title: Absolute frequency measurement of an acetylene-stabilized laser at 1542 nm.
abstract: The absolute frequency of an acetylene-stabilized laser at 1542 nm is measured at its second harmonic (771 nm) by use of a femtosecond optical comb based on a mode-locked Ti:sapphire laser. Frequency stability and reproducibility of the acetylene-stabilized laser are evaluated by the femtosecond comb with a H maser as a frequency reference. The absolute frequency of a laser diode stabilized on the P(16) transition of 13C2H2 is determined to be 194 369 569 383.6(1.3) kHz. The acetylene-stabilized laser serves as an important optical frequency standard for telecommunication applications.
authors.affiliation: National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 3, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan. f.hong@aist.go.jp
authors.forename: Feng-Lei
authors.initials: FL
authors.lastname: Hong
authors.forename: Atsushi
authors.initials: A
authors.lastname: Onae
authors.forename: Jie
authors.initials: J
authors.lastname: Jiang
authors.forename: Ruixiang
authors.initials: R
authors.lastname: Guo
authors.forename: Hajime
authors.initials: H
authors.lastname: Inaba
authors.forename: Kaoru
authors.initials: K
authors.lastname: Minoshima
authors.forename: Thomas R
authors.initials: TR
authors.lastname: Schibli
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Matsumoto
authors.forename: Ken'ichi
authors.initials: K
authors.lastname: Nakagawa