title: Precision spectroscopy of Rb atoms using single comb-line selected from fiber optical frequency comb.
abstract: We demonstrated the selection of a single comb-line from an optical frequency comb (OFC) of a mode-locked femtosecond fiber laser with a 250 MHz pulse repetition rate, and applied for precision spectroscopy of Rb atoms at 1529 nm. The single comb-line was selected from the fiber-OFC with a 1.5 GHz mode-spacing using spectral-mode-filtering and femtosecond laser injection-locking. When the repetition rate of the mode-locked femtosecond fiber laser was scanned over the range of 382.6 Hz at 250 MHz, we observed the double-resonance optical pumping spectra of the 5S(1/2)-5P(3/2)-4D(3/2) transition of Rb atoms using the selected comb-line of an OFC scanned over the range of 300 MHz at 196,037,213.8 MHz.
authors.affiliation: Department of Physics, Pusan National University, Busan 609-735, Korea. hsmoon@pusan.ac.kr
authors.forename: Han Seb
authors.initials: HS
authors.lastname: Moon
authors.forename: Han Young
authors.initials: HY
authors.lastname: Ryu
authors.forename: Sung Hun
authors.initials: SH
authors.lastname: Lee
authors.forename: Ho Suhng
authors.initials: HS
authors.lastname: Suh