title: Dissemination of optical-comb-based ultra-broadband frequency reference through a fiber network.
abstract: We disseminated an ultra-broadband optical frequency reference based on a femtosecond (fs)-laser optical comb through a kilometer-scale fiber link. Its spectrum ranged from 1160 nm to 2180 nm without additional fs-laser combs at the end of the link. By employing a fiber-induced phase noise cancellation technique, the linewidth and fractional frequency instability attained for all disseminated comb modes were of order 1 Hz and 10-18in a 5000 s averaging time. The ultra-broad optical frequency reference, for which absolute frequency is traceable to Japan Standard Time, was applied in the frequency stabilization of an injection-seeded Q-switched 2051 nm pulse laser for a coherent light detection and ranging LIDAR system.
authors.forename: Shigeo
authors.initials: S
authors.lastname: Nagano
authors.forename: Motohiro
authors.initials: M
authors.lastname: Kumagai
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Ido
authors.forename: Shoken
authors.initials: S
authors.lastname: Ishii
authors.forename: Kohei
authors.initials: K
authors.lastname: Mizutani
authors.forename: Makoto
authors.initials: M
authors.lastname: Aoki
authors.forename: Ryohei
authors.initials: R
authors.lastname: Otsuka
authors.forename: Yuko
authors.initials: Y
authors.lastname: Hanado