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1. 发明授权

US06744990B1 WDM optical transmission system and an optical transmission line thereof 失效
标题翻译： WDM光传输系统及其光传输线
公开(公告)号：US06744990B1
公开(公告)日：2004-06-01
申请号：US09434679
申请日：1999-11-05
申请人： Masatoshi Suzuki , Noriyuki Takeda , Noboru Edagawa , Hideaki Tanaka , Shinichi Nakagawa , Hidenori Taga , Koji Goto
发明人： Masatoshi Suzuki , Noriyuki Takeda , Noboru Edagawa , Hideaki Tanaka , Shinichi Nakagawa , Hidenori Taga , Koji Goto
IPC分类号： H04B1012
CPC分类号： H04B10/2935 , H04B10/25253 , H04J14/0221
摘要： An object of the present invention is to realize almost the same transmission characteristic in all wavelengths at a transmission rate of 10 Gb/s or more. An optical transmitter 10 outputs WDM signal light multiplexed with signal light of a plurality of wavelengths toward an optical transmission line 12. The optical transmission line 12 comprises an optical transmission fiber 14, an optical repeating amplifier 16 and a dispersion compensating fiber 18. The gain characteristic of the optical repeating amplifier 16 is set so that the gain becomes the maximum at the effective zero dispersion wavelength of the optical transmission line 12 and that lowers inversely proportional to the distance from the effective zero dispersion wavelength. The whole optical transmission line 12 is set so that the peak power deviation between the effective zero dispersion wavelength &lgr;0 and the wavelength &lgr;1 or &lgr;n on both end becomes approximately 4 dB.
摘要翻译：本发明的目的是以10Gb / s以上的传输速率实现所有波长的几乎相同的传输特性。光发送器10将与多个波长的信号光复用的WDM信号光输出到光传输线12.光传输线12包括光传输光纤14，光中继放大器16和色散补偿光纤18.增益光学重复放大器16的特性被设置为使得增益在光传输线路12的有效零色散波长处变为最大值，并且降低与距有效零色散波长的距离成反比。整个光传输线路12被设置为使得有效零色散波长λ0和两端的波长λ1或兰博丹之间的峰值功率偏差变为大约4dB。

2. 发明申请

US20050226622A1 Underwater repeater employing rare earth element doped fiber amplifier, Raman assist and optical pump source sparing 审中-公开
标题翻译：使用稀土元素掺杂光纤放大器的水下中继器，拉曼辅助和光泵源保护
公开(公告)号：US20050226622A1
公开(公告)日：2005-10-13
申请号：US10818888
申请日：2004-04-06
申请人： Patrick Trischitta , Koji Goto , Hidenori Taga
发明人： Patrick Trischitta , Koji Goto , Hidenori Taga
IPC分类号： H04B10/17 , H04J14/02
CPC分类号： H04B10/2918 , H04B10/2916 , H04J14/0221
摘要： An optical repeater is provided which is operable to amplify signals propagated by a pair of optical transmission fibers. The optical repeater includes a first rare earth element doped (REED) fiber coupled to a first transmission fiber of the pair of optical transmission fibers. A second rare earth element doped (REED) fiber is coupled to a second transmission fiber of the pair of optical transmission fibers. A plurality of optical pump sources are provided, there being either four or more pump sources, or at least two pump sources in which each pump source has a different center wavelength. One or more optical energy couplers are coupled to combine portions of the outputs of all the optical pump sources and to distribute the combined portions for insertion into each of the first and second REED fibers for amplification of signals and into each of the first and second transmission fibers for Raman amplification of signals.
摘要翻译：提供了一种光中继器，其可操作以放大由一对光传输光纤传播的信号。光中继器包括耦合到该对光传输光纤的第一传输光纤的第一稀土元素掺杂（REED）光纤。第二稀土元素掺杂（REED）光纤耦合到该对光传输光纤的第二传输光纤。提供了多个光泵浦源，其中有四个或更多个泵浦源，或至少两个泵浦源，其中每个泵浦源具有不同的中心波长。一个或多个光能耦合器被耦合以组合所有光泵浦源的输出的部分并且分配用于插入到每个第一和第二REED光纤中的组合部分，用于放大信号并进入第一和第二传输用于信号拉曼放大的纤维。

