利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

207 条记录 (耗时 0.027 秒)

    Optical amplification module, optical amplification apparatus, and optical communications system
    1.
    发明授权
    Optical amplification module, optical amplification apparatus, and optical communications system 失效
    光放大模块，光放大装置和光通信系统

    公开(公告)号：US07336415B2

    公开(公告)日：2008-02-26

    申请号：US10615389

    申请日：2003-07-09

    申请人： Motoki Kakui ,  Toshiyuki Miyamoto ,  Masahiro Takagi

    发明人： Motoki Kakui ,  Toshiyuki Miyamoto ,  Masahiro Takagi

    IPC分类号： H04B10/17

    CPC分类号： H01S3/1301 ,  H01S3/06716 ,  H01S3/06754 ,  H01S3/094011 ,  H01S3/10069 ,  H01S2301/04

    摘要： The present invention relates to a practical optical amplification module and the like realizing a wide-band gain spectrum with a small relative gain non-uniformity in L band. Pumping light from a pumping light source is supplied to a Bi type EDF by way of an optical coupler. Multiplexed signal light of L band inputted by way of an input end reaches the Bi type EDF by way of an optical coupler, an optical isolator, and an optical coupler, and is collectively amplified in the Bi type EDF. The multiplexed signal light amplified in the Bi type EDF is outputted from an output end by way of an optical coupler, an optical isolator, and an optical coupler.

    摘要翻译： 本发明涉及实现具有L波段相对增益不均匀性小的宽带增益谱的实际的光放大模块等。 来自泵浦光源的抽吸光通过光耦合器提供给Bi型EDF。 通过输入端输入的L波段的多路复用信号光通过光耦合器，光隔离器和光耦合器到达Bi型EDF，并在Bi型EDF中集中放大。 在Bi型EDF中放大的复用信号光通过光耦合器，光隔离器和光耦合器从输出端输出。

    Optical fiber for amplification, optical amplifying apparatus, light source apparatus, photo-therapy apparatus, and exposure apparatus
    2.
    发明授权
    Optical fiber for amplification, optical amplifying apparatus, light source apparatus, photo-therapy apparatus, and exposure apparatus 失效
    用于放大的光纤，光学放大装置，光源装置，光疗装置和曝光装置

    公开(公告)号：US07369731B2

    公开(公告)日：2008-05-06

    申请号：US11130410

    申请日：2005-05-17

    申请人： Masahiro Takagi ,  Motoki Kakui ,  Akira Tokuhisa ,  Soichi Owa

    发明人： Masahiro Takagi ,  Motoki Kakui ,  Akira Tokuhisa ,  Soichi Owa

    IPC分类号： G02B6/02

    CPC分类号： H01S3/06754 ,  G02B6/02009 ,  H01S3/005 ,  H01S3/06729 ,  H01S3/06758 ,  H01S3/1608 ,  H01S3/1693 ,  H01S2301/02

    摘要： The present invention relates to an optical fiber for amplification, an optical amplifying apparatus, and so on, having a structure for enabling increase of power of output light, suppression of occurrence of nonlinear optical phenomena, and compact storage all together. The optical amplifying apparatus comprises an optical fiber for amplification amplifying input light inputted together with pumping light from a pumping light source. The optical fiber for amplification comprises a core region doped with a rare-earth element, and a cladding region provided on an outer periphery of the core region and having a refractive index lower than that of the core region. The core region has an outer diameter of 10 μm or more but 30 μm or less, and has a relative refractive index difference of 0.5% or more but 2.0% or less with respect to the cladding region. The cladding region has an outer diameter of 75 μm or more but 200 μm or less.

    摘要翻译： 本发明涉及一种用于放大的光纤，光放大装置等，具有能够增加输出光功率，抑制非线性光学现象的发生和小型存储的结构。 光放大装置包括用于放大放大与泵浦光源的泵浦光一起输入的输入光的光纤。 用于放大的光纤包括掺杂有稀土元素的芯区域和设置在芯区域的外周上并且折射率低于芯区域的折射率的包层区域。 芯区域的外径为10μm以上且30μm以下，相对折射率差为0.5％以上且2.0％以下。 包层区域的外径为75μm以上且200μm以下。

    Optical fiber for amplification, optical amplifying apparatus, light source apparatus, photo-therapy apparatus, and exposure apparatus
    3.
    发明申请
    Optical fiber for amplification, optical amplifying apparatus, light source apparatus, photo-therapy apparatus, and exposure apparatus 失效
    用于放大的光纤，光学放大装置，光源装置，光疗装置和曝光装置

