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18 条记录 (耗时 0.035 秒)

    Optical multi/demultiplexer
    1.
    发明授权
    Optical multi/demultiplexer 失效

    公开(公告)号：US06606433B2

    公开(公告)日：2003-08-12

    申请号：US09892939

    申请日：2001-06-27

    申请人： Manabu Oguma ,  Akira Himeno ,  Kaname Jinguji ,  Tsutomu Kitoh ,  Yoshinori Hibino

    发明人： Manabu Oguma ,  Akira Himeno ,  Kaname Jinguji ,  Tsutomu Kitoh ,  Yoshinori Hibino

    IPC分类号： G02B634

    CPC分类号： G02B6/12021 ,  G02B6/29355 ,  G02B6/2938 ,  G02F1/0147 ,  H04J14/02

    摘要： An optical multi/demultiplexer is provided that has a wide passband and small crosstalk among its all channels. It includes first and second arrayed waveguide gratings and a 2×2 optical signal processor. The 2×2 optical signal processor includes first to fourth directional couplers, and first to third delay lines. The first to third delay lines have thin film heater phase shifters for correcting phase errors involved in fabrication. Utilizing the 2×2 optical signal processor having a transmission spectrum with a square profile having a wide passband and rejection band makes it possible for the optical multi/demultiplexer that combines the arrayed waveguide gratings with the waveguide type circulating filter (2×2 optical signal processor) to widen the extinction bandwidth of the adjacent channel.

    Optical filter
    2.
    发明授权
    Optical filter 失效
    滤光片

    公开(公告)号：US06724957B2

    公开(公告)日：2004-04-20

    申请号：US10213075

    申请日：2002-08-07

    申请人： Takashi Saida ,  Takayuki Mizuno ,  Akira Himeno ,  Katsunari Okamoto ,  Koichi Takiguchi ,  Manabu Oguma

    发明人： Takashi Saida ,  Takayuki Mizuno ,  Akira Himeno ,  Katsunari Okamoto ,  Koichi Takiguchi ,  Manabu Oguma

    IPC分类号： G02B626

    CPC分类号： G02B6/29355 ,  G02B6/105 ,  G02B6/2938 ,  G02B6/29386 ,  G02B2006/12135 ,  G02B2006/12159

    摘要： It is an object of the present invention to provide an optical filter which allows parameters to be easily adjusted, which allows birefringence and temperature dependence to be easily compensated for, and which is essentially free from dispersion. The optical filter includes an optical coupler that splits light into two beams, optical couplers connected to outputs of the optical coupler, a first group of two optical waveguide delay lines connected to the coupler, a second group of two optical waveguide delay lines connected to the coupler, an optical coupler that combines lights from the first group of the lines, an optical coupler that combines lights from the second group of the lines, and a multimode interference optical coupler that combines lights from the couplers together.

    摘要翻译： 本发明的目的是提供一种允许容易地调整参数的光学滤波器，其允许容易地补偿双折射和温度依赖性，并且基本上没有分散。 光学滤波器包括将光分成两个光束的光耦合器，连接到光耦合器的输出的光耦合器，连接到耦合器的第一组两个光波导延迟线，连接到该耦合器的两个光波导延迟线的第二组 耦合器，组合来自第一组线路的光的光耦合器，组合来自第二组线路的光的光耦合器和将耦合器的光组合在一起的多模干涉光耦合器。

    No polarization dependent waveguide type optical circuit
    3.
    发明授权
    No polarization dependent waveguide type optical circuit 有权
    无偏振波导型光电路

    公开(公告)号：US06546161B2

    公开(公告)日：2003-04-08

    申请号：US09761628

    申请日：2001-01-17

    申请人： Masayuki Okuno ,  Akira Himeno ,  Yoshinori Hibino ,  Yasuyuki Inoue

    发明人： Masayuki Okuno ,  Akira Himeno ,  Yoshinori Hibino ,  Yasuyuki Inoue

    IPC分类号： G02B612

    CPC分类号： G02B6/12011 ,  G02B6/12023 ,  G02B6/125 ,  G02B6/126 ,  G02B2006/12145 ,  G02B2006/12159 ,  G02B2006/12195

    摘要： A no polarization dependent waveguide type optical circuit can resolve polarization dependency completely and can reduce reflected return light. An intermediate portion of the two connecting waveguides are formed with S-shaped waveguides of the same shape consisted of respectively two curved waveguides or two curved waveguides and straight waveguides connecting the curved waveguides. One polarization mode converter is provided in a groove formed across the S-shaped waveguide, and a perpendicular line to an incident surface of light of the polarization mode converter and the S-shaped waveguide forms an angle greater than 0°.

