title: Atomic frequency reference at 1033 nm for ytterbium (Yb)-doped fiber lasers and applications exploiting a rubidium (Rb) 5S1/2to 4D5/2one-colour two-photon transition.
abstract: We demonstrate a two-photon transition of rubidium (Rb) atoms from the ground state (5S1/2) to the excited state (4D5/2), using a home-built ytterbium (Yb)-doped fiber amplifier at 1033 nm. This is the first demonstration of an atomic frequency reference at 1033 nm as well as of a one-colour two-photon transition for the above energy levels. A simple optical setup is presented for the two-photon transition fluorescence spectroscopy, which is useful for frequency stabilization for a broad class of lasers. This spectroscopy has potential applications in the fiber laser industry as a frequency reference, particularly for the Yb-doped fiber lasers. This two-photon transition also has applications in atomic physics as a background- free high- resolution atom detection and for quantum communication, which is outlined in this article.
authors.forename: Ritayan
authors.initials: R
authors.lastname: Roy
authors.forename: Paul C
authors.initials: PC
authors.lastname: Condylis
authors.forename: Yik Jinen
authors.initials: YJ
authors.lastname: Johnathan
authors.forename: Björn
authors.initials: B
authors.lastname: Hessmo