title: Operation of an optically coherent frequency comb outside the metrology lab.
abstract: We demonstrate a self-referenced fiber frequency comb that can operate outside the well-controlled optical laboratory. The frequency comb has residual optical linewidths of < 1 Hz, sub-radian residual optical phase noise, and residual pulse-to-pulse timing jitter of 2.4 - 5 fs, when locked to an optical reference. This fully phase-locked frequency comb has been successfully operated in a moving vehicle with 0.5 g peak accelerations and on a shaker table with a sustained 0.5 g rms integrated acceleration, while retaining its optical coherence and 5-fs-level timing jitter. This frequency comb should enable metrological measurements outside the laboratory with the precision and accuracy that are the hallmarks of comb-based systems.
authors.forename: L C
authors.initials: LC
authors.lastname: Sinclair
authors.forename: I
authors.initials: I
authors.lastname: Coddington
authors.forename: W C
authors.initials: WC
authors.lastname: Swann
authors.forename: G B
authors.initials: GB
authors.lastname: Rieker
authors.forename: A
authors.initials: A
authors.lastname: Hati
authors.forename: K
authors.initials: K
authors.lastname: Iwakuni
authors.forename: N R
authors.initials: NR
authors.lastname: Newbury