57 W, 27 fs pulses from a fiber laser system using nonlinear compression
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- Eidam, T., Röser, F., Schmidt, O. et al. Appl. Phys. B (2008) 92: 9. doi:10.1007/s00340-008-3048-9
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We report on the generation of 27 fs pulses with an average output power of 57 W and a repetition rate of 78 MHz. The pulses are generated by combining a high average power fiber chirped pulse amplification (FCPA) system with a microstructured large-mode-area fiber for nonlinear compression. The FCPA system delivers 270 fs pulses in a linearly polarized beam with diffraction-limited quality. Nonlinear compression is achieved by launching the pulses into a short (few cm) piece of microstructured fiber and subsequent compression by a pair of chirped mirrors.