title: Multikilohertz optical parametric chirped pulse amplification in periodically poled stoichiometric LiTaO3 at 1235 nm.
abstract: We demonstrate, for the first time to our knowledge, multikilohertz operation of a double-stage optical parametric chirped pulse amplifier with periodically poled stoichiometric LiTaO3 crystals, seeded by a homemade Cr:forsterite oscillator operating at 1235 nm. The repetition rate of the amplifier could easily be tuned without the use of electro-optic modulators by using a repetition-rate-tunable kilohertz pump laser operating at 532 nm and a time-synchronization unit. Amplified total (signal+idler) energies of 55.9 and 36.2 microJ were achieved at 1 and 5 kHz, respectively. After recompression, the pulse width of amplified idler pulses at 1235 nm amounted to 530 fs.
authors.affiliation: Division of Energy Systems Research, Ajou Universiy, Korea.
authors.forename: W B
authors.initials: WB
authors.lastname: Cho
authors.forename: K
authors.initials: K
authors.lastname: Kim
authors.forename: H
authors.initials: H
authors.lastname: Lim
authors.forename: J
authors.initials: J
authors.lastname: Lee
authors.forename: S
authors.initials: S
authors.lastname: Kurimura
authors.forename: F
authors.initials: F
authors.lastname: Rotermund