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    Variable optical attenuator
    1.
    发明申请
    Variable optical attenuator 失效
    可变光衰减器

    公开(公告)号：US20050191024A1

    公开(公告)日：2005-09-01

    申请号：US10666835

    申请日：2003-09-19

    Applicant: Masahito Morimoto ,  Kouki Sato

    Inventor： Masahito Morimoto ,  Kouki Sato

    IPC: G02B6/26 ,  G02B6/32 ,  G02B6/35

    CPC classification number: G02B6/3524 ,  G02B6/266 ,  G02B6/32 ,  G02B6/3526 ,  G02B6/3552 ,  G02B6/357 ,  G02B6/3592 ,  G02B6/3594

    Abstract: First and second optical fibers are opposed to each other, between which first and second lenses constituting a lens system having an optical axis coincident with those of the optical fibers are arranged with a gap therebetween in the direction of the optical axis. The actuators, ect are used to move the first and second lenses with electrostatic forces, in opposite directions along the optical axes of the optical fibers by the same amount at the same time. Thereby, the spot size of the light incident on the optical fiber on the reception side is changed while maintaining the light propagating between the first optical fiber and the second optical fiber point-symmetric in mode field shape. This changes the coupling efficiency between the first optical fiber and the second optical fiber, allowing an adjustment in light power.

    Abstract translation: 第一和第二光纤彼此相对，构成具有与光纤一致的光轴的透镜系统的第一透镜系统和第二透镜之间沿光轴方向间隔开间隔开。 这些致动器用于使静电力沿着光纤的光轴在相反方向上移动相同量的第一和第二透镜。 由此，在保持在第一光纤与第二光纤之间传播的光在点阵对称的场域形状的同时，入射到接收侧的光纤的光的光斑大小发生变化。 这改变了第一光纤和第二光纤之间的耦合效率，允许调节光功率。

    Functional optical module
    3.
    发明授权
    Functional optical module 失效
    功能光模块

    公开(公告)号：US07338217B2

    公开(公告)日：2008-03-04

    申请号：US11352176

    申请日：2006-02-10

    Applicant: Masahito Morimoto ,  Kouki Sato ,  Masato Shiino ,  Hajime Kazami

    Inventor： Masahito Morimoto ,  Kouki Sato ,  Masato Shiino ,  Hajime Kazami

    IPC: G02B6/36

    CPC classification number: G02B6/352 ,  G02B6/264 ,  G02B6/266 ,  G02B6/32 ,  G02B6/353 ,  G02B6/357 ,  G02B6/3574 ,  G02B6/3594 ,  G02B6/3849 ,  G02B6/3885 ,  G02B6/3893 ,  G02B6/4201 ,  G02B6/4249 ,  G02B6/4292

    Abstract: There are provided a power supply device for an optical functional component that supplies power to the optical functional component with reliability for a long term and enables easy exchange of the optical functional component, and an optical functional module having such a power supply device, where the power supply device is provided with a reception electrode 104, a power supply electrode 107-1 that supplies power to the reception electrode 104 while holding tight the reception electrode 104 on its side faces and thereby holding an optical functional component 105-1 detachably, and a protecting member 108 that is made of an insulating material and surrounds the power supply electrode 107-1 to prevent current leaks, and the power supply electrode 107-1 is comprised of two bent metallic members (107-1a and 107-1B) which are in intimate contact with the reception electrode 104 by elasticity.

    Abstract translation: 提供了一种用于光功能部件的电源装置，该光功能部件能够长期可靠地向光功能部件供电，并且能够容易地更换光功能部件，以及具有这种电源装置的光功能模块，其中， 电源装置设置有接收电极104，供电电极107-1，其在接收电极104的侧面紧固接收电极104的同时向接收电极104供电，从而可拆卸地保持光学功能部件105-1;以及 保护构件108，其由绝缘材料制成并且围绕电源电极107-1以防止电流泄漏，并且电源电极107-1由两个弯曲的金属构件（107-1a和107-1B ），其通过弹性与接收电极104紧密接触。

    Optical waveguide, optical waveguide module and method for forming optical waveguide
    4.
    发明申请
    Optical waveguide, optical waveguide module and method for forming optical waveguide 审中-公开
    光波导，光波导模块及光波导形成方法

