, Volume 98, Issue 2-3, pp 291-294
Date: 16 Jul 2009

Carrier–envelope phase stabilization of 5-fs, 0.5-mJ pulses from adaptive phase modulator

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Abstract

We compressed high-power laser pulses to 5 fs and 0.5 mJ using a neon-filled hollow-core fiber and a high-throughput 4f system. The carrier–envelope phase of the two-cycle pulses was measured directly by using their over-one-octave output spectrum. The carrier–envelope phase was stabilized by feedback controlling the grating separation of a stretcher in a chirped pulse amplifier. To the best of our knowledge, this is the first time that carrier–envelope phase locked few-cycle pulses were generated by using an adaptive phase modulator.