3. 发明授权

US06856771B2 Optical receiving apparatus and method 失效
标题翻译：光接收装置及方法
公开(公告)号：US06856771B2
公开(公告)日：2005-02-15
申请号：US10784048
申请日：2004-02-19
申请人： Hidenori Taga , Koji Goto
发明人： Hidenori Taga , Koji Goto
IPC分类号： H03F3/08 , H04B10/07 , H04B10/293 , H04B10/40 , H04B10/50 , H04B10/564 , H04B10/572 , H04B10/60 , H04B10/66 , H04L13/18 , H04B10/06 , H03K5/125
CPC分类号： H04L25/063 , H04B10/695
摘要： An optical receiving apparatus according to the present invention comprises an optical signal branching circuit for receiving a signal light input from an optical transmission line, a discriminator for discriminating an output signal of the optical signal branch circuit, an evaluator for evaluating characteristics of another output signal of the optical signal branching circuit. The evaluator includes a saturable absorber for determining the discrimination threshold of the discriminator.
摘要翻译：根据本发明的光接收装置包括用于接收从光传输线输入的信号光的光信号分支电路，用于鉴别光信号分支电路的输出信号的鉴别器，用于评估另一输出信号的特性的评估器的光信号分支电路。评估器包括用于确定鉴别器鉴别阈值的可饱和吸收器。

4. 发明授权

US06584255B2 Method for manufacturing optical fiber cable with optical fibers whose chromatic dispersion value are uniformed 失效
标题翻译：制造具有色散值均匀的光纤的光缆的方法
公开(公告)号：US06584255B2
公开(公告)日：2003-06-24
申请号：US10124183
申请日：2002-04-16
申请人： Hidenori Taga , Koji Goto
发明人： Hidenori Taga , Koji Goto
IPC分类号： G02B644
CPC分类号： G02B6/4482
摘要： An object of this invention is to manufacture an optical fiber cable having optical fibers with small characteristic differences at a high yield. Optical fibers in a first span are manufactured (S1), and each fiber is coated with a different color (S2). Each optical fiber is numbered in order of its chromatic dispersion value (S3). Optical fibers in a next span are manufactured (S4), and each optical fiber is arranged in order of its chromatic dispersion value (S5). Each optical fiber of the next span is coated with a color in inverse order to that of the antecedently connected optical fibers (S6). The optical fibers in the next span are connected to the antecedently connected optical fibers so that each optical fiber having a same color couples up (S7). Each connected optical fiber is renumbered in order of its chromatic dispersion value (S8). The operations of S4-S8 are repeated until reaching to a predetermined span number S9). When the optical fibers are connected as many the predetermined span number (S9), the optical fibers are bound up into one to make a cable (S10).
摘要翻译：本发明的一个目的是以高产率制造具有小特征差的光纤的光纤电缆。制造第一跨距的光纤（S1），每个光纤涂覆不同的颜色（S2）。每个光纤按其色散值的顺序编号（S3）。制造下一个跨度的光纤（S4），并且每个光纤按其色散值的顺序排列（S5）。下一跨距的每个光纤被涂覆有与先前连接的光纤相反的颜色（S6）。在下一个跨度中的光纤连接到先前连接的光纤，使得具有相同颜色的每个光纤耦合（S7）。每个连接的光纤按其色散值的顺序重新编号（S8）。重复S4-S8的操作直到达到预定的跨度号S9）。当光纤连接多个预定的跨度号（S9）时，将光纤绑在一起形成电缆（S10）。

