Chromatic dispersion compensator
    1.
    发明申请
    Chromatic dispersion compensator 失效
    色散补偿器

    公开(公告)号:US20060198024A1

    公开(公告)日:2006-09-07

    申请号:US11320426

    申请日:2005-12-29

    IPC分类号: G02B27/00

    摘要: A chromatic dispersion compensator of present invention includes a high-refractive-index VIPA plate, a three-dimensional mirror, and a control unit. The high-refractive-index VIPA plate is made of a material such as silicon having a refractive index higher than that of optical glass and is able to output incident lights toward different directions according to wavelength. The three-dimensional mirror reflects the light of each wavelength emitted from the high-refractive-index VIPA plate, at a predetermined position and returns the light to the VIPA plate. The control unit controls a temperature of the high-refractive-index VIPA plate at a constant level while controlling the position of the three-dimensional mirror corresponding to a chromatic dispersion compensation amount. Thereby, larger chromatic dispersion can be compensated while a decrease in transmission bandwidth is suppressed.

    摘要翻译: 本发明的色散补偿器包括高折射率VIPA板,三维反射镜和控制单元。 高折射率VIPA板由折射率高于光学玻璃的折射率的材料制成,能够根据波长向不同方向输出入射光。 三维反射镜在预定位置反射从高折射率VIPA板发射的每个波长的光,并将光返回到VIPA板。 控制单元控制高折射率VIPA板的温度恒定,同时控制与色散补偿量对应的三维镜的位置。 因此,可以在抑制传输带宽的减小的同时补偿更大的色散。

    Chromatic dispersion compensator
    2.
    发明授权
    Chromatic dispersion compensator 失效
    色散补偿器

    公开(公告)号:US07646982B2

    公开(公告)日:2010-01-12

    申请号:US11320426

    申请日:2005-12-29

    IPC分类号: H04B10/12 H04J14/02

    摘要: A chromatic dispersion compensator of present invention includes a high-refractive-index VIPA plate, a three-dimensional mirror, and a control unit. The high-refractive-index VIPA plate is made of a material such as silicon having a refractive index higher than that of optical glass and is able to output incident lights toward different directions according to wavelength. The three-dimensional mirror reflects the light of each wavelength emitted from the high-refractive-index VIPA plate, at a predetermined position and returns the light to the VIPA plate. The control unit controls a temperature of the high-refractive-index VIPA plate at a constant level while controlling the position of the three-dimensional mirror corresponding to a chromatic dispersion compensation amount. Thereby, larger chromatic dispersion can be compensated while a decrease in transmission bandwidth is suppressed.

    摘要翻译: 本发明的色散补偿器包括高折射率VIPA板,三维反射镜和控制单元。 高折射率VIPA板由折射率高于光学玻璃的折射率的材料制成,能够根据波长向不同方向输出入射光。 三维反射镜在预定位置反射从高折射率VIPA板发射的每个波长的光,并将光返回到VIPA板。 控制单元控制高折射率VIPA板的温度恒定,同时控制与色散补偿量对应的三维镜的位置。 因此,可以在抑制传输带宽的减小的同时补偿更大的色散。

    Chromatic dispersion generating apparatus
    3.
    发明授权
    Chromatic dispersion generating apparatus 有权
    色散发生装置

    公开(公告)号:US07319821B2

    公开(公告)日:2008-01-15

    申请号:US11094743

    申请日:2005-03-31

    IPC分类号: H04B10/12

    摘要: A chromatic dispersion generating apparatus of the present invention comprises a VIPA plate capable of emitting an incident light to different directions according to wavelengths, a three-dimensional mirror reflecting the light of respective wavelengths emitted from the VIPA plate at a previously set position to return them to the VIPA plate, and a control section that controls a position of the three-dimensional mirror and the temperature of the VIPA plate. The control section computes a target position of the three-dimensional mirror and the target temperature of the VIPA plate, which correspond to an arbitrary wavelength and a chromatic dispersion value, based on data relating to positions of the three-dimensional mirror corresponding to a plurality of chromatic dispersion values of a specific wavelength and a chromatic dispersion slope value, and data relating to the temperatures of the VIPA plate corresponding to a plurality of dispersion values for respective wavelengths on a predetermined wavelength grid and a wavelength temperature coefficient, which are stored in a storage circuit, to optimize the computed target position and the computed target temperature. As a result, it becomes possible to generate the chromatic dispersion with high accuracy at an arbitrary wavelength.

