Ultrafast Ytterbium Doped INNOSLAB Amplifier with High Average Power

Mans, T.; Rußbüldt, P.; Weitenberg, Johannes; Rotarius, G.; Hoffmann, D. H. H.; Poprawe, Reinhart

doi:10.1364/cleo.2009.cthj2

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Spectrum and Pulse Duration1

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2011

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“…At repetition rates below 3MHz Kerr lensing/self phase modulation can be observed which limits the achievable pulse energy to 60µJ at sub-picosecond pulse durations. It has been shown that for a different resonator geometry of the Innoslab amplifier the B-integral can be reduced by a factor of two [5] and therefore pulse energies exceeding 100µJ should be attainable at a slightly reduced amplification of the whole setup. Figure 5, left).…”

Section: Spectrum and Pulse Durationmentioning

confidence: 99%

Highly flexible ultrafast laser system with 260W average power

et al. 2011

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A flexible ultrafast laser amplifier system based on Ytterbium Innoslab technology with an average power exceeding 200W is presented. The pulse duration of the system can be continuously tuned between 500fs and 6ps, limited only by the amplification bandwidth of Yb:YAG and the stretcher of the seed source. The repetition rate can be varied from 26.6MHz down to 1MHz. For the ps-regime more than 200J and for the fs-regime more than 50J are demonstrated without the need of temporal compression of the high power beam after the amplifier. Spectral bandwidth is close to the transform limit of the shortest measured pulses. Beam quality is measured to be near the diffraction limit (M2<1.3)

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Section: Spectrum and Pulse Durationmentioning

confidence: 99%