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"Real-time characterization and optimal phase control of tunable visible pulses with
a flexible compressor" P. Baum, S. Lochbrunner, L. Gallmann, G. Steinmeyer, U. Keller, E. Riedle Appl. Phys. B 74 [Suppl.], S219 - S224 (2002) Abstract: The output pulses of a noncollinearly phase matched optical parametric amplifier (NOPA) are fully characterized by spectral phase interferometry for direct electric-field reconstruction (SPIDER). The SPIDER setup has been optimized for online diagnosis of tunable visible pulses with a 1-kHz repetition rate and 10 - 40 fs duration. The compression of the NOPA pulses by different prism sequences and commercially available chirped mirrors is investigated. For flexible phase control the end mirror of a fused silica prism compressor has been replaced by a deformable mirror. With an evolutionary strategy guided by the spectral phase information of the SPIDER, optimal compression of the NOPA pulses to a 7.6-fs duration is achieved. BMO authors (in alphabetic order): Peter Baum Stefan Lochbrunner Eberhard Riedle Order Hardcopy |