System and method for using a holographic optical element in a wireless telecommunication system receiver

一种全息光学组件(HOE)设备(26)安装在接收机单元(24)如无线光通信系统接收机中。HOE设备包括一种已显影的乳化材料，上面有一个已记录的干涉图样，夹在一对组件之间，例如夹在一对透明玻璃板之间。在操作时，HOE设备使用一个已记录的干涉图样使入射光线(30，32)发生衍射，射向系统接收机的光处理单元。光处理单元包括一个光电探测器(34)用于检测发生衍射的光线。系统接收机可以包括各种其他元件及/或采用各种配置。一种配置是使用多个镜子控制来自HOE设备的光线方向，一个准直光学设备对光线进行校准。可以采用一个分光光学设备将光线分成一个跟踪信道和一个通信信道。 A holographic optical element (HOE) device is mounted in a receiver unit, such as a wireless optical telecommunication system receiver. The HOE device includes a developed emulsion material having an interference pattern recorded thereon, sandwiched between a pair of elements, such as a pair of clear glass plates. In operation, the HOE device uses the recorded interference pattern to diffract incident light rays towards an optical processing unit of the system receiver. The optical processing unit includes a photodetector that detects the diffracted light rays. The system receiver can include various other components and/or can have various configurations. In one configuration, a plurality of mirrors is used to control the direction of the light rays coming from the HOE device, and a collimating optical assembly collimates these light rays. A beam splitting optical assembly can be used to split the light rays into a tracking channel and a communication channel.