Optical phase conjugation in KNSBN, Pr-doped KNSBN, and Cu-doped SBN

Yang Yong Yuan; Haiying Xu; Youlong Yu; Kebin Xu; Yuhuan Xu; De-Rui Zhu; Huanchu Chen; Qinglun Zhang

doi:10.1117/12.18313

1 May 1990 Optical phase conjugation in KNSBN, Pr-doped KNSBN, and Cu-doped SBN

Yang Yong Yuan, Haiying Xu, Youlong Yu, Kebin Xu, Yuhuan Xu, De-Rui Zhu, Huanchu Chen, Qinglun Zhang

Proceedings Volume 1220, Nonlinear Optics; (1990) https://doi.org/10.1117/12.18313
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

Theoretical and experimental results are presented for degenerate four-wave mixing In photorefractive KNSBN crystals. The angular dependence of transient- state and steady -state phase- conjugate reflectivities R in undoped and Pr -doped KNSBN have been measured respectively. Applied field dependence of phase - conjugate reflectivity in undoped KNSBN shows that transient-state R exceeds 260 and steady - state R can reach 122% at applied field E0 =5 kV/cm. By comparison ,Pr as a new impurity to provide a variety trapping centers in KNSBN crystals makes the response time about 3 times less. The probe intensity dependence of the response time and the steady phase- conjugate reflectivity in degenerate four -wave mixing within Cu-doped SBN is given.

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Yang Yong Yuan, Haiying Xu, Youlong Yu, Kebin Xu, Yuhuan Xu, De-Rui Zhu, Huanchu Chen, and Qinglun Zhang "Optical phase conjugation in KNSBN, Pr-doped KNSBN, and Cu-doped SBN", Proc. SPIE 1220, Nonlinear Optics, (1 May 1990); https://doi.org/10.1117/12.18313

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