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Resonance transition 795-nm rubidium laser

2003; Optica Publishing Group; Volume: 28; Issue: 23 Linguagem: Inglês

10.1364/ol.28.002336

1539-4794

William F. Krupke, Raymond J. Beach, V. Keith Kanz, Stephen A. Payne,

Cold Atom Physics and Bose-Einstein Condensates

Population inversion of the 2P1/2 and 2S1/2 levels and continuous-wave, three-level laser oscillation at 795 nm on the D1 transition of the rubidium atom has been demonstrated. Using a titanium sapphire laser as a pump source, we obtained a slope power efficiency of 54% relative to absorbed pump power, consistent with homogeneous broadening of the rubidium pump and laser transitions. The end-pumped rubidium laser performance was well described by use of literature spectroscopic and kinetic data in a model that takes into account ground-level depletion and a pump spectral bandwidth that is substantially larger than the collisionally broadened pump transition spectral width.