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    • 1. 发明授权
    • Compact polarization dependent optical switching units
    • 紧凑的偏振相关光开关单元
    • US5345321A
    • 1994-09-06
    • US994012
    • 1992-12-21
    • Michael C. DeJuleThomas L. CredelleNabeel A. RizaDonald E. Castleberry
    • Michael C. DeJuleThomas L. CredelleNabeel A. RizaDonald E. Castleberry
    • G02F1/31H01Q3/26G02F1/1335H01Q3/22
    • G02F1/31H01Q3/2676
    • A compact optical switching unit includes a spatial light modulator coupled to a delay assembly such that incident light beams are respectively selectively directed along either a direct path or a delay path dependent on the linear polarization of the light beam. The delay assembly includes a light deflection device, such as a polarizing beam splitter, coupled to a delay path apparatus, such as mirror prisms or fiber optic cable. A compact and readily fabricated cascade of optical switching units includes polarizing beam splitter blocks and polarization rotation switch blocks, a portion of which constitutes the polarizing beamsplitters and spatial light modulators in respective optical switching units sequentially optically coupled. Delay path apparatuses disposed along an axis orthogonal to both the axis of beams passing along a direct path through polarizing beam splitter switches on the direct path and the axis between respective optical switching units result in a compact optical architecture.
    • 紧凑的光学开关单元包括耦合到延迟组件的空间光调制器,使得入射光束分别根据光束的线性偏振而沿着直接路径或延迟路径选择性地定向。 延迟组件包括耦合到诸如镜面棱镜或光纤电缆的延迟路径装置的偏转光束分离器的光偏转装置。 紧凑且容易制造的光学开关单元的级联包括偏振分束器块和偏振旋转开关块,其一部分构成顺序光学耦合的相应光学开关单元中的偏振分束器和空间光调制器。 延伸路径装置沿着与通过直接路径的光束轴正交的轴正交,通过直接路径上的偏振分束器开关和各个光开关单元之间的轴产生紧凑的光学架构。
    • 4. 发明授权
    • Compact polarization independent optical switching units
    • 紧凑型偏振无关光开关单元
    • US5319477A
    • 1994-06-07
    • US994011
    • 1992-12-21
    • Michael C. DeJuleThomas L. CredelleNabeel A. RizaDonald E. Castleberry
    • Michael C. DeJuleThomas L. CredelleNabeel A. RizaDonald E. Castleberry
    • G02B6/28G02B27/28H01Q3/26G02F1/1335H01Q3/34
    • H01Q3/2676G02B27/283G02B6/2861
    • A compact optical switching unit includes a polarization independent beamsplitter switch (PIBS) coupled to a delay path apparatus such that incident light beams are respectively selectively directed along either a direct path or a delay path dependent on the the manipulation of the polarization of polarized constituent light beams in the PIBS. The delay path apparatus is typically a mirror prism or fiber optic cable disposed such that light deflected onto the delay path traverses a longer distance than light passing along the direct path and thus a particular light beam can be selectively time delayed by controlling the PIBS to direct the beam into desired delay paths in a cascade of optical signal switching units. A compact and readily fabricated cascade of optical switching units includes PIBS blocks, a portion of which constitutes the PIBS in respective optical switching units sequentially optically coupled. Delay path apparatuses disposed along an axis orthogonal to both the axis of beams passing along a direct path through polarizing beam splitter switches on the direct path and the axis between respective optical switching units result in a compact optical architecture.
    • 紧凑的光学开关单元包括耦合到延迟路径装置的偏振无关分束器开关(PIBS),使得入射光束分别根据极化成分光的偏振的操纵沿着直接路径或延迟路径选择性地定向 梁中的PIBS。 延迟路径装置通常是镜面棱镜或光纤电缆,其被布置成使得偏转到延迟路径上的光线比沿着直接路径的光线穿过更长的距离,因此可以通过控制PIBS来指导特定光束被选择性地延迟 该光束成为级联的光信号切换单元中所需的延迟路径。 紧凑且容易制造的光学开关单元的级联包括PIBS块,其一部分在相应的光学开关单元中顺序光耦合构成PIBS。 延伸路径装置沿着与通过直接路径的光束轴正交的轴正交,通过直接路径上的偏振分束器开关和各个光开关单元之间的轴产生紧凑的光学架构。