title: Frequency metrology with a turnkey all-fiber system.
abstract: The repetition rate and carrier-envelope phase offset frequencies of a turnkey, all-fiber-based continuum generator were phase locked to a hydrogen maser. The frequency of the hydrogen maser was calibrated with a highly stable cesium atomic clock, and therefore a fully phase-locked optical frequency comb with well-defined absolute frequencies was obtained. In contrast with the commonly used Ti:sapphire-laser-based systems, we have accomplished a fully turnkey system with no user-adjustable parts. To evaluate the performance of this novel system, we performed absolute frequency measurements in the telecommunications region and at 1064 nm and compared them with our traditional Ti:sapphire-based comb.
authors.affiliation: National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan. t.schibli@aist.go.jp
authors.forename: T R
authors.initials: TR
authors.lastname: Schibli
authors.forename: K
authors.initials: K
authors.lastname: Minoshima
authors.forename: F L
authors.initials: FL
authors.lastname: Hong
authors.forename: H
authors.initials: H
authors.lastname: Inaba
authors.forename: A
authors.initials: A
authors.lastname: Onae
authors.forename: H
authors.initials: H
authors.lastname: Matsumoto
authors.forename: I
authors.initials: I
authors.lastname: Hartl
authors.forename: M E
authors.initials: ME
authors.lastname: Fermann