title: Composite frequency comb spanning 0.4-2.4 microm from a phase-controlled femtosecond Ti:sapphire laser and synchronously pumped optical parametric oscillator.
abstract: A repetition-rate-stabilized frequency comb ranging from the violet to the mid-infrared (0.4-2.4 microm) is obtained by phase locking a femtosecond Ti:sapphire laser and a synchronously pumped optical parametric oscillator to a common supercontinuum reference. The locking results have bandwidths lower than 3 kHz. By changing the locking frequencies, different relative and absolute offsets of the constituent frequency combs are achievable.
authors.affiliation: Ultrafast Optics Group, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, UK. j.sun@hw.ac.uk
authors.forename: J H
authors.initials: JH
authors.lastname: Sun
authors.forename: B J S
authors.initials: BJ
authors.lastname: Gale
authors.forename: D T
authors.initials: DT
authors.lastname: Reid