    摘要翻译: 本发明的色散产生装置包括:能够根据波长向不同方向发射入射光的VIPA板,反映在先前设定的位置从VIPA板发射的各波长的光的三维反射镜以返回它们 和VIPA板的控制部,以及控制三维反射镜的位置和VIPA板的温度的控制部。 控制部基于与多个对应的三维反射镜的位置有关的数据,计算三维反射镜的目标位置和VIPA板的目标温度,该目标温度对应于任意波长和色散值 特定波长和色散斜率值的色散值,以及与预定波长网格上的各波长的多个色散值对应的VIPA板的温度和波长温度系数相关的数据,其存储在 存储电路,以优化所计算的目标位置和所计算的目标温度。 结果,可以在任意波长下以高精度产生色散。

    Chromatic dispersion generating apparatus
    4.
    发明申请
    Chromatic dispersion generating apparatus 有权
    色散发生装置

    公开(公告)号:US20060140637A1

    公开(公告)日:2006-06-29

    申请号:US11094743

    申请日:2005-03-31

    IPC分类号: H04B10/12

    摘要: A chromatic dispersion generating apparatus of the present invention comprises a VIPA plate capable of emitting an incident light to different directions according to wavelengths, a three-dimensional mirror reflecting the light of respective wavelengths emitted from the VIPA plate at a previously set position to return them to the VIPA plate, and a control section that controls a position of the three-dimensional mirror and the temperature of the VIPA plate. The control section computes a target position of the three-dimensional mirror and the target temperature of the VIPA plate, which correspond to an arbitrary wavelength and a chromatic dispersion value, based on data relating to positions of the three-dimensional mirror corresponding to a plurality of chromatic dispersion values of a specific wavelength and a chromatic dispersion slope value, and data relating to the temperatures of the VIPA plate corresponding to a plurality of dispersion values for respective wavelengths on a predetermined wavelength grid and a wavelength temperature coefficient, which are stored in a storage circuit, to optimize the computed target position and the computed target temperature. As a result, it becomes possible to generate the chromatic dispersion with high accuracy at an arbitrary wavelength.

    摘要翻译: 本发明的色散产生装置包括:能够根据波长向不同方向发射入射光的VIPA板,反映在先前设定的位置从VIPA板发射的各波长的光的三维反射镜以返回它们 和VIPA板的控制部,以及控制三维反射镜的位置和VIPA板的温度的控制部。 控制部基于与多个对应的三维反射镜的位置有关的数据,计算三维反射镜的目标位置和VIPA板的目标温度,该目标温度对应于任意波长和色散值 特定波长和色散斜率值的色散值,以及与预定波长网格上的各个波长的多个色散值对应的VIPA板的温度和波长温度系数相关的数据,其存储在 存储电路,以优化所计算的目标位置和所计算的目标温度。 结果,可以在任意波长下以高精度产生色散。

    Device using a virtually-imaged phased array (VIPA) with an improved transmission wave characteristic of output light
    5.
    发明授权
    Device using a virtually-imaged phased array (VIPA) with an improved transmission wave characteristic of output light 失效
    使用具有改进的输出光的透射波特性的虚拟成像的相控阵列(VIPA)的装置

