Two-photon rubidium clock detecting 776 nm fluorescence
River Beard, Kyle W. Martin, John Elgin, Brian Kasch, Sean Krzyzewski
Abstract
two-photon transition in rubidium is a candidate for a next generation, manufacturable, portable clock that fits in a small size, weight, and power (SWaP) envelope. Here, we report the first two-photon rubidium clock stabilized by detecting 776 nm fluorescence. We also demonstrate the use of a multi-pixel photon counter as a low voltage substitute to a photomultiplier tube in the feedback loop to the clock laser.
Topics & Concepts
OpticsRubidiumPhoton countingFluorescencePhotonMaterials sciencePhysicsMetallurgyPotassiumAtomic and Subatomic Physics ResearchAdvanced Frequency and Time StandardsCardiovascular Syncope and Autonomic Disorders