电光与磁光调制实验中倍频法测量的剖析与改进  

Analysis and improvement of frequency doubling measurement in electro-optic and magneto-optic modulation experiments

作　　者：陈琳[1] 陶志阔[1] CHEN Lin;TAO Zhikuo(School of Electronic and Optical Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China)

机构地区：[1]南京邮电大学电子与光学工程学院,江苏南京210023

出　　处：《实验室科学》2023年第3期34-37,共4页Laboratory Science

基　　金：南京邮电大学教学改革项目(项目编号:JG10622JX63)。

摘　　要：针对近代光学实验中两个常设实验—电光调制与磁光调制中的倍频方法作了深入计算,剖析了实验方法中倍频现象发生的本质,建立了两个实验的有机联系。通过在电光调制实验中加入倍频方法,并设计了李萨如图方法的改进思路,使实验精度进一步提高,现象更为直观。利用数值仿真对倍频法的波形与李萨如图测量作了半定量的精度计算。提出了实验安排的合理建议以优化课程结构,丰富课程内涵,加深学生对实验现象的理解。The frequency doubling methods in electro-optical modulation and magneto-optical modulation experiments are calculated.The essence of frequency doubling phenomenon in the experimental methods is analyzed,and the organic relationship between the two experiments is established.By adding the frequency doubling method to the electro-optic modulation experiment and designing the improvement of Lissajous method,the experimental accuracy is further improved and the phenomenon is more intuitive.The accuracy of the measurement of frequency doubling method is calculated by numerical simulation.Reasonable experimental arrangement to optimize the curriculum structure are suggested.These improvements will enrich the curriculum connotation and deepen students’understanding of experimental phenomena.

关 键 词：电光调制 磁光调制 倍频法 李萨如图 

分 类 号：O436.4[机械工程—光学工程]