Abstract
Generation of high peak power [1] and high focal intensity from Nd:glass short-pulse lasers is receiving much attention, particularly in large laser facilities where fast ignition [2] may be used for high-gain inertial confinement fusion. Optical parametric chirped pulse amplification (OPCPA) [3] has been recently studied as an alternative techology for the front end of a short-pulse Nd:glass laser. This is the result of superior characteristics of OPCPA when it is used for broadband amplification at wavelengths near 1 µm. It offers increased bandwidth over amplification in Nd:glass, while its gain is several orders of magnitude higher than that of Ti:sapphire at 1 µm, eliminating the need for regenerative amplification. Additionally, OPCPA exhibits high prepulse contrast as a result of cavityless amplification, which is of great importance for high-fidelity target experiments. Other favorable characteristics of OPCPA include high peak power scalability through large-aperture potassium dihydrogen phosphate (KDP) crystals [4] and potential high average power scalability due to negligible thermal deposition.
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Jovanovic, I., Schmidt, J.R., Ebbers, C.A. (2004). Optical Parametric Chirped-Pulse Amplification in Periodically-Poled KTiOPO4 at 1053 nm. In: Krausz, F., Korn, G., Corkum, P., Walmsley, I.A. (eds) Ultrafast Optics IV. Springer Series in OPTICAL SCIENCES, vol 95. Springer, New York, NY. https://doi.org/10.1007/978-0-387-34756-1_47
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DOI: https://doi.org/10.1007/978-0-387-34756-1_47
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