论文部分内容阅读
光开关是实现多光路电子切换器件的重要组成元件。提出一种基于液体棱镜的光开关,该光开关由一个液体棱镜与一个双孔挡光板组成。初始状态下,液-液界面为凸面形状,入射光经过液体棱镜后会聚到挡光板中央,被挡光板阻挡反射吸收,表现为光关状态。当把电压施加在液体棱镜单侧时,为光开状态。并且当在两侧同时施加电压时,液-液界面形变为凹面形状,入射光束发生发散,此时表现为同时光开状态。实验结果表明,该器件在自适应液体光开关中具有较快的响应时间(上升时间:~85 ms;下降时间:~140 ms)以及较高的光衰减度(~965∶1)特性。提出的光开关在光阀、可调光衰减器以及光路由器等方面有着潜在的应用价值。
Optical switch is to achieve multiple optical electronic switching device is an important component. An optical switch based on liquid prism is proposed. The optical switch is composed of a liquid prism and a double-hole light-blocking plate. In the initial state, the liquid-liquid interface has a convex shape. The incident light converges to the center of the light barrier through the liquid prism and is blocked and reflected and absorbed by the light barrier, showing the light-off state. When the voltage is applied to one side of the liquid prism, it is in the light state. When the voltages are simultaneously applied to both sides, the liquid-liquid interface is deformed into a concave shape, and the incident light beam is diverged. In this case, the light is turned on at the same time. Experimental results show that the device has fast response time (rise time: ~ 85 ms; fall time: ~ 140 ms) and high optical attenuation (~ 965: 1) in the adaptive liquid optical switch. The proposed optical switch has potential applications in light valves, dimmable attenuators and optical routers.