Abstract
We have examined the frequency spectrum of the blue light generated via four-wave mixing in a rubidium vapor cell inside a ring cavity. At high atomic density and input laser power, two distinct frequency components separated by are observed, indicating alternate four-wave mixing channels through the hyperfine states. The dependence of the generated light on excitation intensity and atomic density are explored, and they indicate that the primary process has saturated. This saturation results when the excitation rate through the state becomes equal to the rate through the state, giving no further gain with atomic density while a quadratic intensity dependence remains.
© 2019 Optical Society of America
Full Article | PDF ArticleMore Like This
E. Brekke and S. Potier
Appl. Opt. 56(1) 46-49 (2017)
Yong Sup Ihn, Kwang-Kyoon Park, Yosep Kim, Young-Tak Chough, and Yoon-Ho Kim
J. Opt. Soc. Am. B 34(11) 2352-2357 (2017)
Natalia R. de Melo and Sandra S. Vianna
J. Opt. Soc. Am. B 31(7) 1735-1740 (2014)