    公开(公告)号：US20060263018A1

    公开(公告)日：2006-11-23

    申请号：US11130410

    申请日：2005-05-17

    申请人： Masahiro Takagi ,  Motoki Kakui ,  Akira Tokuhisa ,  Soichi Owa

    发明人： Masahiro Takagi ,  Motoki Kakui ,  Akira Tokuhisa ,  Soichi Owa

    IPC分类号： G02B6/16

    CPC分类号： H01S3/06754 ,  G02B6/02009 ,  H01S3/005 ,  H01S3/06729 ,  H01S3/06758 ,  H01S3/1608 ,  H01S3/1693 ,  H01S2301/02

    摘要： The present invention relates to an optical fiber for amplification, an optical amplifying apparatus, and so on, having a structure for enabling increase of power of output light, suppression of occurrence of nonlinear optical phenomena, and compact storage all together. The optical amplifying apparatus comprises an optical fiber for amplification amplifying input light inputted together with pumping light from a pumping light source. The optical fiber for amplification comprises a core region doped with a rare-earth element, and a cladding region provided on an outer periphery of the core region and having a refractive index lower than that of the core region. The core region has an outer diameter of 10 μm or more but 30 μm or less, and has a relative refractive index difference of 0.5% or more but 2.0% or less with respect to the cladding region. The cladding region has an outer diameter of 75 μm or more but 200 μm or less.

    摘要翻译： 本发明涉及一种用于放大的光纤，光放大装置等，具有能够增加输出光功率，抑制非线性光学现象的发生和小型存储的结构。 光放大装置包括用于放大放大与泵浦光源的泵浦光一起输入的输入光的光纤。 用于放大的光纤包括掺杂有稀土元素的芯区域和设置在芯区域的外周上并且折射率低于芯区域的折射率的包层区域。 芯区域的外径为10μm以上且30μm以下，相对折射率差为0.5％以上且2.0％以下。 包层区域的外径为75μm以上且200μm以下。

    Optical amplification fiber, fiber optic amplifier, and optical communication system
    4.
    发明授权
    Optical amplification fiber, fiber optic amplifier, and optical communication system 有权
    光放大光纤，光纤放大器和光通信系统

    公开(公告)号：US06804046B2

    公开(公告)日：2004-10-12

    申请号：US09969808

    申请日：2001-10-04

    申请人： Motoki Kakui ,  Masahiro Takagi

    发明人： Motoki Kakui ,  Masahiro Takagi

    IPC分类号： H01S300

    CPC分类号： H01S3/06754 ,  H01S3/06729

    摘要： This invention relates to an optical amplification fiber having a structure capable of exhibiting an excellent amplification characteristics, and the like. In the optical amplification fiber, the ratio (&agr;P/&agr;S) of an unsaturated absorption peak value &agr;P in a pumping light wavelength band of 0.98 &mgr;m to an unsaturated absorption peak value &agr;S in a signal wavelength band of 1.55 &mgr;m is 0.8 or more and, more preferably, 0.9 or more.

    摘要翻译： 本发明涉及具有能够表现出优异的放大特性的结构的光放大光纤等。 在光放大光纤中，在0.98μm的泵浦光波长带中的不饱和吸收峰值αP与1.55μm的信号波长带中的不饱和吸收峰值αS的比（αP/αS）为0.8以上， 更优选为0.9以上。

    Amplification optical fiber and fiber optic amplifier including the same
    6.
    发明授权
    Amplification optical fiber and fiber optic amplifier including the same 有权
    放大光纤和光纤放大器包括相同

    公开(公告)号：US06865019B2

    公开(公告)日：2005-03-08

    申请号：US09988633

    申请日：2001-11-20

    申请人： Soichi Endo ,  Kazuhiro Okamoto ,  Masahiro Takagi ,  Motoki Kakui

    发明人： Soichi Endo ,  Kazuhiro Okamoto ,  Masahiro Takagi ,  Motoki Kakui

    IPC分类号： G02B6/00 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  H01S3/102 ,  H01S3/00

    CPC分类号： H01S3/06716 ,  H01S3/06708

    摘要： The invention relates to an amplification optical fiber that is suitable for amplification of signals in the L-band, that has the effect of suppressing normal four-wave mixing (FWM) occurring between signals, and that has the structure for effectively suppressing occurrence of non-degenerative FWM as well, and a fiber optic amplifier including the same. A fiber optic amplifier according to the present invention incorporates an amplification optical fiber having a core region doped with a rare earth element, a zero-dispersion wavelength of not more than a wavelength of pumping light, and an effective cutoff wavelength of 1.1 μm or more but not more than the wavelength of the pumping light. Not only the normal FWM but also the non-degenerative FWM is effectively suppressed by application of the amplification optical fiber.

