Abstract
We have studied the four-wave-mixing oscillation obtained when a cell containing sodium and a buffer gas is enclosed in a ring cavity. The beat frequency Δν between the two counterrotating beams is shown to depend on the intensity difference (I1 − I2) between the two pump beams. The curve giving Δν as a function of (I1 − I2) is a gyro-type curve, which suggests some possible application for optical gyros.
© 1989 Optical Society of America
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