Abstract
A new phase-matching geometry for third-order difference-frequency generation called polychromatic phase conjugation is demonstrated to have the ability to compress or elongate optical pulses in the picosecond region in such a way that the geometry is just scaled in time. The coupled wave equations for polychromatic phase conjugation are examined for the case of pulsed probe waves and pulsed pump waves. A possible method for experimental verification is also discussed.
© 1987 Optical Society of America
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