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利用电控改变固液界面湿润角的电润湿微棱镜(EMPs)技术以及双自聚焦透镜组合设计了一类新颖的可调光衰减器,并对该衰减器的衰减性能进行了原理分析和实验测量.理论分析和实验结果表明其具有良好的光衰减控制效应,在不大的电压变化范围(例如135—139V)内即可实现2—60dB的光衰减范围.该器件构思新颖,具有结构简单、容易制作的优点,经过优化后将会在光通信领域得到广泛的应用.缺点是工作电压偏高,需要进一步筛选出介电系数高的物质来作为介电绝缘层材料,以便降低工作电压,达到实际可以使用的目的.
A novel class of tunable optical attenuators is designed by the combination of electrowetting micro-prism (EMPs) and the double-focusing lens system, which are electrically controlled to change the wetting angle of the solid-liquid interface. The attenuation performance of the attenuator is analyzed theoretically. Experimental Measurement Theoretical analysis and experimental results show that it has a good optical attenuation control effect and achieves a 2-60dB optical attenuation range in a small voltage variation range (for example, 135-139V). The device has a novel concept and has a structure The advantages of simple and easy to manufacture are optimized and will be widely used in the field of optical communication.The disadvantage is that the working voltage is high and the material with high dielectric constant needs to be further selected as the material of the dielectric insulating layer so as to reduce the working voltage , To achieve the actual purpose.