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7 条记录 (耗时 0.009 秒)

    Photo-sensitive fiber
    1.
    发明授权
    Photo-sensitive fiber 失效
    光敏纤维

    公开(公告)号：US06221555B1

    公开(公告)日：2001-04-24

    申请号：US09166853

    申请日：1998-10-06

    申请人： Yuichi Murakami ,  Yuichi Morishita ,  Kenichi Muta ,  Jen-Hung Chu ,  Hen-Tai Shang

    发明人： Yuichi Murakami ,  Yuichi Morishita ,  Kenichi Muta ,  Jen-Hung Chu ,  Hen-Tai Shang

    IPC分类号： G02B602

    CPC分类号： G02B6/03622 ,  G02B6/021 ,  G02B6/02114 ,  G02B6/02138 ,  G02B6/03694

    摘要： Abnormal losses outside a reflection band attributable to a mismatch of core field diameters are suppressed. A photo-sensitive fiber comprising a core 1 and a cladding having a cladding inner layer and a cladding outer layer formed in this order around the core, in which at least the core is photo-sensitive to form a grating. The core and cladding inner layer include a photo-sensitive dopant for increasing the refractive index. The core additionally includes a first non-photo-sensitive dopant for increasing the refractive index and the cladding inner layer additionally includes a second non-photo-sensitive dopant for creasing the refractive index.

    摘要翻译： 抑制归因于核心场直径不匹配的反射带外的异常损失。 一种光敏纤维，其包括芯1和包层，其具有围绕芯的该顺序形成的包层内层和包层外层，其中至少芯是光敏的以形成光栅。 芯和包层内层包括用于增加折射率的光敏掺杂剂。 芯还包括用于增加折射率的第一非光敏掺杂剂，并且包层内层另外包括用于折射折射率的第二非光敏掺杂剂。

    Electrostatic comb drive actuator, and optical controller using the electrostatic comb drive actuator
    4.
    发明申请
    Electrostatic comb drive actuator, and optical controller using the electrostatic comb drive actuator 审中-公开
    静电梳驱动执行器，以及使用静电梳驱动执行器的光控制器

    公开(公告)号：US20050052723A1

    公开(公告)日：2005-03-10

    申请号：US10895290

    申请日：2004-07-21

    申请人： Shin-Ichiro Watanabe ,  Koji Horio ,  Kenichi Muta ,  Masayoshi Esashi

    发明人： Shin-Ichiro Watanabe ,  Koji Horio ,  Kenichi Muta ,  Masayoshi Esashi

    IPC分类号： G02B26/02 ,  B81B3/00 ,  G02B26/00

    CPC分类号： B81B3/0037 ,  B81B2201/033 ,  B81B2201/045 ,  B81B2203/0136 ,  B81B2203/051

    摘要： An electrostatic comb drive actuator, characterized in that plural outer suspended elastic beams 2a and 2b are disposed in parallel to and outside plural inner suspended elastic beams 1a and 1b disposed in parallel to each other; the ends of the inner suspended elastic beams and the outer suspended elastic beams on both sides are connected with end connecting beams 3a and 3b; the outer suspended elastic beams are supported at their centers on a board 5; the inner suspended elastic beams are connected with each other at their centers by means of a working section 6; a movable comb electrode 7 is supported on the working section; and a fixed comb electrode 8 is supported on the board.

    摘要翻译： 一种静电梳驱动致动器，其特征在于，多个外悬置弹性梁2a和2b平行于彼此平行布置的多个内悬置弹性梁1a和1b平行设置; 内侧悬臂弹簧梁的端部和两侧的外侧悬臂弹性梁与末端连接梁3a，3b连接; 外侧悬臂弹性梁在其中心支撑在板5上; 内部悬吊弹性梁通过工作部分6在其中心处相互连接; 可动梳状电极7被支撑在工作部分上; 并且固定梳状电极8被支撑在板上。

    Waveguide optical amplifier
    6.
    发明申请
    Waveguide optical amplifier 审中-公开
    波导光放大器