    公开(公告)号:US07200297B2

    公开(公告)日:2007-04-03

    申请号:US10278868

    申请日:2002-10-24

    IPC分类号: G02B6/26 G02B27/00

    CPC分类号: G02B6/29358 G02B6/2937

    摘要: A dispersion compensator comprising a VIPA is configured so as to reflect light with each wavelength at an angle varying depending on wavelength when the light is reflected off a mirror. When being coupled at the end of an input fiber, the light with each wavelength is coupled at a specific angle. If the light is coupled with the fiber at a specific angle, coupling efficiency degrades. Therefore, in this case, coupling loss increases. Light having a wavelength with high transmittance in the VIPA is coupled with the fiber at a large angle, while light with a low transmittance is efficiently coupled with the fiber at a small angle or no angle. In this way, the round-top wavelength characteristic of the VIPA can be leveled.

    摘要翻译: 包括VIPA的色散补偿器被配置为当光从反射镜反射时以每个波长的光以与波长有关的角度变化。 当在输入光纤的端部耦合时,每个波长的光以特定角度耦合。 如果光以特定角度与光纤耦合,则耦合效率降低。 因此,在这种情况下,耦合损耗增加。 在VIPA中具有高透射率的光以大角度与光纤耦合,而具有低透射率的光以小角度或无角度与光纤有效耦合。 以这种方式,VIPA的圆顶波长特性可以被平整。

    Variable optical attenuator utilizing Faraday effect
    6.
    发明授权
    Variable optical attenuator utilizing Faraday effect 失效
    可变光衰减器利用法拉第效应

    公开(公告)号:US06384957B1

    公开(公告)日:2002-05-07

    申请号:US09697180

    申请日:2000-10-27

    IPC分类号: G02F109

    摘要: The present invention aims at providing a variable optical attenuator to achieve the reduction of the wavelength-dependency of the entire device, by optimizing the magneto-optical system of the variable optical attenuator by deliberating the wavelength-dependency of Faraday rotation angles. To this end, the variable optical attenuator according to the present invention comprises: a Faraday rotator for providing a variable Faraday rotation angle; and a polarizer and an analyzer arranged in front of and behind the Faraday rotator, respectively, wherein the angle formed between the optical axis of the analyzer and the optical axis of the polarizer is set such that the Faraday rotation angle at which the wavelength-dependency of the optical attenuation amount of the variable optical attenuator becomes the maximum, is brought to be substantially 0°, to thereby reduce the wavelength-dependency of the optical attenuation amount at the aforementioned Faraday rotation angle.

    摘要翻译: 本发明旨在通过考虑法拉第旋转角的波长依赖性来优化可变光衰减器的磁光系统来提供可变光衰减器,以实现整个装置的波长依赖性的降低。 为此,根据本发明的可变光衰减器包括:法拉第旋转器,用于提供可变的法拉第旋转角; 以及分别布置在法拉第旋转器的前面和后面的偏振器和分析仪,其中在分析仪的光轴和偏振器的光轴之间形成的角度被设定为使得波长依赖性的法拉第旋转角度 可变光衰减器的光衰减量变为最大时,基本上为0°,从而降低了在上述法拉第旋转角度下的光衰减量的波长依赖性。

    Optical device
    7.
    发明授权
    Optical device 失效
    光学装置

    公开(公告)号:US06894851B2

    公开(公告)日:2005-05-17

    申请号:US10669335

    申请日:2003-09-25

    IPC分类号: G02B7/02 G02B6/34

    CPC分类号: G02B6/29358 G02B6/29398

    摘要: A cabinet provided with light input/output holes accommodates a VIPA optical element, a lens, a fixing material fixing the VIPA optical element. A temperature-controlled heater controls the temperature of and inside the cabinet. Both the light input and output holes of the cabinet are blocked by the fixing material and the lens, respectively, so that temperature inside the cabinet is not influenced by the outside air.

    摘要翻译: 具有光输入/输出孔的机柜容纳VIPA光学元件,透镜,固定VIPA光学元件的固定材料。 温控加热器控制机柜内部和室内的温度。 机柜的光输入和输出孔分别由固定材料和透镜阻挡,使机柜内的温度不受外界空气的影响。