Optics Letters

Frequency translation via four-wave mixing Bragg scattering in Rb filled photonic bandgap fibers

Prathamesh S. Donvalkar, Vivek Venkataraman, Stéphane Clemmen, Kasturi Saha, Alexander L. Gaeta

Published Mar 11, 2014• 23 citations

Abstract

We demonstrate frequency translation at microwatt pump power levels in Rubidium vapor confined to a hollow-core photonic bandgap fiber using four-wave mixing Bragg scattering. The 5S(1/2)→5D(3/2) two-photon transition in 85Rb is employed for the four-wave mixing process. Using continuous-wave pump beams at 780 and 795 nm, a weak signal beam at 776 nm is translated to a wavelength of 762 nm with a 21% conversion efficiency at pump powers of 300 μW.

DOI: 10.1364/ol.39.001557

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