| 光折变晶体中非相干光前向耦合及其对噪音栅擦除的研究 |
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| 引用本文： | 丁欣,王鹏,朱孟,姚建铨,王奎雄,李卓,禹宣伊. 光折变晶体中非相干光前向耦合及其对噪音栅擦除的研究[J]. 中国激光, 2000, 27(6): 561-566 |
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| 作者姓名： | 丁欣 王鹏 朱孟 姚建铨 王奎雄 李卓 禹宣伊 |
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| 作者单位： | 1. 天津大学精密仪器与光电子工程学院,天津,300072
2. 长春光学精密机械学院应用理学分院,长春,130022 |
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| 基金项目： | 教育部光电信息技术科学开放实验室资助项目 |
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| 摘 要： | 对光折变晶体 Ce:KNSBN中两束 e偏振简并非相干光的前向耦合进行了理论分析和实验研究 ,并通过非相干光耦合作用在实验上获得了亮环和暗环的衍射图样 ,从而获得了一种利用非相干光擦除来克服光折变晶体中扇形效应的简便方法。
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| 关 键 词： | 非相干光耦合 锥光衍射 暗环 噪音栅擦除 |
| 收稿时间： | 1998-12-15 |
Study of the Coupling of Mutually Incoherent Beams in Forward Direction and Fanning Reduction by Using Incoherent Erasure |
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| Ding Xin,Wang Peng,Zhu Meng,Yao Jianquan,Wang Kuixiong,Li Zhuo,Yu Xuanyi. Study of the Coupling of Mutually Incoherent Beams in Forward Direction and Fanning Reduction by Using Incoherent Erasure[J]. Chinese Journal of Lasers, 2000, 27(6): 561-566 |
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| Authors: | Ding Xin Wang Peng Zhu Meng Yao Jianquan Wang Kuixiong Li Zhuo Yu Xuanyi |
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| Abstract: | The coupling of two mutually incoherent beams of extraordinary polarization of degenerate wavelengths in the forward direction in photorefractive Ce:KNSBN crystal is theoretically analyzed and experimentally demonstrated. The bright and dark rings due to coupling of two incoherent beams were observed and a new method of fanning reduction by using incoherent erasure are proposed in photorefractive crystal. |
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| Keywords: | coupling of mutually incoherent beams conical diffraction dark ring fanning grating reduction |
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