Spatial-frequency characteristics of the reflectivity and transmissivity of a BaTiO3 phase conjugator (PC) combined with extraordinary rays are investigated and numerical results obtained. It is shown that the reflection of a BaTiO3 PC represents a high-pass or a bandpass filter, whereas its transmission represents a low-pass or a bandpass filter. In addition, the filtering characteristics of this PC can be chosen by using appropriate values of such parameters as the average incident-beam angle from the c axis, the pump-beam intensity ratio, and the applied external electric field. A BaTiO3 PC exhibits characteristics that are quite different from those of a Bi12SiO20 PC, since the latter obtains only a high- or low-spatial-frequency filter.
© 1987 Optical Society of America
Original Manuscript: November 1, 1985
Manuscript Accepted: May 27, 1987
Published: September 1, 1987
Osamu Ikeda, "Low-pass, high-pass, and bandpass spatial-filtering characteristics of a BaTiO3 phase conjugator," J. Opt. Soc. Am. B 4, 1387-1391 (1987)