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    • 7. 发明授权
    • Optical switch having spatial light modulators
    • 具有空间光调制器的光开关
    • US5379358A
    • 1995-01-03
    • US171505
    • 1993-12-21
    • Lee L. Blyler, Jr.Richard J. Coyle, Jr.Gary J. GrimesAnthony J. Serafino
    • Lee L. Blyler, Jr.Richard J. Coyle, Jr.Gary J. GrimesAnthony J. Serafino
    • G02F1/13G02B6/24G02B6/28G02B6/36G02F1/31H04Q3/52G02B6/26
    • G02F1/31G02B6/2804
    • Replacing costly electro-optic or fused quartz crystalline structures or molded plastic optical waveguide splitters with an optical switch comprising an array of spatial light modulators between two relatively, thick, optical glass flats. Associated with each spatial light modulator are partial holes in the optical glass flats with the partial holes being in alignment with the spatial light modulator. Using a new experimentally-developed laser technique, these holes can be drilled to a precise depth so that the distance between the ends of standard silica optical fibers inserted into opposing holes approximates the diameter of those fibers. Since the diameter of a partial hole is insignificant compared to the overall area of an optical glass flat, the physical strength of the optical glass flats is not reduced even when a number of partial holes are drilled into the optical glass flats. In addition, since thick optical glass flats are used, the contrast ratio and switching speed of such an optical switch is not impaired.
    • 用光学开关代替昂贵的电光或熔融石英晶体结构或模制塑料光波导分离器,光开关包括两个相对较厚的光学玻璃平板之间的空间光调制器阵列。 与每个空间光调制器相关联的是光学玻璃平板中的部分孔,部分孔与空间光调制器对准。 使用新的实验开发的激光技术,可以将这些孔钻入精确的深度,使得插入相对孔中的标准二氧化硅光纤的端部之间的距离近似于这些光纤的直径。 由于与光学玻璃平板的总面积相比,部分孔的直径不显着,因此即使在光学玻璃平板上钻出多个部分孔,光学玻璃平板的物理强度也不会降低。 此外,由于使用厚的光学玻璃平板,所以不会损害这种光开关的对比度和切换速度。