Abstract.
Well-characterized pulses in the two-optical-cycle regime are demonstrated using a Kerr-lens modelocked (KLM) Ti:sapphire laser and phase-sensitive diagnostics. The oscillator employs double-chirped mirrors (DCMs) for dispersion compensation, spectral shaping via wavelength-dependent output coupling, and a semiconductor saturable absorber mirror (SESAM) for reliable operation at up to 300 mW output power and with a repetition rate of ∼90 MHz.In the discussion of the experimental results we emphasize how spectral shaping can be used most efficiently in the generation of the shortest possible pulse supported by the Ti:sapphire gain bandwidth.
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Received: 7 October 1999 / Revised version: 29 February 2000 / Published online: 24 May 2000
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Sutter, D., Gallmann, L., Matuschek, N. et al. Sub-6-fs pulses from a SESAM-assisted Kerr-lens modelocked Ti:sapphire laser: at the frontiers of ultrashort pulse generation . Appl Phys B 70 (Suppl 1), S5–S12 (2000). https://doi.org/10.1007/s003400000308
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DOI: https://doi.org/10.1007/s003400000308