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13 条记录 (耗时 0.017 秒)

    Multiplexer/Demultiplexer, Method for Fabricating the Same, and Optical Multiplexe/Demultiplexer Module
    3.
    发明申请
    Multiplexer/Demultiplexer, Method for Fabricating the Same, and Optical Multiplexe/Demultiplexer Module 审中-公开
    多路复用器/解复用器，其制造方法和光复用/解复用器模块

    公开(公告)号：US20080260331A1

    公开(公告)日：2008-10-23

    申请号：US11883256

    申请日：2006-01-20

    申请人： Homare Takeda ,  Koichi Furusawa ,  Junichi Kumasako ,  Xiangquan Zhang

    发明人： Homare Takeda ,  Koichi Furusawa ,  Junichi Kumasako ,  Xiangquan Zhang

    IPC分类号： G02B6/32

    CPC分类号： G02B6/2937 ,  G02B6/29361 ,  G02B6/29365 ,  G02B6/2938 ,  G02B6/32 ,  G02B6/4204 ,  G02B6/4215

    摘要： A lens 39 is molded in one of the surfaces of a support plate 33, and a lens is molded in one of the surfaces of a support plate 35. The support plate 33 is integrated with the support plate 35 with a filter 34 sandwiched between the other surfaces of the support plates 33 and 35. In the support plates 33 and 35, seal portions 38 and 40 are formed to have a height larger than a lens thickness, so as to surround lenses 39 and 41. A spacer 31 is bonded to the seal portion 38 of the support plate 33 with an adhesive agent, and a spacer 37 is bonded to the seal portion 40 of the support plate 35 with an adhesive agent. To both end faces of the optical multiplexer/demultiplexer 301 thus formed, fiber arrays 42 and 43 are coupled respectively to form an optical multiplexing/demultiplexing module 401.

    摘要翻译： 在支撑板33的一个表面上模制透镜39，并且在支撑板35的一个表面中模制透镜。 支撑板33与支撑板35一体地具有夹在支撑板33和35的其它表面之间的过滤器34。 在支撑板33和35中，密封部分38和40形成为具有大于透镜厚度的高度，以便围绕透镜39和41。 用粘合剂将间隔件31接合到支撑板33的密封部分38，并且用粘合剂将间隔件37接合到支撑板35的密封部分40。 对于如此形成的光复用器/解复用器301的两个端面，光纤阵列42和43分别耦合以形成光复用/解复用模块401。

    Optical transmission system, optical repeater, and optical transmission method
    4.
    发明授权
    Optical transmission system, optical repeater, and optical transmission method 有权
    光传输系统，光中继器，光传输方式

    公开(公告)号：US07372622B2

    公开(公告)日：2008-05-13

    申请号：US11389013

    申请日：2006-03-27

    申请人： Kentaro Nakamura ,  Takafumi Terahara ,  Rainer Hainberger ,  Junichi Kumasako

    发明人： Kentaro Nakamura ,  Takafumi Terahara ,  Rainer Hainberger ,  Junichi Kumasako

    IPC分类号： H01S3/00

    CPC分类号： H04B10/2916

    摘要： In a WDM transmission system employing a plurality of short wavelength bands having great attenuation due to optical fiber transmission, an optical repeater is constructed of a first multiplexing section and a second multiplexing section. The first multiplexing section is used for wavelength-multiplexing both the excitation light from a first Raman excitation light source, which distributively amplifies an S+ band included in light propagating through an optical fiber, and the light propagating through the optical fiber. The second multiplexing section is used for wavelength-multiplexing both the excitation light from a second Raman excitation light source, which distributively amplifies an S+ band included in light propagating through an optical fiber, and the light propagating through the optical fiber. The first and second multiplexing sections are provided between the optical fibers disposed between end offices. Thus an equal and satisfactory optical SN ratio even at any band are obtained.

    摘要翻译： 在采用由于光纤传输而具有很大衰减的多个短波段的WDM传输系统中，光中继器由第一多路复用部分和第二复用部分构成。 第一复用部分用于波长复用来自第一拉曼激励光源的激发光，该第一拉曼激发光源分布放大包含在通过光纤传播的光中的S +波段和通过光纤传播的光。 第二复用部分用于波长复用来自第二拉曼激发光源的激发光，该第二拉曼激励光源分布放大包含在通过光纤传播的光中的S +波段和通过光纤传播的光。 第一和第二复用部分设置在设置在端部之间的光纤之间。 因此，即使在任何频带也获得相等且令人满意的光学SN比。

    Raman amplifier and optical communication system including the same
    5.
    发明申请
    Raman amplifier and optical communication system including the same 审中-公开
    拉曼放大器和光通信系统包括相同

