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Proceedings Paper

High dynamic range measurement of the pulse contrast in a Ti:sapphire/Nd:glass multiterawatt laser
Author(s): Ana Castanheira; Luís Cardoso; Hugo Pires; Gonçalo Figueira
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Paper Abstract

We describe the design and implementation study of a high dynamic range, third order contrast-ratio measurement diagnostic for a high power laser chain. The device, known as Optical Parametric Amplification Correlator (OPAC) is based on degenerate three-wave mixing in a nonlinear crystal, it is self-referencing and compact. By measuring the idler pulse with a slow detector and a set of calibrated filters, a dynamic range of up to 1010 is achievable. The pulse contrast is to be characterized at the mJ-level, 10 Hz, Ti:sapphire pre-amplifier stage, in a time window of 100 ps.

Paper Details

Date Published: 26 July 2011
PDF: 6 pages
Proc. SPIE 8001, International Conference on Applications of Optics and Photonics, 80014F (26 July 2011); doi: 10.1117/12.894534
Show Author Affiliations
Ana Castanheira, Instituto Superior Técnico (Portugal)
Luís Cardoso, Instituto Superior Técnico (Portugal)
Hugo Pires, Instituto Superior Técnico (Portugal)
Gonçalo Figueira, Instituto Superior Técnico (Portugal)


Published in SPIE Proceedings Vol. 8001:
International Conference on Applications of Optics and Photonics
Manuel Filipe Costa, Editor(s)

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