    公开(公告)号：US20070183730A1

    公开(公告)日：2007-08-09

    申请号：US11547610

    申请日：2005-03-30

    Applicant: Masahito Morimoto ,  Masao Shinoda

    Inventor： Masahito Morimoto ,  Masao Shinoda

    IPC: G02B6/10

    CPC classification number: G02B6/2552

    Abstract: An optical waveguide comprising a core and a clad characterized in that a desired part is heated and transited to machining strain release state, the part transited to the machining strain release state is curved with a specified bending radius and transited to machining strain state. That part of the optical waveguide is heated to a temperature within a range between the bending point and softening point and transited to machining strain state. The optical waveguide is an optical fiber having the outer diameter not shorter than 50 μm. The optical waveguide has the outer diameter not shorter than ten times of the mode field diameter of the optical waveguide. The optical waveguide has a bending radius of 5.0 mm or less and difference equivalent of refractive index &Dgr;1 between the core and clad falls within a range of 0.8-3.5%.

    Abstract translation: 一种包括芯和包层的光波导，其特征在于，期望的部分被加热并转移到加工应变释放状态，转移到加工应变释放状态的部分以特定的弯曲半径弯曲并转换到加工应变状态。 将光波导的该部分加热到弯曲点和软化点之间的范围内的温度，并转移到加工应变状态。 光波导是外径不小于50μm的光纤。 光波导的外径不小于光波导的模场直径的十倍。 光波导具有5.0mm以下的弯曲半径，芯和包层之间的折射率差值等于1，在0.8〜3.5％的范围内。

    Variable optical attenuator
    5.
    发明授权
    Variable optical attenuator 失效

    公开(公告)号：US07013075B2

    公开(公告)日：2006-03-14

    申请号：US10666835

    申请日：2003-09-19

    Applicant: Masahito Morimoto ,  Kouki Sato

    Inventor： Masahito Morimoto ,  Kouki Sato

    IPC: G02B6/00 ,  G02B6/32

    CPC classification number: G02B6/3524 ,  G02B6/266 ,  G02B6/32 ,  G02B6/3526 ,  G02B6/3552 ,  G02B6/357 ,  G02B6/3592 ,  G02B6/3594

    Abstract: First and second optical fibers are opposed to each other, between which first and second lenses constituting a lens system having an optical axis coincident with those of the optical fibers are arranged with a gap therebetween in the direction of the optical axis. The actuators, ect are used to move the first and second lenses with electrostatic forces, in opposite directions along the optical axes of the optical fibers by the same amount at the same time. Thereby, the spot size of the light incident on the optical fiber on the reception side is changed while maintaining the light propagating between the first optical fiber and the second optical fiber point-symmetric in mode field shape. This changes the coupling efficiency between the first optical fiber and the second optical fiber, allowing an adjustment in light power.

    Variable optical attenuator
    6.
    发明授权
    Variable optical attenuator 失效
    可变光衰减器

    公开(公告)号：US06876810B2

    公开(公告)日：2005-04-05

    申请号：US10011143

    申请日：2001-11-09

    Applicant: Masahito Morimoto ,  Kouki Sato

    Inventor： Masahito Morimoto ,  Kouki Sato

    IPC: G02B6/00 ,  G02B6/26 ,  G02B6/35 ,  G02B26/02

    CPC classification number: G02B6/353 ,  G02B6/266 ,  G02B6/3552 ,  G02B6/357 ,  G02B6/3594 ,  G02B6/3596

    Abstract: An optical attenuator has first and second lenses provided individually on the respective end faces of first and second optical fibers that are opposed to each other across a space, and a shutter plate interposed between the lenses. The distance between the shutter plate and the second lens and a mode-field radius of propagating light on the second-lens-side surface of the shutter plate are set so that the respective signs of the real and imaginary parts of an evaluation function, representing a diffraction pattern of the propagating light that propagates from the first optical fiber to the second optical fiber, are inverted 60 times or more when a variable of the evaluation function is changed within an evaluation range.

