摘要
为了研究液晶的电控双折射效应在光通信中的应用,采用偏光干涉方法,对液晶透射比随电压的变化情况进行了理论分析和实验验证。在室温20℃下利用岛津UV-3101PC分光光度计,通过改变加在液晶盒两端的电压,获得了入射光波长为1300nm和1550nm时液晶透射比随电压的变化关系曲线。结果表明,当在液晶盒两端加上2V的电压时,波长在1550nm附近有一个比较稳定的高透射带;加2.3V的电压时,波长在1300nm附近有一个比较稳定的高透射带。这一结果对光通信中液晶器件的设计是有帮助的。
In order to study the birefringence effect of liquid crystal in communication, the transmission of liquid crystal electric-dependent was analyzed by means of the polarized light interference method and tested with a UV-3101PC spectral photometer at room temperature 20℃. The electro-optic effect of liquid crystal was studied by altering voltages at wavelengths of 1300nm and 1550nm. The result showed that there was a high transmission bandwidth nearby 155Onto when the voltage was 2V of the liquid crystal, and there was a high transmission bandwidth nearby 1300ran when the voltage was 2. 3V of the liquid crystal. The conclusion is helpful for designing of liquid crystal device in communication.
出处
《激光技术》
CAS
CSCD
北大核心
2011年第2期242-244,共3页
Laser Technology
基金
中国博士后科学基金资助项目(20090460691)
关键词
光电子学
双折射效应
液晶
透射比
光通信
optoelectronics
birefringence effect
liquid crystal
transmission
optical communication
