title: High-efficiency optical parametric chirped-pulse amplifier in BiB₃O₆ for generation of 3 mJ, two-cycle, carrier-envelope-phase-stable pulses at 1.7 μm.
abstract: We produce a 3 mJ, two-cycle (11.4 fs), 1 kHz, carrier-envelope phase (CEP)-stable laser source at 1.7 μm via a three-stage Ti:sapphire-pumped optical parametric chirped-pulse amplifier in BiB3O6. We achieve a pump-to-signal conversion efficiency of 18% in the last stage, which is, to the best of our knowledge, the highest yet achieved for near-octave bandwidth amplification. A f-to-2f measurement shows a CEP instability of 165 mrad over 1 h. This is an ideal light source for generating isolated attosecond pulses in the soft x-ray region.
authors.forename: Yanchun
authors.initials: Y
authors.lastname: Yin
authors.forename: Jie
authors.initials: J
authors.lastname: Li
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Ren
authors.forename: Kun
authors.initials: K
authors.lastname: Zhao
authors.forename: Yi
authors.initials: Y
authors.lastname: Wu
authors.forename: Eric
authors.initials: E
authors.lastname: Cunningham
authors.forename: Zenghu
authors.initials: Z
authors.lastname: Chang