    摘要翻译： 本发明涉及一种适用于L波段信号放大的放大光纤，其具有抑制信号之间发生的正常四波混频（FWM）的作用，具有有效抑制非波形发生的结构 - 代数FWM，以及包括其的光纤放大器。 根据本发明的光纤放大器包括具有掺杂有稀土元素的核心区域，不大于泵浦光波长的零色散波长和1.1μm或更大的有效截止波长的放大光纤 但不超过泵浦光的波长。 通过应用放大光纤不仅有效地抑制正常的FWM，而且非退化的FWM。

    Optical fiber for optical amplifier, optical fiber amplifier and optical fiber laser
    7.
    发明授权
    Optical fiber for optical amplifier, optical fiber amplifier and optical fiber laser 有权
    光放大器光纤，光纤放大器和光纤激光器

    公开(公告)号：US06490078B2

    公开(公告)日：2002-12-03

    申请号：US09809301

    申请日：2001-03-16

    申请人： Tadashi Enomoto ,  Masahiro Takagi ,  Yuichi Ohga ,  Motoki Kakui ,  Shinji Ishikawa ,  Masakazu Shigehara ,  Shinji Endo

    发明人： Tadashi Enomoto ,  Masahiro Takagi ,  Yuichi Ohga ,  Motoki Kakui ,  Shinji Ishikawa ,  Masakazu Shigehara ,  Shinji Endo

    IPC分类号： G02B634

    CPC分类号： H01S3/06708 ,  H01S3/06716 ,  H01S3/06729 ,  H01S3/06754

    摘要： The present invention relates to an OFA having a high signal gain, easily manufactured, having a high mechanical strength, having a small splice loss with respect to other optical fibers, and rarely encountering the occurrence of noise at a signal wavelength. The OFA according to the present invention has a function of amplifying signals propagating therethroug by pumping light supplied thereto, and comprises, at least, a core region, an inner cladding region provided on the periphery of the core region, an outer cladding region provided on the periphery of the inner cladding region, and one or more node coupling gratings. An element for signal amplification is added to at least the core region. The core region has a structure ensuring a core mode with respect to the signals, while the inner cladding region has a structure ensuring a multi-mode with respect to the pumping light. Each of the mode coupling gratings passes core mode signals therethrough, and induces a mode coupling between the inner cladding mode and the core mode with respect to the pumping light.

    摘要翻译： 本发明涉及具有高机械强度，易于制造的具有高信号增益，相对于其它光纤具有小的接合损耗，并且很少遇到在信号波长处的噪声的发生的OFA。 根据本发明的OFA具有通过泵送供给到其上的光来传播传播的信号的功能，并且至少包括芯区域，设置在芯区域周围的内包层区域，设置在芯区域 内包层区域的周边，以及一个或多个节点耦合光栅。 用于信号放大的元件至少加到核心区域。 芯区域具有确保相对于信号的芯模式的结构，而内包层区域具有确保相对于泵浦光的多模式的结构。 每个模式耦合光栅通过芯模信号，并且相对于泵浦光在内包层模式和芯模之间引起模耦合。

    RADIO COMMUNICATION APPARATUS, COMPUTER READABLE STORAGE MEDIUM, AND RADIO COMMUNICATION SYSTEM
    9.
    发明申请
    RADIO COMMUNICATION APPARATUS, COMPUTER READABLE STORAGE MEDIUM, AND RADIO COMMUNICATION SYSTEM 有权
    无线电通信设备，计算机可读存储介质和无线电通信系统

    公开(公告)号：US20110044302A1

    公开(公告)日：2011-02-24

    申请号：US12438845

    申请日：2008-12-18

    申请人： Kiyoshi Toshimitsu ,  Masahiro Takagi ,  Ryoko Matsuo ,  Toshihisa Nabetani ,  Tatsuma Hirano ,  Tomoko Adachi

    发明人： Kiyoshi Toshimitsu ,  Masahiro Takagi ,  Ryoko Matsuo ,  Toshihisa Nabetani ,  Tatsuma Hirano ,  Tomoko Adachi

    IPC分类号： H04W40/00

    CPC分类号： H04W72/02 ,  H04W16/14

    摘要： In a radio communication system that simultaneously uses plural radio channels (STA1), a radio communication apparatus (11-15; 20-25) can quickly secure plural radio channels simultaneously used for radio communication while preventing collision with a radio signal transmitted by another radio communication apparatus so away from the radio communication apparatus that the radio communication apparatus cannot detect radio waves. A radio communication apparatus STA1 according to the present invention includes a receiving unit 10 which receives, when a first signal is transmitted via each of the plural radio channels (21-25), the first signal though at least one or more radio channels among the plural radio channels (11-15), and performs carrier sense for each of the plural radio channels used for the transmission of the first signal, a selecting unit 40 which selects a radio channel used for radio communication out of radio channels set in a standby state, and transmitting unit 20 which transmits a response signal for the first signal via the selected radio channel.

    摘要翻译： 在同时使用多个无线电信道（STA1）的无线电通信系统中，无线电通信装置（11-15; 20-25）可以快速地固定同时用于无线电通信的多个无线电信道，同时防止与另一个无线电台发送的无线电信号的冲突 通信装置远离无线电通信装置，无线电通信装置不能检测无线电波。 根据本发明的无线电通信装置STA1包括：接收单元10，当经由多个无线电信道（21-25）中的每一个发送第一信号时，接收单元10通过至少一个或多个无线电信道接收第一信号 多个无线电信道（11-15），并且对于用于发送第一信号的多个无线电信道中的每一个执行载波侦听;选择单元40，其从设置在待机状态的无线电信道中选择用于无线电通信的无线电信道 状态和发送单元20，其经由所选择的无线电信道发送用于第一信号的响应信号。