    Abstract translation: 光衰减器具有单独设置在第一和第二光纤的相对端面上的第一和第二透镜，该第一和第二透镜在空间上彼此相对，以及插入在透镜之间的快门板。 快门板和第二透镜之间的距离以及快门板的第二透镜侧表面上的传播光的模场半径被设置为使得评估函数的实部和虚部的各个符号表示 当在评估范围内改变评估函数的变量时，从第一光纤传播到第二光纤的传播光的衍射图案被反转60次以上。

    Optical power detector, and multi-level digital transmission system incorporating the same
    7.
    发明授权
    Optical power detector, and multi-level digital transmission system incorporating the same 失效
    光功率检测器和包含其的多级数字传输系统

    公开(公告)号：US5748351A

    公开(公告)日：1998-05-05

    申请号：US606859

    申请日：1996-02-26

    Applicant: Masahito Morimoto

    Inventor： Masahito Morimoto

    IPC: G02F2/00 ,  G01J1/02 ,  H04B10/07 ,  H04B10/2507 ,  H04B10/508 ,  H04B10/524 ,  H04B10/58 ,  H04B10/158

    CPC classification number: H04B10/671

    Abstract: An optical power detector is provided which accurately detects the optical power of transmitted light and suffers almost no influence due to noise, and a multi-level digital transmission system which includes such an optical power detector. A beam of received light is incident into an entry end of a light fiber. A plurality of saturable absorbers are disposed in series along this light fiber, each having its own pair, differing in steps, of a first threshold value and a second threshold value which is greater than the first threshold value, and being substantially opaque to light of optical intensity below the first threshold value and substantially transparent to light of optical intensity above the second threshold value. A probe light source directs a beam of probe light to be incident upon each of the saturable absorbers in a direction crosswise to the light transmission path for the received light beam, when the received light beam is being transmitted along the light fiber to be incident upon the saturable absorbers in order. For each of the plurality of saturable absorbers, an avalanche photodiode (APD) is provided, which receives the probe light beam via its corresponding saturable absorber due to the received light beam passing through this saturable absorber, and which does not receive the probe light beam via this saturable absorber due to the received light beam being absorbed by this saturable absorber. And an optical power read out means detects whether or not probe light is received by each of the APDs which correspond to the saturable absorbers, thereby determines for each one of the saturable absorbers whether or not the received light beam has passed through it, and thus reads out the optical power of the received light beam.

    Abstract translation: 提供了一种光功率检测器，其精确地检测透射光的光功率并且几乎不受噪声影响;以及包括这种光功率检测器的多级数字传输系统。 接收光束入射到光纤入口端。 多个可饱和吸收体沿着该光纤串联设置，每个具有彼此不同步长的第一阈值和大于第一阈值的第二阈值，并且对于 光强度低于第一阈值，并且对于高于第二阈值的光强度的光基本透明。 当所接收的光束沿着光纤传播以被入射时，探针光源将一束探测光引导入射到每个可饱和吸收体上的方向与所接收的光束的光传输路径交叉的方向上 可饱和吸收器按顺序。 对于多个可饱和吸收体中的每一个，提供了雪崩光电二极管（APD），其由于所接收的光束通过该可饱和吸收体而经由其对应的可饱和吸收体接收探测光束，并且不接收探测光束 通过该可饱和吸收体，由于受到的光束被该可饱和吸收体吸收。 并且光功率读出装置检测与可饱和吸收体对应的每个APD是否接收到探测光，从而确定可饱和吸收体中的每一个是否所接收的光束是否通过它，因此 读出接收光束的光功率。

    BROADBAND WAVELENGTH MULTIPLEXING AND DEMULTIPLEXING FILTER AND OPTICAL SPLITTER WITH OPTICAL SIGNAL MULTIPLEXING AND DEMULTIPLEXING FUNCTION
    8.
    发明申请
    BROADBAND WAVELENGTH MULTIPLEXING AND DEMULTIPLEXING FILTER AND OPTICAL SPLITTER WITH OPTICAL SIGNAL MULTIPLEXING AND DEMULTIPLEXING FUNCTION 失效
    宽带波长多路复用滤波器和光分路器，具有光信号多路复用和解复用功能

