Optical distortion of phase conjugates made in high-gain degenerate, optical parametric amplifiers (OPA) using three-wave mixing is discussed theoretically. The distortion is shown to be less severe than predicted by low-gain formulas. This result applied also to four-wave OPA’s in transmission configurations.
© 1980 Optical Society of America
Frederic A. Hopf, "Optical distortion in phase conjugation in high-gain three-wave mixing," J. Opt. Soc. Am. 70, 1379-1381 (1980)