液晶移相器的光电特性及其电路驱动

摘要

In order to control the voltage of each electrode of a liquid-crystal-based phased array independently, based on field programmable gate array, the voltage of electrodes of the liquid-crystal-based phased array was driven to regulate phase distribution of electrodes. Analytical and experimental results show that periodic phase distribution of the electrodes can modulate the phase of an optical beam, i.e. , scan can be accomplished. This conclusion is helpful for adjusting phase of the electrodes of a liquid-crystal-based phased array.%为了实现液晶移相器的每个光栅电极的驱动电压可以单独控制的目的,采用现场可编程门阵列编程的方法,进行了理论分析和实验验证,实现了驱动液晶移相器光栅电极的电压,以达到调整电极的相位分布.结果表明,液晶光栅电极相位的周期性分布对传输的光波可以进行相位调制,即可实现扫描.这一结果对调节液晶移相器光栅电极的相位是有帮助的.