title: Mechanism of phase-energy coupling in f-to-2f interferometry.
abstract: White-light generation has been used widely in single-shot f-to-2f interferometers for stabilizing the carrier-envelope (CE) phase of laser amplifiers. The accuracy of the relative phase values measured by such an interferometer is affected by fluctuations in the laser pulse energy. A simple two-step model is proposed to explain the mechanism that couples the laser energy and the CE phase. The model explains the experimentally observed dependence of the group delay between the f and the 2f pulses on the laser energy, as well as the CE phase shift caused by the pulse energy variation.
authors.affiliation: J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA.
authors.forename: Chengquan
authors.initials: C
authors.lastname: Li
authors.forename: Eric
authors.initials: E
authors.lastname: Moon
authors.forename: Hiroki
authors.initials: H
authors.lastname: Mashiko
authors.forename: He
authors.initials: H
authors.lastname: Wang
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Nakamura
authors.forename: Jason
authors.initials: J
authors.lastname: Tackett
authors.forename: Zenghu
authors.initials: Z
authors.lastname: Chang