    公开(公告)号：US20050088723A1

    公开(公告)日：2005-04-28

    申请号：US10691559

    申请日：2003-10-24

    申请人： Hiroshi Kawazoe ,  Kenichi Muta

    发明人： Hiroshi Kawazoe ,  Kenichi Muta

    IPC分类号： H01S3/00 ,  H01S3/063 ,  H01S3/0915

    CPC分类号： H01S3/063 ,  H01S3/0915

    摘要： The conventional EDFA has such problems that it is very costly since it requires an external high-energy laser diode and an optical coupling means for optically coupling the pumping light given from the laser diode, and that it must have a long length for obtaining a desired amplification degree. A constitution having an optical waveguide and an pumping light source integrated for solving the problems is also proposed, but it also has a problem in view of downsizing. This invention proposes a waveguide optical amplifier 1, in which a surface light emission source 3 for pumping driven electrically is provided adjacently to and integrally with an optical waveguide 2 doped with a light-emitting species, in the longitudinal direction of the optical waveguide.

    摘要翻译： 传统的EDFA具有这样的问题，因为它需要外部的高能激光二极管和用于光耦合从激光二极管给出的泵浦光的光耦合装置，所以它是非常昂贵的，并且它必须具有长的长度以获得期望的 放大度。 还提出了一种具有用于解决问题的光波导和泵浦光源的结构，但是从缩小尺寸的观点出发也存在问题。 本发明提出了一种波导光放大器1，其中在光波导的纵向方向上与用于发射光的光波导2相邻且一体地设置用于泵浦驱动的表面发光源3。

    Optical fiber attenuator with attenuating dopant limited to a central or peripheral area of the fiber core
    7.
    发明授权
    Optical fiber attenuator with attenuating dopant limited to a central or peripheral area of the fiber core 有权
    具有衰减掺杂剂的光纤衰减器限于光纤芯的中心或周边区域

    公开(公告)号：US06748151B1

    公开(公告)日：2004-06-08

    申请号：US09868766

    申请日：2001-06-21

    申请人： Masaru Watanabe ,  Eiji Matsuyama ,  Akiyoshi Naruse ,  Yuichi Murakami ,  Kenichi Muta ,  Toyomitsu Yamamoto

    发明人： Masaru Watanabe ,  Eiji Matsuyama ,  Akiyoshi Naruse ,  Yuichi Murakami ,  Kenichi Muta ,  Toyomitsu Yamamoto

    IPC分类号： G02B618

    CPC分类号： G02B6/03694 ,  G02B6/0281 ,  G02B6/03633 ,  G02B6/266

    摘要： An optical attenuator which provides almost the same degree of attenuation even when the difference in wavelength of two different kinds of input optical signals is small. Another optical attenuator is provided with a dopant concentration in a technically realizable range which increases the difference in optical attenuation of two different kinds of input optical signals. Almost the same degree of attenuation may be obtained even when the difference between wavelengths is small by canceling the wavelength dependency of attenuation of the dopant by raising the refractive index of an axially central portion of the core as compared to that of the peripheral portion of the core and by taking into account the type and area of the dopant and the ratio of the difference &Dgr;2 between the refractive indexes of the cladding and the axial portion of the core and the difference &Dgr;1 between the refractive index of the cladding and the refractive index of the peripheral portion, i.e., &Dgr;1/&Dgr;2. On the other hand, the difference of attenuation is increased while suppressing the concentration of dopant to the realizable range.

    摘要翻译： 即使当两种不同种类的输入光信号的波长差小时，也提供几乎相同衰减程度的光衰减器。 另一个光衰减器在技术上可实现的范围内提供掺杂剂浓度，这增加了两种不同种类的输入光信号的光衰减差异。 即使当通过提高与芯的周边部分的芯的轴向中心部分的折射率相比较来补偿掺杂剂的衰减的波长依赖性时，即使当波长之间的差异较小时，也可以获得几乎相同的衰减程度 并且通过考虑掺杂剂的类型和面积以及包层的折射率与芯的轴向部分之间的差值Delta2与包层的折射率与折射率之间的差值Δ1的比值 外围部分，即Delta1 / Delta2。 另一方面，在将掺杂剂的浓度抑制到可实现的范围的同时，衰减的差异增加。