Abstract
When two beams of different frequency interact in a medium with a local nonlinear optical response, one beam experiences gain at the expense of the other. We refer to this process as nondegenerate two-wave mixing. Figure 1 shows measurements of the nondegenerate two- wave mixing gain for a weak probe beam interacting with a strong pump beam in a crystal of Cr:YAlO3. The laser wavelength is 515 nm and the probe is downshifted with respect to the pump by approximately 5 Hz. Gain in excess of 12 times is obtained.
© 1996 Optical Society of America
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