Jeon Sungho, Toshiyoshi Hiroshi
Appl Opt. 2017 Aug 20;56(24):6720-6727. doi: 10.1364/AO.56.006720.
We report on a bidirectional free-space optical system that is capable of automatic connection and tracking of an optical link between two nodes. A piezoelectric micro-electro-mechanical systems (MEMS) optical scanner is used to steer a laser beam of two wavelengths superposed to visually present a communication zone, to search for the position of the remote node by means of the retro-reflector optics, and to transmit the data between the nodes. A feedback system is developed to control the MEMS scanner to dynamically establish the optical link within a 10-ms transition time and to keep track of the moving node.
我们报道了一种双向自由空间光学系统，该系统能够自动连接和跟踪两个节点之间的光链路。使用压电微机电系统（MEMS）光学扫描仪来操纵叠加的两个波长的激光束，以直观地呈现一个通信区域，通过后向反射光学器件搜索远程节点的位置，并在节点之间传输数据。开发了一种反馈系统来控制MEMS扫描仪，以便在10毫秒的过渡时间内动态建立光链路并跟踪移动节点。
