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Proceedings Paper

Prospects for ultrashort hybrid solid-gas high-contrast multiterawatt laser in the blue-green region
Author(s): Olivier Uteza; Vadim I. Tcheremiskine; Raphaël Clady; Gaelle Coustillier; Michel Gastaud; Stephane Gueguen; Marc L. Sentis; Philippe Spiga; Leonid D. Mikheev
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Paper Abstract

A low density medium like a gas is attractive for laser amplification due to its high breakdown threshold and scalability to very large volumes. Moreover, the non-linear index of refraction of a gas is of three orders of magnitude lower than for a solid medium that is particularly suitable for direct amplification, without pulse stretching, of high-power ultrashort pulses. Among all gas laser media, application of the photolytical XeF(C-A) laser for high energy amplification is very attractive for the development of ultra-high power laser systems up to the petawatt power level due to the XeF(C-A) broad amplification bandwidth (80 nm FWHM centered near 475 nm) and a rather high saturation fluence (~0.05 J.cm-2), as well as a very low level of Amplified Spontaneous Emission. The paper presents the strategy of the LP3 laboratory to develop a high-contrast multiterawatt femtosecond laser chain based on a hybrid (solid/gas) technology, including a Ti:Sapphire oscillator generating 50 fs pulses at 950 nm, an Optical Parametric Chirped Pulse Amplification stage, a frequency converter, and a final high-energy amplification in the photolytical XeF(C-A) amplifier. Our approach is supported by first pilot experiments of femtosecond pulse amplification in a compact photolytical XeF(C-A) amplifier.

Paper Details

Date Published: 20 September 2004
PDF: 12 pages
Proc. SPIE 5448, High-Power Laser Ablation V, (20 September 2004); doi: 10.1117/12.548408
Show Author Affiliations
Olivier Uteza, LP3, CNRS and Univ. de la Mediterranee-Aix Marseille II (France)
Vadim I. Tcheremiskine, LP3, CNRS and Univ. de la Mediterranee-Aix Marseille II (France)
P.N. Lebedev Physical Institute (Russia)
Raphaël Clady, LP3, CNRS and Univ. de la Mediterranee-Aix Marseille II (France)
Gaelle Coustillier, LP3, CNRS and Univ. de la Mediterranee-Aix Marseille II (France)
Michel Gastaud, LP3, CNRS and Univ. de la Mediterranee-Aix Marseille II (France)
Stephane Gueguen, LP3, CNRS and Univ. de la Mediterranee-Aix Marseille II (France)
Marc L. Sentis, LP3, CNRS and Univ. de la Mediterranee-Aix Marseille II (France)
Philippe Spiga, LP3, CNRS and Univ. de la Mediterranee-Aix Marseille II (France)
Leonid D. Mikheev, P.N. Lebedev Physical Institute (Russia)


Published in SPIE Proceedings Vol. 5448:
High-Power Laser Ablation V
Claude R. Phipps, Editor(s)

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