Eugeniy E. Mikhailov,Jesse Evans The College of William & Mary (United States) Dmitry Budker,Simon M. Rochester Rochester Scientific, LLC (United States) Irina Novikova The College of William & Mary (United States)
We investigate a four-wave-mixing process in an Ninteraction scheme in Rb vapor placed inside a low-finesse ring cavity. We observe strong amplification and generation of a probe signal, circulating in the cavity, in the presence of two strong optical pump fields. We study the variations in probe field gain and dispersion as functions of experimental parameters with an eye on the potential application of such a system for enhanced rotation measurements. Density-matrix calculations are performed to model the system and are shown to provide good qualitative agreement with the experiment.