M. Fermann, B. Thomsen, V. Kruglov, J. Dudley, J. Harvey
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引用次数: 2
Abstract
Summary form only given. The amplification of ultrashort pulses to high powers in optical fiber amplifiers is usually associated with severe pulse distortion due to optical wave-breaking, limiting the usefulness of such amplifiers in ultrafast optics. For sufficiently high gain, however, an incident ultrashort pulse in a fiber amplifier with normal dispersion evolves into a a parabolic pulse which propagates in a wave-breaking free manner. Here, we report the first experimental generation and characterization of such parabolic pulses using frequency-resolved optical gating (FROG). The pulses retain their parabolic profile after self-similar propagation in standard fiber and are compressed to 70 fs pulses with 80 kW peak power.
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