Pulses shorter than two optical cycles at 90 MHz repetition rate and 200 mW average power are demonstrated using a Kerr-lens modelocked Ti:sapphire laser with improved dispersion compensation. The pulse formation is explained by dispersion-managed soliton generation. An initial application of this source to ultra high resolution optical coherence tomography is demonstrated.
U. Morgner, F. X. Kärtner, S. H. Cho, J. Fini, Y. Chen, W. Drexler, H. A. Haus, J. G. Fugimoto, E. P. Ippen, V. Scheuer, M. Tilsch, and T. Tschudi, "Pulses Shorter than Two Optical Cycles from a Ti:sapphire Oscillator," in Advanced Solid State Lasers, M. Fejer, H. Injeyan, and U. Keller, eds., Vol. 26 of OSA Trends in Optics and Photonics (Optical Society of America, 1999), paper TuA3.
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