    摘要翻译： 无偏振相关波导型光电路可以完全解决偏振依赖性，可以减少反射光。 两个连接波导的中间部分形成有相同形状的S形波导，分别由连接弯曲波导的两个弯曲波导或两个弯曲波导和直波导构成。 一个偏振模式转换器设置在跨越S形波导的沟槽中，并且与偏振模转换器和S形波导的光的入射表面的垂直线形成大于0°的角度。

    WDM filter
    4.
    发明授权
    WDM filter 有权
    WDM滤波器

    公开(公告)号：US06229938B1

    公开(公告)日：2001-05-08

    申请号：US09494554

    申请日：2000-01-31

    申请人： Yoshinori Hibino ,  Akira Himeno ,  Makoto Abe ,  Takuya Tanaka ,  Shin Kamei ,  Akimasa Kaneko

    发明人： Yoshinori Hibino ,  Akira Himeno ,  Makoto Abe ,  Takuya Tanaka ,  Shin Kamei ,  Akimasa Kaneko

    IPC分类号： G02B626

    CPC分类号： G02B6/12021 ,  G02B6/12016

    摘要： The present invention provides a wavelength division multiplexing filter that requires lower costs, a smaller size, and a smaller amount of fiber routing operations. According to the present invention, a first module constitutes a first filter. A second module constituting a second filter is produced by connecting together circuits identical in number to a plurality of output ports of the first module, the circuits each comprising a combination of directional couplers and Bragg gratings both formed of silica-based-glass waveguides, the circuits each having a wavelength selection characteristic so as to correspond to each of the output ports. The second module is connected to the first module via an 8-fiber ribbon to simplify the integration and connection of the circuits.

    摘要翻译： 本发明提供了一种波分复用滤波器，其需要较低的成本，较小的尺寸和较少量的光纤路由操作。 根据本发明，第一模块构成第一过滤器。 构成第二滤波器的第二模块通过将数量相同的电路连接在第一模块的多个输出端口来产生，每个电路包括由二氧化硅基玻璃波导形成的定向耦合器和布拉格光栅的组合， 每个具有波长选择特性的电路，以便对应于每个输出端口。 第二个模块通过8光纤带连接到第一个模块，以简化电路的集成和连接。

    Planar optical waveguide
    7.
    发明授权
    Planar optical waveguide 有权
    平面光波导

    公开(公告)号：US08615146B2

    公开(公告)日：2013-12-24

    申请号：US13002860

    申请日：2009-07-29

    申请人： Mitsuru Nagano ,  Akira Himeno ,  Masayuki Okuno ,  Masahiko Naito ,  Akihito Doi ,  Daisuke Ogawa ,  Akira Nagai

    发明人： Mitsuru Nagano ,  Akira Himeno ,  Masayuki Okuno ,  Masahiko Naito ,  Akihito Doi ,  Daisuke Ogawa ,  Akira Nagai

    IPC分类号： G02B6/12

    CPC分类号： G02B6/12007 ,  G02B2006/12104

    摘要： A planar optical waveguide including a clad layer, an optical waveguide having a core embedded in the clad layer; and a groove formed in the clad layer and having a reflection interface for totally reflecting a leaked light leaked from the optical waveguide to the clad layer. Since the reflection interface for totally reflecting the leaked light is formed in the clad layer, the leaked light is prevented from entering into the tap coupler, and the variation of the branching ratio can be reduced.

    摘要翻译： 一种平面光波导，包括包覆层，具有嵌入包层的芯的光波导; 以及形成在包覆层中并具有用于将从光波导泄漏的泄漏光全反射到包覆层的反射界面的凹槽。 由于在包覆层中形成用于全反射泄漏光的反射界面，所以防止了泄漏的光进入分接耦合器，并且可以降低分支比的变化。