5. 发明授权

US07177540B2 Method for upgrading an optical transmission system and an optical transmitter 失效
标题翻译：光传输系统和光发射机升级方法
公开(公告)号：US07177540B2
公开(公告)日：2007-02-13
申请号：US10903999
申请日：2004-07-29
申请人： Takanori Inoue , Hidenori Taga , Koji Goto
发明人： Takanori Inoue , Hidenori Taga , Koji Goto
IPC分类号： H04B10/08 , H01S3/00
CPC分类号： H04J14/0221
摘要： A transmission wavelength band in an optical transmission line is divided into a plurality of sub-bands and signal lights or an ASE dummy light is disposed per sub-band as a unit. The optical power of the ASE dummy light in each sub-band is controlled so as to realize the gain profile at a full implementation in the optical transmission line. While new signal lights are being added, the optical power of whole ASE dummy lights or the optical power of the ASE dummy lights in sub-bands adjacent to the sub-band in which the new signal lights are to be added is controlled while increasing the optical power of the new signal lights so that the transmission characteristics of the existing signal lights are not affected by the signal addition.
摘要翻译：光传输线中的透射波长带被分成多个子带和信号光，或者每个子带设置ASE伪光作为一个单位。控制每个子带中的ASE伪光的光功率，以便在光传输线中完全实现时实现增益分布。在添加新的信号灯的同时，控制整个ASE虚拟光的光功率或与要添加新信号灯的子带相邻的子带中的ASE伪光的光功率，同时增加新信号光功率使得现有信号灯的传输特性不受信号增加的影响。

6. 发明申请

US20050024715A1 Method for upgrading an optical transmission system and an optical transmitter 失效
标题翻译：光传输系统和光发射机升级方法
公开(公告)号：US20050024715A1
公开(公告)日：2005-02-03
申请号：US10903999
申请日：2004-07-29
申请人： Takanori Inoue , Hidenori Taga , Koji Goto
发明人： Takanori Inoue , Hidenori Taga , Koji Goto
IPC分类号： H04J14/00 , H04B10/07 , H04B10/294 , H04J14/02 , H01S3/00
CPC分类号： H04J14/0221
摘要： A transmission wavelength band in an optical transmission line is divided into a plurality of sub-bands and signal lights or an ASE dummy light is disposed per sub-band as a unit. The optical power of the ASE dummy light in each sub-band is controlled so as to realize the gain profile at a full implementation in the optical transmission line. While new signal lights are being added, the optical power of whole ASE dummy lights or the optical power of the ASE dummy lights in sub-bands adjacent to the sub-band in which the new signal lights are to be added is controlled while increasing the optical power of the new signal lights so that the transmission characteristics of the existing signal lights are not affected by the signal addition.
摘要翻译：光传输线中的透射波长带被分成多个子带和信号光，或者每个子带设置ASE伪光作为一个单位。控制每个子带中的ASE伪光的光功率，以便在光传输线中完全实现时实现增益分布。在添加新的信号灯的同时，控制整个ASE虚拟光的光功率或与要添加新信号灯的子带相邻的子带中的ASE伪光的光功率，同时增加新信号光功率使得现有信号灯的传输特性不受信号增加的影响。

7. 发明授权

US07088927B2 Optical receiving apparatus and method 失效
标题翻译：光接收装置及方法
公开(公告)号：US07088927B2
公开(公告)日：2006-08-08
申请号：US10783227
申请日：2004-02-19
申请人： Hidenori Taga , Koji Goto
发明人： Hidenori Taga , Koji Goto
IPC分类号： H04B10/06 , H03K5/125
CPC分类号： H04L25/063 , H04B10/695
摘要： An optical receiving apparatus includes a signal brancher for branching an optical input signal received from an optical transmission line into a first signal component and a second signal component, a clock extractor for extracting a clock having an amplitude from the second signal component, and a discriminator for discriminating the first signal component. The apparatus also includes a threshold controller for generating a discrimination threshold for the discriminator according to a relationship between the extracted clock amplitude and a bit error rate to which the extracted clock amplitude corresponds.
摘要翻译：光接收装置包括：信号分支器，用于将从光传输线接收的光输入信号分支为第一信号分量和第二信号分量;时钟提取器，用于从第二信号分量中提取具有振幅的时钟;以及鉴频器用于识别第一信号分量。该装置还包括阈值控制器，用于根据所提取的时钟振幅和所提取的时钟振幅对应的误比特率之间的关系，产生鉴别器的鉴别阈值。

