Abstract

Self-pumped phase conjugation is generally believed to be attributed to degenerate four-wave mixing. Accordingly, the phenomenon requires the existence of three waves at certain interaction regions for the excitation of the fourth one. Although this condition is not satisfied by a train of femtosecond pulses with a repetition rate of 110 MHz, we have observed self-pumped conjugate pulses retroreflected by a BaTiO₃ crystal. The conjugate character of the pulses is demonstrated with the distorter method.

© 1996 Optical Society of America

Generation of self-pumped phase conjugation from the -c face of BaTiO₃ with femtosecond pulses

Changxi Yang, Kaoru Minoshima, Katuo Seta, Hirokazu Matsumoto, and Yong Zhu
Appl. Opt. 38(9) 1704-1708 (1999)

Propagation and self-pumped phase conjugation of femtosecond laser pulses in BaTiO₃

Changxi Yang
J. Opt. Soc. Am. B 16(5) 871-877 (1999)

Mutually pumped phase conjugator with a rainbow configuration in BaTiO₃:Ce crystal using nanosecond pulses

Huitian Wang, Nobukazu Yoshikawa, Shin Yoshikado, and Tadashi Aruga
Opt. Lett. 21(8) 561-563 (1996)

High-quality self-pumped phase conjugation of nanosecond pulses at 532 nm using photorefractive BaTiO₃

L. Mager, C. Laquarnoy, G. Pauliat, M. H. Garrett, D. Rytz, and G. Roosen
Opt. Lett. 19(19) 1508-1510 (1994)

Mechanism transformation with wavelength of self-pumped phase conjugation in BaTiO₃:Ce

Yingwu Lian, S. X. Dou, Hong Gao, Yong Zhu, Xing Wu, Changxi Yang, and Peixian Ye
Opt. Lett. 19(9) 610-612 (1994)