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    • 2. 发明授权
    • Optical switch having equalized beam spreading in all connections
    • 光开关在所有连接中具有均衡的光束扩展
    • US06473544B1
    • 2002-10-29
    • US09518754
    • 2000-03-03
    • Michael DanemanBehrang BehinMeng-Hsiung KiangKam Yin Lau
    • Michael DanemanBehrang BehinMeng-Hsiung KiangKam Yin Lau
    • G02B626
    • G02B6/3582G02B6/3512G02B6/3546
    • An optical crossbar switch having refractive or reflective components for equalizing beam spreading and diffraction in all the connections. The optical fibers or waveguides coupled to the switch are not staggered, but are parallel as in a conventional fiber array. The refractive component is disposed between the switch and the input optical fibers. Preferably, a similar refractive component is disposed between the output optical fibers and the switch. The refractive component can be a stairstep block made of glass, silicon or silica. Light from each input fiber travels through a well-defined thickness of the stairstep block. Since the block has a refractive index greater than the surrounding atmosphere, the wavelength in reduced within the block, and beam spreading and diffraction are reduced.
    • 具有用于均衡所有连接中的光束扩散和衍射的折射或反射分量的光学交叉开关。 耦合到开关的光纤或波导不是交错的,而是像传统的光纤阵列那样平行。 折射分量设置在开关和输入光纤之间。 优选地,在输出光纤和开关之间设置类似的折射分量。 折射分量可以是由玻璃,硅或二氧化硅制成的稳态块。 来自每个输入光纤的光线穿过明显的厚度的步态块。 由于该块具有大于周围大气的折射率,因此在块内减少的波长以及光束扩散和衍射减小。
    • 3. 发明授权
    • Optical switch having equalized beam spreading in all connections
    • 光开关装置及组装方法
    • US06449407B1
    • 2002-09-10
    • US09518751
    • 2000-03-03
    • Meng-Hsiung KiangBehrang BehinMichael DanemanKam Yin Lau
    • Meng-Hsiung KiangBehrang BehinMichael DanemanKam Yin Lau
    • G02B635
    • G02B6/3546G02B6/3512G02B6/356G02B6/357G02B6/3572G02B6/3576G02B6/3578G02B6/3582
    • An optical switch module having a movable mirror disposed between two fixed mirrors. All three mirrors are aligned parallel to each other in a linear array to form a crossbar switch. The movable mirror moves between a first position and a second position to selectively couple optical signals between two inputs and two outputs. The basic switch module may be scaled up to form an apparatus that incorporates N movable mirrors and N+1 fixed mirrors, where N is an integer greater than zero. Such an apparatus can accommodate 2N fiber inputs and 2N fiber outputs, e.g., in an optical add/drop multiplexer (OADM). The parallel configuration of the switch module takes advantage of existing lens array and fiber V-groove technology to facilitate integration of the fibers and collimators in the module, thereby reducing the difficulty and cost associated with alignment, assembly, and packaging.
    • 一种具有设置在两个固定镜之间的可移动镜的光学开关模块。 所有三个反射镜以线性阵列彼此平行排列以形成交叉开关。 可移动镜在第一位置和第二位置之间移动,以在两个输入和两个输出之间选择性地耦合光学信号。 基本开关模块可以按比例扩大以形成一个装有N个可移动镜和N + 1个固定镜的装置,其中N是大于零的整数。 这种装置可以容纳2N个光纤输入和2N个光纤输出,例如在光分插复用器(OADM)中。 开关模块的并联配置利用了现有的透镜阵列和光纤V槽技术,便于将光纤和准直器集成在模块中,从而降低与对准,组装和封装相关的难度和成本。