title: Phase-preserving chirped-pulse optical parametric amplification to 17.3 fs directly from a Ti:sapphire oscillator.
abstract: Phase-stabilized 12-fs, 1-nJ pulses from a commercial Ti:sapphire oscillator are directly amplified in a chirped-pulse optical parametric amplifier and recompressed to yield near-transform-limited 17.3-fs pulses. The amplification process is demonstrated to be phase preserving and leads to 85-microJ, carrier-envelope-offset phase-locked pulses at 1 kHz for 0.9 mJ of pump, corresponding to a single-pass gain of 8.5 x 10(4).
authors.affiliation: Department of Physics, Swiss Federal Institute of Technology (ETH Zürich), CH-8093 Zürich, Switzerland.
authors.forename: C P
authors.initials: CP
authors.lastname: Hauri
authors.forename: P
authors.initials: P
authors.lastname: Schlup
authors.forename: G
authors.initials: G
authors.lastname: Arisholm
authors.forename: J
authors.initials: J
authors.lastname: Biegert
authors.forename: U
authors.initials: U
authors.lastname: Keller