Nondegenerate four-wave mixing in a double-Lambda system under the influence of coherent population trapping

摘要

Nondegenerate four-wave mixing (NDFWM) in a double-Lambda system of Rb atomic vapor was achieved for collinear pump fields. By comparison of different pump-probe configurations, direct experimental evidence of influence of coherent population trapping on the output power of the NDFWM signal was established. A maximal efficiency for generating the NDFWM signal exists for a moderate pump power in this double-Lambda system. (C) 1998 Optical Society of America. [References: 10]