2k-Grating-assisted self-pumped phase conjugation: theoretical and experimental studies

Abstract

We investigated 2k-grating-assisted self-pumped phase conjugation in photorefractive Ce:BaTiO₃ crystals. The phase-conjugation process involves a combination of four-wave mixing and stimulated photorefractive backscattering. An approximation involving separate interaction regions is used to theoretically calculate the reflectivity of phase conjugation as a function of the coupling strength of four-wave mixing and stimulated photorefractive backscattering. In our experiments, grating-erasure techniques are employed at the interaction regions to investigate the dependence of phase-conjugate reflectivity on the coupling strength of four-wave mixing and stimulated photorefractive backscattering. The experimental results are in good agreement with the theoretical prediction.

© 1996 Optical Society of America

Theoretical study on effects of stimulated photorefractive backscattering in self-pumped phase conjugators

S. X. Dou, Jiasen Zhang, M. G. Wang, Hong Gao, and Peixian Ye
J. Opt. Soc. Am. B 12(6) 1056-1064 (1995)

Effect of reflection and 2K gratings on self-pumped phase-conjugate mirrors: theoretical and experimental studies

S. X. Dou, Mingjun Chi, Hongwei Song, Xinya Zhang, Yong Zhu, and Peixian Ye
J. Opt. Soc. Am. B 16(3) 428-434 (1999)

Studies on formation mechanisms of self-pumped phase conjugation in BaTiO₃:Ce crystals at wavelengths from 570 to 680 nm

S. X. Dou, Hong Gao, Jiasen Zhang, Yingwu Lian, Huitian Wang, Yong Zhu, Xing Wu, Changxi Yang, and Peixian Ye
J. Opt. Soc. Am. B 12(6) 1048-1055 (1995)

Self-pumped phase-conjugation properties of cerium-doped BaTiO₃ crystals in the near infrared

S. X. Dou, Yingwu Lian, Hong Gao, Yong Zhu, Xing Wu, Changxi Yang, and Peixian Ye
Appl. Opt. 34(12) 2024-2032 (1995)

Investigation into self-pumped and mutually pumped phase conjugation with beams entering the negative c face of doped (K_0.5Na_0.5)_0.2(Sr_0.75Ba_0.25)_0.9Nb₂O₆ crystals

Jingwen Zhang, Huimin Liu, and Weiyi Jia
Appl. Opt. 36(16) 3753-3761 (1997)