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    • 4. 发明授权
    • Optical switch
    • 光开关
    • US07003191B2
    • 2006-02-21
    • US10790020
    • 2004-03-02
    • Takahiro SunagaMakoto KatayamaTomohiko Kanie
    • Takahiro SunagaMakoto KatayamaTomohiko Kanie
    • G02B6/26G02B6/42
    • G02B6/3548G02B6/3514G02B6/357G02B6/3596
    • An optical switch is provided in which the difference of the optical loss due to the difference of optical path can be reduced. The optical switch comprises the first switching parts 2A–2D and the second switching parts 3A–3D. The first switching parts 2A–2D each comprise: a planar waveguide device 4 in which four coupling optical waveguides 5a–5d and an input optical waveguide 6 are provided; and reflection mirrors 8a–8d for reflecting a light signal incident from the input optical waveguide 6 to the respective coupling optical waveguides 5a–5d, respectively. The second switching parts 3A–3D each comprise: a planar waveguide device 9 in which coupling optical waveguides 10a–10d and an output optical waveguide 11 are provided; and reflection mirrors 13a–13d for reflecting a light signal incident from the respective coupling optical waveguides 10a–10d to the output optical waveguide 11. The optical switch is provided with 16 optical fibers 20 for connecting the coupling optical waveguides 5a–5d of the first switching parts 2A–2D to the different second coupling optical waveguides 10a–10d of the second switching parts 3A–3D, respectively.
    • 提供一种光开关,其中可以减少由于光路差异引起的光损耗的差异。 光开关包括第一开关部分2A-2D和第二开关部分3A-3A。第一开关部分2A-2D分别包括:平面波导器件4,其中四个耦合光波导5a至 5d和输入光波导6; 以及用于将从输入光波导6入射的光信号分别反射到各个耦合光波导5a-5d的反射镜8a-8d。 第二开关部件3A-3D分别包括:设置有耦合光波导10 a至10 d的平面波导器件9和输出光波导11; 以及用于将从各个耦合光波导10 a -10 d入射的光信号反射到输出光波导11的反射镜13a-13d。 光开关设置有16根光纤20,用于将第一开关部分2A-2D的耦合光波导5a-5d连接到第二开关部分3A的不同的第二耦合光波导10a-10d -3 D。
    • 6. 发明授权
    • Optical device
    • 光学装置
    • US07315672B2
    • 2008-01-01
    • US10993172
    • 2004-11-22
    • Tomohiko KanieMakoto Katayama
    • Tomohiko KanieMakoto Katayama
    • G02B6/02G02B6/12
    • G02B6/3588G02B6/12007G02B6/266G02B6/3514G02B6/3532G02B6/3548G02B6/3566G02B6/3584G02B6/3594G02B6/3596
    • An optical variable attenuator 1 has a planar waveguide 2 and an actuator structure 3. The planar waveguide 2 is provided with an input optical waveguide core 4A for input of an optical signal, an output optical waveguide core 4B for outputting an optical signal from the optical waveguide core 4A, and an a movable mirror optical waveguide core 4C for guiding light that does not enter the optical waveguide core 4B, out of the optical signal from the optical waveguide core 4A. The actuator structure 3 has a movable mirror 7 for reflecting the optical signal emerging from the input optical waveguide core 4A, toward the output optical waveguide core 4B. A light receiving device 10 for receiving light passing the optical waveguide core 4C is provided at one end face of the planar waveguide 2.
    • 光学可变衰减器1具有平面波导2和致动器结构3.平面波导2设置有用于输入光信号的输入光波导芯411,用于输出光信号的输出光波导芯4B 光波导芯411和用于引导不进入光波导芯体4B的光的可移动镜光波导芯体4C,从光波导芯体4A的光信号中移除。致动器结构3具有 用于将从输入光波导芯411出射的光信号反射到输出光波导芯体B的可移动反射镜7.用于接收通过光波导芯体4C的光的光接收装置10设置在 平面波导2。
    • 8. 发明授权
    • Variable dispersion compensator and optical transmission system
    • 可变色散补偿器和光传输系统
    • US06659614B2
    • 2003-12-09
    • US10114322
    • 2002-04-03
    • Makoto KatayamaTomohiko KanieMasayuki NishimuraShunichi Tsuchiya
    • Makoto KatayamaTomohiko KanieMasayuki NishimuraShunichi Tsuchiya
    • G02B508
    • H04B10/25133H04B2210/258
    • An optical signal, which is to become the subject of dispersion compensation, is split by optical combining/splitting unit 2, and each frequency component of the optical signal that is split is reflected by each reflective surface of reflective mirror 40 of reflective means 4 to apply a predetermined phase shift to the respective frequency components. Each reflected frequency component is then combined using optical combining/splitting unit 2, to give dispersion compensated optical signal. Furthermore, in regards to reflective means 4, which is used to apply phase shift to each frequency component of an optical signal, reflective mirror 40 is made a variable movable mirror by reflection position at each reflective surface, which reflects the frequency components, deforming the entire reflective surface. This allows dispersion that is created in an optical signal to be compensated with favorable controllability and high accuracy. As a result, it becomes possible to provide a variable dispersion compensator that presents high precision and controllability of dispersion compensation, and has a miniaturized optical circuit, and an optical transmission system comprising such variable dispersion compensator.
    • 要成为色散补偿对象的光信号被光学合成/分离单元2分离,被分离的光信号的每个频率分量被反射装置4的反射镜40的每个反射表面反射到 对各个频率分量施加预定的相移。 然后使用光学合成/分离单元2将每个反射频率分量组合,以产生色散补偿光信号。 此外,关于用于向光信号的每个频率分量施加相移的反射装置4,通过反射位置在每个反射表面处将反射镜40制成可变可移动反射镜,其反映频率分量,使 整个反光面。 这允许以良好的可控性和高精度补偿在光信号中产生的色散。 结果,可以提供具有高精度和色散补偿的可控性的可变色散补偿器,并且具有小型化的光电路和包括这种可变色散补偿器的光传输系统。