title: Accurate measurement of carrier-envelope phase drift for infrared femtosecond laser pulses.
abstract: A novel scheme to eliminate the artificial background phase jitter is proposed for measuring the carrier-envelope phase drift of tunable infrared femtosecond pulses from an OPA laser. Different from previous methods, a reference spectral interference measurement is performed, which reveals the artificial phase jitter in the measurement process, in addition to the normal f-to-2f interference measurement between the incident laser pulses and it second harmonic. By analyzing the interference fringes, the accurate CEP fluctuation of the incident pulses is obtained.
authors.affiliation: State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O. Box 800-211, Shanghai 201800, China.
authors.forename: Liwei
authors.initials: L
authors.lastname: Song
authors.forename: Chunmei
authors.initials: C
authors.lastname: Zhang
authors.forename: Jianliang
authors.initials: J
authors.lastname: Wang
authors.forename: Yuxin
authors.initials: Y
authors.lastname: Leng
authors.forename: Ruxin
authors.initials: R
authors.lastname: Li