公开(公告)号：US06172778B2

公开(公告)日：2001-01-09

申请号：US09355407

申请日：1999-07-27

申请人： Silviu Reinhorn ,  Asher Friesem ,  Yaakov Amitai ,  Shachar Gorodeisky

发明人： Silviu Reinhorn ,  Asher Friesem ,  Yaakov Amitai ,  Shachar Gorodeisky

IPC分类号： G02B532

CPC分类号： G02B5/32 ,  G02B5/188 ,  G02B6/3546 ,  G02B6/3598 ,  G02F1/313

摘要： A planar optical crossbar switch comprising two thin planar substrates, on each of which are recorded or attached two holographic lenses between which light propagates by means of total internal reflection. The first lens is a negative cylindrical lens, used to input the incident light signal to the substrate, and the second lens is a positive cylindrical lens. The two substrates are disposed at right angles to each other in such a way that the positive lenses are positioned one on top of the other with a spatial light modulator sandwiched between them or beneath them. A linear array of detectors collects the output signal from the negative lens on the second substrate. Light from an element in the linear array of sources is spread out, by means of the negative cylindrical holographic lens on the first substrate, across a row of the SLM, and light from a column of the SLM is focused by means of the cylindrical holographic lenses on the second substrate, onto a particular element of the linear array of output detectors. To connect a signal form the ith source in the input array to the jth detector in the output array, the value of the {i,j} pixel of the SLM matrix should be in the ON state.

摘要翻译： 一种平面光学交叉开关，包括两个薄的平面基板，每个基板都记录或连接两个全息透镜，光在其间通过全内反射传播。 第一透镜是负圆柱透镜，用于将入射光信号输入到基板，第二透镜是正柱面透镜。 两个基板以彼此成直角的方式设置，使得正透镜以夹在它们之间或其下方的空间光调制器一个位于另一个的顶部。 检测器的线性阵列从第二基板上的负透镜收集输出信号。 来自线性阵列源中的元件的光通过第一衬底上的负圆筒形全息透镜穿过SLM的一行展开，并且来自SLM的列的光通过圆柱形全息图聚焦 在第二基板上的透镜，到输出检测器的线性阵列的特定元件上。 要将信号从输入阵列中的第i个源连接到输出阵列中的第j个检测器，则SLM矩阵的{i，j}像素的值应处于ON状态。