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    Wavelength Selective Switch
    3.
    发明申请
    Wavelength Selective Switch 有权

    公开(公告)号：US20170299858A1

    公开(公告)日：2017-10-19

    申请号：US15636941

    申请日：2017-06-29

    申请人： Huawei Technologies Co., Ltd.

    发明人： Liangjia Zong ,  Han Zhao

    IPC分类号： G02B26/08 ,  G02B6/293 ,  G02B6/35

    CPC分类号： G02B6/293 ,  G02B6/2931 ,  G02B6/29395 ,  G02B6/3512 ,  G02B6/3534 ,  G02B6/3548 ,  G02B6/3556 ,  G02B6/356 ,  G02B6/3588 ,  G02B26/08

    摘要： A wavelength selective switch (WSS) includes a liquid crystal on silicon (LCOS) panel and a fiber array with multiple ports. The two outermost ports of the multiple ports are a first port and a second port. An included angle between an intersecting line of the LCOS panel and a first plane in which the incident light entering the LCOS panel and emergent light exiting the LCOS panel are located, and incident light entering the LCOS panel is (90−θ) degrees, where a wavelength of the incident light is same as a wavelength of the emergent light, θ is less than 15 degrees, the first port and the included angle of (90−θ) degrees are located on a same side of the incident light, and the second port and the included angle of (90−θ) degrees are separately located on two sides of the incident light.

    WAVELENGTH SELECTION SWITCH AND CONTROL METHOD FOR PHASE MODULATION ELEMENT
    7.
    发明申请
    WAVELENGTH SELECTION SWITCH AND CONTROL METHOD FOR PHASE MODULATION ELEMENT 审中-公开
    波长选择开关和相位调制元件的控制方法

    公开(公告)号：US20160124155A1

    公开(公告)日：2016-05-05

    申请号：US14896187

    申请日：2013-06-06

    申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

    发明人： Takafumi OHTSUKA

    IPC分类号： G02B6/35 ,  G02B6/293 ,  G02B6/26 ,  G02F1/31

    CPC分类号： G02B6/356 ,  G02B6/264 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/351 ,  G02B6/352 ,  G02B6/3534 ,  G02F1/31 ,  G02F2203/58 ,  H04Q11/0005 ,  H04Q2011/0026 ,  H04Q2011/0035 ,  H04Q2011/0039

    摘要： A wavelength selective switch 1A includes a first port 11 and second ports 12a to 12d; a wavelength dispersive element 15; and a phase modulation element 17. Wavelength components L21 to L23 deflected by the phase modulation element 17 are respectively incident to the desired second ports 12b to 12d. A first control voltage pattern is supplied to the phase modulation element 17 in such a way that when the optical path of a wavelength component is switched from one to another of the second ports, the amount of phase modulation of a pre-switching phase modulation pattern is reduced while the period of a diffraction grating is maintained, and thereafter, a second control voltage pattern is supplied to the phase modulation element 17 so as to present a post-switching phase modulation pattern.

    摘要翻译： 波长选择开关1A包括第一端口11和第二端口12a至12d; 波长色散元件15; 和相位调制元件17.由相位调制元件17偏转的波长分量L21〜L23分别入射到期望的第二端口12b〜12d。 第一控制电压图案以这样的方式提供给相位调制元件17，即当波长分量的光路从第二端口中的一个切换到另一个时，预切换相位调制图案的相位调制量 在维持衍射光栅的周期的同时减小，之后，向相位调制元件17提供第二控制电压图案，以呈现开关后相位调制图案。

    Optical switch
    8.
    发明授权
    Optical switch 有权
    光开关

    公开(公告)号：US09307301B2

    公开(公告)日：2016-04-05

    申请号：US14239771

    申请日：2012-09-14

    申请人： Kenya Suzuki ,  Kazunori Seno ,  Naoki Ooba ,  Toshio Watanabe ,  Tetsuo Takahashi

    发明人： Kenya Suzuki ,  Kazunori Seno ,  Naoki Ooba ,  Toshio Watanabe ,  Tetsuo Takahashi

    IPC分类号： H04Q11/00 ,  G02B6/35

    CPC分类号： H04Q11/0003 ,  G02B6/3518 ,  G02B6/3534

    摘要： The discloser provides a multi-input and multi-output optical switch capable of switching over all WDM wavelengths. An optical switch according to one embodiment includes: an optical demultiplexing element (3) that demultiplexes an optical signal from at least one input port into individual wavelengths; a first optical deflection element (5), which deflects an incident optical signal, that deflects the wavelength-separated optical signal incoming from the optical demultiplexing element to change a traveling direction for each wavelength to a switch axis direction perpendicular to a wavelength dispersion axis direction; a second optical deflection element (8) that deflects the optical signal incoming from the first optical deflection element to change the traveling direction to the switch axis direction for output to at least one of the output ports; and an optical multiplexing element (10) that multiplexes the optical signal with the different wavelengths incoming from the second optical deflection element.

    摘要翻译： 该解决方案提供了能够切换所有WDM波长的多输入和多输出光开关。 根据一个实施例的光开关包括：光解复用元件（3），其将来自至少一个输入端口的光信号解复用为各个波长; 第一光偏转元件（5），其使入射光信号偏转，偏转从光解复用元件输入的波长分离的光信号，以将每个波长的行进方向改变为垂直于波长色散轴方向的开关轴方向 ; 第二光学偏转元件（8），其偏转从第一光学偏转元件入射的光学信号，以将行进方向改变到开关轴线方向，以输出到至少一个输出端口; 以及光复用元件（10），其将光信号与从第二光偏转元件入射的不同波长进行复用。

    OPTICAL UNIT AND WAVELENGTH SELECTIVE SWITCH
    10.
    发明申请
    OPTICAL UNIT AND WAVELENGTH SELECTIVE SWITCH 有权
    光学单元和波长选择开关

    公开(公告)号：US20140016209A1

    公开(公告)日：2014-01-16

    申请号：US13939999

    申请日：2013-07-11

    申请人： Sumitomo Electric Industries, Ltd.

    发明人： Satoshi YOSHIKAWA ,  Manabu SHIOZAKI

    IPC分类号： G02B27/30

    CPC分类号： G02B27/30 ,  G02B6/2931 ,  G02B6/29313 ,  G02B6/3512 ,  G02B6/3534 ,  G02B6/356

    摘要： In a wavelength selective switch, a holding member is used to rotate one end of optical fibers and a collimator array around a rotation axis to thereby change an incident angle of collimated light with respect to incident surfaces of a beam expander optical system. When the incident angle of the collimated light on the beam expander optical system is changed, an amount of variation in an emission angle of light from the beam expander optical system is not proportional (inversely proportional) to the magnification of the beam expander optical system. Thus, this wavelength selective switch can easily fine-tune the incident position (beam position) of light with respect to each reflecting surface of a MEMS mirror by rotating the holding member.

    摘要翻译： 在波长选择开关中，保持构件用于围绕旋转轴旋转光纤的一端和准直器阵列，从而改变准直光相对于光束扩展器光学系统的入射表面的入射角。 当光束扩展器光学系统上的准直光的入射角改变时，来自光束扩展器光学系统的光的发射角的变化量与扩束器光学系统的倍率成比例（成反比）。 因此，通过旋转保持构件，该波长选择开关可以容易地微调相对于MEMS反射镜的每个反射表面的光的入射位置（光束位置）。