    公开(公告)号：US20080074733A1

    公开(公告)日：2008-03-27

    申请号：US11979672

    申请日：2007-11-07

    申请人： Tetsufumi Tsuzaki ,  Motoki Kakui ,  Takafumi Terahara ,  Junichi Kumasako

    发明人： Tetsufumi Tsuzaki ,  Motoki Kakui ,  Takafumi Terahara ,  Junichi Kumasako

    IPC分类号： H01S3/00

    CPC分类号： H01S3/302 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/09408 ,  H01S3/094096

    摘要： The present invention relates to a Raman amplifier where flexibility in device design considering both of Raman amplification and dispersion compensation is high. In the Raman amplifier, the Raman amplification optical fiber included in the optical amplification section and the dispersion compensating optical fiber included in the dispersion compensation section are arranged while being optically connected to each other. Since the optical amplification section and the dispersion compensation section are provided as independent optical devices, one device can be designed without being restricted to the design conditions of the other device.

    摘要翻译： 拉曼放大器本发明涉及考虑拉曼放大和色散补偿的器件设计中的灵活性高的拉曼放大器。 在拉曼放大器中，包括在光放大部分中的拉曼放大光纤和包括在色散补偿部分中的色散补偿光纤被布置成彼此光学连接。 由于光放大部分和色散补偿部分被设置为独立的光学器件，所以可以设计一个器件而不限于另一个器件的设计条件。

    Raman amplifier and optical communication system including the same
    7.
    发明授权
    Raman amplifier and optical communication system including the same 失效
    拉曼放大器和光通信系统包括相同

    公开(公告)号：US07307782B2

    公开(公告)日：2007-12-11

    申请号：US10208198

    申请日：2002-07-31

    申请人： Tetsufumi Tsuzaki ,  Motoki Kakui ,  Takafumi Terahara ,  Junichi Kumasako

    发明人： Tetsufumi Tsuzaki ,  Motoki Kakui ,  Takafumi Terahara ,  Junichi Kumasako

    IPC分类号： H01S3/00

    CPC分类号： H01S3/302 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/09408 ,  H01S3/094096

    摘要： The present invention relates to a Raman amplifier where flexibility in device design considering both of Raman amplification and dispersion compensation is high. In the Raman amplifier, the Raman amplification optical fiber included in the optical amplification section and the dispersion compensating optical fiber included in the dispersion compensation section are arranged while being optically connected to each other. Since the optical amplification section and the dispersion compensation section are provided as independent optical devices, one device can be designed without being restricted to the design conditions of the other device.

    摘要翻译： 拉曼放大器本发明涉及考虑拉曼放大和色散补偿的器件设计中的灵活性高的拉曼放大器。 在拉曼放大器中，包括在光放大部分中的拉曼放大光纤和包括在色散补偿部分中的色散补偿光纤被布置成彼此光学连接。 由于光放大部分和色散补偿部分被设置为独立的光学器件，所以可以设计一个器件而不限于另一个器件的设计条件。

    Optical transmission system and optical transmission method utilizing Raman amplification
    9.
    发明授权
    Optical transmission system and optical transmission method utilizing Raman amplification 有权
    光传输系统和利用拉曼放大的光传输方式

    公开(公告)号：US06741389B2

    公开(公告)日：2004-05-25

    申请号：US10093818

    申请日：2002-03-11

    申请人： Junichi Kumasako ,  Takafumi Terahara

    发明人： Junichi Kumasako ,  Takafumi Terahara

    IPC分类号： H01S300

    CPC分类号： H04B10/2916 ,  H04B2210/003 ,  H04B2210/258

    摘要： The present invention aims at providing an optical transmission system for improving transmission characteristics, taking account of the nonlinear optical effect to be caused not only in an optical fiber transmission path wherein the distributed Raman amplification is performed but also in an amplifying medium wherein the discrete Raman amplification is performed, within an optical transmission device. To this end, the optical transmission system of the present invention controls, in each repeating section, the supplying conditions of pumping lights at a distributed Raman amplifier and a discrete Raman amplifier, based on signal light powers at a signal light input point to the optical fiber transmission path and a signal light output point from the optical fiber transmission path, and signal light powers at a signal light input point to a DCF (amplifying medium) and a signal light output point from the DCF within an optical repeater, so that an amount of nonlinear optical effect caused in one repeating section is brought to a required value or less.

    摘要翻译： 本发明的目的在于提供一种用于提高传输特性的光传输系统，其考虑到不仅在其中执行分布式拉曼放大的光纤传输路径中引起的非线性光学效应，而且在其中分立拉曼 在光传输装置内进行放大。 为此，本发明的光传输系统在每个重复部分中控制在分布式拉曼放大器和离散拉曼放大器处的泵浦光的供给条件，基于在光信号光输入点处的信号光功率 光纤传输路径和来自光纤传输路径的信号光输出点，并且信号光在光中继器内的DCF（放大介质）的信号光输入点和来自DCF的信号光输出点供电，使得 在一个重复部分中引起的非线性光学效果的数量达到所需值或更小。