Proceedings PaperHigh-power fiber-based chirped-pulse amplification system at 1550 nm with two amplifiers
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We report on the experimental demonstration of a fiber-based chirped-pulse amplification system using a dispersion shifted fiber as stretcher, an electro-optic modulator for frequency division, two erbium-doped fiber amplifiers (a single mode and a large mode area) and a grating pair pulse compressor. We obtained 500-nJ pulses at a repetition rate of 1 MHz. Pulse duration was under 500 fs, which is in part due to the fine control of the beam polarization maintained throughout the system.