Abstract

We have observed a novel type of parametric oscillation in sodium atomic vapor where four off-axis signal waves simultaneously build up under resonant and counterpropagating pump beams with elliptical beam profiles. The four waves, two of them Stokes shifted and the other two anti-Stokes shifted, have similar output powers of up to $10\mathrm{mW}$ with a conversion efficiency of 30% and are parametrically coupled by electromagnetically induced diffraction.

© 2007 Optical Society of America

Four-wave parametric oscillation: theory and observations

Ken-ichi Harada, Nobuhito Hayashi, Kenji Mori, and Masaharu Mitsunaga
J. Opt. Soc. Am. B 25(1) 40-47 (2008)

Electromagnetically induced diffraction in sodium vapor

Ken-ichi Harada, Satoshi Tanaka, Tatsuya Kanbashi, Masaharu Mitsunaga, and Koji Motomura
Opt. Lett. 30(15) 2004-2006 (2005)

Parametric oscillation in sodium vapor by using an external cavity

Junji Okuma, Nobuhito Hayashi, Akihiko Fujisawa, Masaharu Mitsunaga, and Ken-ichi Harada
Opt. Lett. 34(5) 698-700 (2009)

Parametric four-wave mixing processes in sodium vapor

Y. Shevy and M. Rosenbluh
Opt. Lett. 12(4) 257-259 (1987)

Observation of amplified reflection by degenerate four-wave mixing in atomic sodium vapor

D. M. Bloom, P. F. Liao, and N. P. Economou
Opt. Lett. 2(3) 58-60 (1978)