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Book Chapter

Yb:YAG-Pumped, Few-Cycle Optical Parametric Amplifiers

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Fattahi, H. (2016). Yb:YAG-Pumped, Few-Cycle Optical Parametric Amplifiers. In R. Viskup (Ed.), High Energy and Short Pulse Lasers. InTech Open.

Cite as: https://hdl.handle.net/21.11116/0000-0006-26E3-F
In this chapter, the principle, design, and characteristics of high-efficiency, short-pulse-pumped, few-cycle optical parametric chirped-pulse amplification (OPCPA) systems are reviewed. To this end, the feasibility of two techniques to increase the conversion efficiency of few-cycle OPCPA systems is demonstrated and discussed. The techniques result in 2.5 mJ, 7.5 W pulses and correspond to a pump-to-signal conversion efficiency of 30%. The broadband amplified spectrum supports 5.7 fs. Finally, the feasibility of extending the amplified spectrum to a near-single-cycle regime by using the combination of different crystals and phase matching is shown.