title: Experimental implementation of optical clockwork without carrier-envelope phase control.
abstract: We demonstrate optical clockwork without the need for carrier-envelope phase control by use of sum-frequency generation between a continuous-wave optical parametric oscillator at 3.39 microm and a femtosecond mode-locked Ti:sapphire laser with two strong spectral peaks at 834 and 670 nm, a spectral difference matched by the 3.39-microm radiation.
authors.affiliation: Department of Electrical Engineering and Computer Science, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA. odmuecke@mit.edu
authors.forename: O D
authors.initials: OD
authors.lastname: Mücke
authors.forename: O
authors.initials: O
authors.lastname: Kuzucu
authors.forename: F N C
authors.initials: FN
authors.lastname: Wong
authors.forename: E P
authors.initials: EP
authors.lastname: Ippen
authors.forename: F X
authors.initials: FX
authors.lastname: Kärtner
authors.forename: S M
authors.initials: SM
authors.lastname: Foreman
authors.forename: D J
authors.initials: DJ
authors.lastname: Jones
authors.forename: L S
authors.initials: LS
authors.lastname: Ma
authors.forename: J L
authors.initials: JL
authors.lastname: Hall
authors.forename: J
authors.initials: J
authors.lastname: Ye