Experimental Investigation on Holographic Intormation Storage in Photorefractive Crystal Cu-Doped KNSBN II. a Study on the Energy Transfer in Two Wave Coupling

Tang Andong; Li Yulin; Kong Yue; Zhao Mingjun

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Experimental Investigation on Holographic Intormation Storage in Photorefractive Crystal Cu-Doped KNSBN II. a Study on the Energy Transfer in Two Wave Coupling

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- Experimental Investigation on Holographic Intormation Storage in Photorefractive Crystal Cu-Doped KNSBN II. a Study on the Energy Transfer in Two Wave Coupling
- Optics and Precision Engineering Vol. 1, Issue 1, Pages: 87-92(1993)
- 作者机构：
  
  中国科学院西安光机所西安,710068
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：11 December 1992，
  
  Published Online：15 February 1993，
  
  Published：15 February 1993
- 稿件说明：
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汤安东, 李育林, 孔玉娥, 赵明君. 光折晶体Cu:KNSBN的双光束耦合——能量转移研究[J]. 光学精密工程, 1993,(1): 87-92

Tang Andong, Li Yulin, Kong Yue, Zhao Mingjun. Experimental Investigation on Holographic Intormation Storage in Photorefractive Crystal Cu-Doped KNSBN II. a Study on the Energy Transfer in Two Wave Coupling[J]. Editorial Office of Optics and Precision Engineering, 1993,(1): 87-92
汤安东, 李育林, 孔玉娥, 赵明君. 光折晶体Cu:KNSBN的双光束耦合——能量转移研究[J]. 光学精密工程, 1993,(1): 87-92 DOI：

Tang Andong, Li Yulin, Kong Yue, Zhao Mingjun. Experimental Investigation on Holographic Intormation Storage in Photorefractive Crystal Cu-Doped KNSBN II. a Study on the Energy Transfer in Two Wave Coupling[J]. Editorial Office of Optics and Precision Engineering, 1993,(1): 87-92 DOI：

摘要

二波耦合是研究光折晶体特性和品质的一种重要方法。本文着重分析基于光析变理论的二波耦合能显转移原理

研究所得的Cu:KNSBN晶体的增益系数γ与两光束入射角20的关系

以及ρ与光束比β的关系曲线。测量结果显示:Cu:KNSBN晶体具有大的τ值。最后

本文还报告了该晶体的高频时间调制传输特性

以及测得的衍射效率η与光束夹角20及调制频率f的关系曲线。

Abstract

Two wave coupling is an important method to investigate the characteristics and qualities of photorefractive crystal.This paper represents our results

measured

based on the principle of energy transfer in two wave coupling which is included in the theory of photorefractive effect

for the relationship between the gain coefficient of two wave coupling F and the crossing angle of the beam 29

and also r as a function of beam ratio p. The results indicate that F of the Cu:KNSBN crystal is big. At last

high frequency temporal modulation characteristics of this crystal bulk and the function of diffraction efficiency as the crossing angle of the beam 29 and the frequency of modulation f are described respectively.

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