Atomic frequency reference at 1033 nm for ytterbium (Yb)-doped fiber lasers and applications exploiting a rubidium (Rb) 5$S_{1/2}$ to 4$D_{5/2}$ one-colour two-photon transition

Abstract

We demonstrate a two-photon transition of rubidium (Rb) atoms from the ground state (5$S_{1/2}$) to the excited state (4$D_{5/2}$), 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.

References in corpus (1)

• Counterintuitive temporal shape of single photons

Cited by in corpus (5)

• Observation of the ${}^{87}$Rb $5S_{1/2}$ to $4D_{3/2}$ electric quadrupole transition at 516.6 nm mediated via an optical nanofibre
• Enhancement of the quadrupole interaction of an atom with guided light of an ultrathin optical fiber
• A simple, narrow, and robust atomic frequency reference at 993 nm exploiting the rubidium (Rb) $5S_{1/2}$ to $6S_{1/2}$ transition using one-color two-photon excitation
• An optical atomic clock using $4D_J$ states of rubidium
• Spectroscopy of the ${}^{85}$Rb 4$D_{3/2}$ state for hyperfine-structure determination