrally separated components of an angularly dispersed beam will appear as dissociated spots on the surface of the detector according to the orientation of the angular dispersion. This solution allows for a quick and iteration-free alignment of stretcher-compressor stages of CPA systems; or even for applications like THz wave generation or attosecond lighthouse monitoring.
CEO-2D-AD Angular Dispersion
Features
Spectral phase modulation (Chirping)
Temporal pulse broadening
Spatial chirp
Tilted pulse front
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Hungary
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Frequently Asked Questions
The CEO-2D-AD is used for angular dispersion measurement in laser beams.
The CEO-2D-AD filters the broadband beam to create well separated peaks in the spectrum. It then uses an achromatic lens to image the spectrally separated components onto a two-dimensional detector.
The side effects of angular dispersion include spectral phase modulation (chirping), temporal pulse broadening, spatial chirp, and tilted pulse front.
The features of the CEO-2D-AD include spectral phase modulation, temporal pulse broadening, spatial chirp, and tilted pulse front.
The measurement accuracy of the CEO-2D-AD is high, and it is designed for single-shot operation with easy handling. It also includes a support grating for precise measurement of close-to-zero angular dispersion.