    公开(公告)号：US20110097035A1

    公开(公告)日：2011-04-28

    申请号：US12983637

    申请日：2011-01-03

    Applicant: Kazutaka NARA ,  Haruki Urabe ,  Tsunetoshi Saitoh ,  Masahito Morimoto

    Inventor： Kazutaka NARA ,  Haruki Urabe ,  Tsunetoshi Saitoh ,  Masahito Morimoto

    IPC: G02B6/35

    CPC classification number: G02B6/2938 ,  G02B6/12007 ,  G02B6/29355 ,  G02B2006/12159

    Abstract: Two Mach-Zehnder optical interferometer circuits 13a and 13b are accurately point-symmetrically connected to each other to form a first point-symmetrically connected optical interferometer circuit 5 constituting a light input side circuit 1. Optical signals having a plurality of wavelengths are input to a light input terminal 17. A second point-symmetrically connected optical interferometer circuit 7 having the same functional structure as the first point-symmetrically connected optical interferometer circuit 5 is connected to a through port 18, which is an output terminal of the light input side circuit 1, as a first light output side circuit 2. A cross port 19, which is the other output terminal of the light input side circuit 1, is connected to a second light output side circuit 3 having at least one of Mach-Zehnder optical interferometer circuits 13c and 13d whose transmittance characteristics are different from those of the Mach-Zehnder optical interferometer circuits 13a and 13b.

    Abstract translation: 两个马赫 - 策德尔光学干涉仪电路13a和13b彼此精确地点对称连接，以形成构成光输入侧电路1的第一点对称连接的光干涉仪电路5.具有多个波长的光信号被输入到 具有与第一点对称连接的光干涉仪电路5相同的功能结构的第二点对称连接的光干涉仪电路7连接到作为光输入侧电路的输出端的通孔18 作为第一光输出侧电路2.作为光输入侧电路1的另一输出端的交叉口19连接到第二光输出侧电路3，该电路具有至少一个马赫 - 策德光干涉仪 电路13c和13d的透射率特性与马赫 - 策德尔光学干涉仪电路13a和13b的不同。

    Functional optical module
    9.
    发明申请
    Functional optical module 失效
    功能光模块

    公开(公告)号：US20060140544A1

    公开(公告)日：2006-06-29

    申请号：US11352176

    申请日：2006-02-10

    Applicant: Masahito Morimoto ,  Kouki Sato ,  Masato Shiino ,  Hajime Kazami

    Inventor： Masahito Morimoto ,  Kouki Sato ,  Masato Shiino ,  Hajime Kazami

    IPC: G02B6/38 ,  G02B6/36

    CPC classification number: G02B6/352 ,  G02B6/264 ,  G02B6/266 ,  G02B6/32 ,  G02B6/353 ,  G02B6/357 ,  G02B6/3574 ,  G02B6/3594 ,  G02B6/3849 ,  G02B6/3885 ,  G02B6/3893 ,  G02B6/4201 ,  G02B6/4249 ,  G02B6/4292

    Abstract: There are provided a power supply device for an optical functional component that supplies power to the optical functional component with reliability for a long term and enables easy exchange of the optical functional component, and an optical functional module having such a power supply device, where the power supply device is provided with a reception electrode 104, a power supply electrode 107-1 that supplies power to the reception electrode 104 while holding tight the reception electrode 104 on its side faces and thereby holding an optical functional component 105-1 detachably, and a protecting member 108 that is made of an insulating material and surrounds the power supply electrode 107-1 to prevent current leaks, and the power supply electrode 107-1 is comprised of two bent metallic members (107-1a and 107-1B) which are in intimate contact with the reception electrode 104 by elasticity.

    Abstract translation: 提供了一种用于光功能部件的电源装置，该光功能部件能够长期可靠地向光功能部件供电，并且能够容易地更换光功能部件，以及具有这种电源装置的光功能模块，其中， 电源装置设置有接收电极104，供电电极107-1，其在接收电极104的侧面紧固接收电极104的同时向接收电极104供电，从而可拆卸地保持光学功能部件105-1;以及 保护构件108，其由绝缘材料制成并且围绕电源电极107-1以防止电流泄漏，并且电源电极107-1由两个弯曲的金属构件（107-1a和107-1B ），其通过弹性与接收电极104紧密接触。

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