, Volume 87, Issue 3, pp 395-398
Date: 25 Apr 2007

Generation of 60-nJ sub-40-fs pulses at 70 MHz repetition rate from a Ti:sapphire chirped pulse-oscillator

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We have studied the influence of the intracavity dispersion on the mode-locking characteristics of pure-Kerr-lens mode-locked Ti:sapphire chirped-pulse oscillators. Using the results of this study, we have built chirped-pulse oscillators that can be mode-locked when pumped with the highest pump powers commercially available at 532 nm. We generated 62 nJ pulses at 70 MHz repetition rate, with a Fourier limited duration of 33 fs.


42.60.Fc; 42.60.Lh; 42.65.Re