1 kW, 10 mJ, 120 fs coherently combined fiber CPA laser system

Abstract

An ultrafast fiber chirped-pulse amplification laser system based on coherent combination of 16 ytterbium-doped rod-type amplifiers is presented. It generates 10 mJ pulse energy at 1 kW average power and 120 fs pulse duration. A partially helium-protected, two-staged chirped-pulse amplification grating compressor is implemented to maintain the close to diffraction-limited beam quality by avoiding nonlinear absorption in air.

References in corpus (5)

• 10.4 kW coherently combined ultrafast fiber laser
• 1kW 1mJ 8-channel ultrafast fiber laser
• Kilowatt-average-power compression of millijoule pulses in a gas-filled multi-pass cell
• 23 mJ high-power fiber CPA system using electro-optically controlled divided-pulse amplification
• Fiber laser-driven gas plasma-based generation of THz radiation with 50-mW average power

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• Optimized matching conditions for self-guided laser wakefield accelerators
• Beam dynamics challenges in linear colliders based on laser-plasma accelerators