| 基于1/4波片晶体电光调制输出特性的理论分析 |
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| 引用本文： | 陈国杰,周红仙,谢嘉宁,路洪,余汉铭.基于1/4波片晶体电光调制输出特性的理论分析[J].大学物理,2011,30(2):28-30,49. |
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| 作者姓名： | 陈国杰 周红仙 谢嘉宁 路洪 余汉铭 |
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| 作者单位： | 佛山科技学院,理学院,广东,佛山,528000 |
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| 基金项目： | 广东省《大学物理实验》精品课程项目资助;广东省物理实验教学示范中心项目资助 |
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| 摘 要： | 根据铌酸锂晶体电光调制原理,推导了电光调制器透光率与1/4波片光轴方位的数学通式,通过数值计算分析了基于1/4波片晶体电光调制的输出特性.结果表明,波片每旋转π/4,周期性依次出现线性调制、非倍频失真和倍频失真,与实验结果相符.
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| 关 键 词： | 电光调制 LiNbO3 晶体 1/4波片 |
Theoretical analysis on output characteristic of crystal electro-optic modulator based on quarter-wave plate |
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| CHEN Guo-jie,ZHOU Hong-xian,XIE Jia-ning,LU Hong,YU Han-ming.Theoretical analysis on output characteristic of crystal electro-optic modulator based on quarter-wave plate[J].College Physics,2011,30(2):28-30,49. |
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| Authors: | CHEN Guo-jie ZHOU Hong-xian XIE Jia-ning LU Hong YU Han-ming |
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| Institution: | CHEN Guo-jie,ZHOU Hong-xian,XIE Jia-ning,LU Hong,YU Han-ming(School of Science,Foshan University,Foshan,Guangdong 528000,China) |
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| Abstract: | An equation of the modulator optical transmittance and the optical axis orientation of the quarter-wave plate is derived according to the principle of LiNbO3 crystal electro-optic modulation.The output characteristic of the crystal electro-optic modulation based on the quarter-wave plate is analyzed by numerical calculation.The result shows that whenever the quarter-wave plate rotates an angle of π/4,the linear modulation,non-frequency doubling modulation or frequency doubling modulation periodically occurs in turn,and this is in agreement with the experimental result. |
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| Keywords: | LiNbO3 |
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