Photorefractive incoherent-to-coherent optical converter based on anisotropic self-diffraction in BaTiO3

被引：13
作者：
Sun, CC [1 ]
Wang, B [1 ]
Chang, JY [1 ]
机构：
[1] Natl Cent Univ, Inst Opt Sci, Chungli 32054, Taiwan
来源：
APPLIED OPTICS | 1998年 / 37卷 / 35期
关键词：
D O I：
10.1364/AO.37.008247
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A photorefractive incoherent-to-coherent optical converter (PICOC) is demonstrated; conversion is accomplished by anisotropic self-diffraction in BaTiO3. The setup of the PICOC is easy, and only two writing beams are required. The diffraction efficiency reaches 50%, and the resolution is 22 line pairs (lp)/mm in a typical-size crystal. Further, the resolution reaches 40 lp/mm when a BaTiO3:Rh crystal of thickness 1.2 mm is used, and the diffraction efficiency is as high as 51%. The resolution of the PICOC can be increased effectively by reduction of the crystal thickness with no penalty for low diffraction efficiency. (C) 1998 Optical Society of America.
引用
收藏
页码：8247 / 8253
页数：7
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