8. 发明授权

US07236703B1 Optical wavelength division multiplexing device 有权
标题翻译：光波分复用装置
公开(公告)号：US07236703B1
公开(公告)日：2007-06-26
申请号：US10088503
申请日：2000-07-31
申请人： Shigeo Yamanaka , Takashi Mizuochi , Katsuhiro Shimizu , Koji Goto , Shinichi Nakagawa , Eiichi Shibano , Tadami Yasuda
发明人： Shigeo Yamanaka , Takashi Mizuochi , Katsuhiro Shimizu , Koji Goto , Shinichi Nakagawa , Eiichi Shibano , Tadami Yasuda
IPC分类号： H04J14/02
CPC分类号： H04B10/50 , G02B6/266 , G02B6/29376 , H04J14/02 , H04J14/0221
摘要： As is described above, an optical wavelength division multiplexing and transmission apparatus according to the present invention has the configuration in which a plurality of slave racks coupling to a master rack can be additionally installed one after another with the master rack. Therefore, in cases where it is desired to expand a function of a transmitter and a function of a receiver due to the increase of a quality of information to be transmitted, the additional installation of the slave rack can be performed without exerting influence on a communication means installed in advance and currently used. Accordingly, it can be expected that the optical wavelength division multiplexing and transmission apparatus is adapted for the optical communication service which is more and more increased in the future.
摘要翻译：如上所述，根据本发明的光波分复用和发送装置具有这样的配置，其中可以与主机架一个接一个地附加地安装耦合到主机架的多个从机架。因此，在由于要发送的信息的质量的增加而期望扩展发射机的功能和接收机的功能的情况下，可以执行从机架的附加安装而不对通信产生影响意味着事先安装，目前使用。因此，可以预期光波分复用和发送装置适用于将来越来越多的光通信业务。

9. 发明授权

US5510930A Light amplifying apparatus 失效
标题翻译：光放大装置
公开(公告)号：US5510930A
公开(公告)日：1996-04-23
申请号：US276408
申请日：1994-07-18
申请人： Kuniaki Motoshima , Tadayoshi Kitayama , Junichiro Yamashita , Eiichi Nakagawa , Shigeyuki Akiba , Masatoshi Suzuki , Koji Goto , Haruo Abe , Naoki Norimatsu
发明人： Kuniaki Motoshima , Tadayoshi Kitayama , Junichiro Yamashita , Eiichi Nakagawa , Shigeyuki Akiba , Masatoshi Suzuki , Koji Goto , Haruo Abe , Naoki Norimatsu
IPC分类号： G02B27/28 , H01S3/06 , H01S3/07 , H01S3/094 , H01S3/10 , H01S3/00
CPC分类号： H01S3/094003 , H01S3/09408
摘要： A light amplifying apparatus adopting a redundant structure. Optical isolators 13, 14 are inserted between pump light sources 1, 2 and a photocoupler 4 so as to prevent injection locking, thereby preventing fluctuation of pump power.In another embodiment, optical fibers 15 adequately longer than the coherence length of the excitation light waves output from the pump light sources are provided. In still another embodiment, the frequency of the driving current for the pump light sources is modulated. In a further embodiment, wave plates 20, 21 are provided so as to circularly polarize the light waves output from the pump light sources clockwise and counterclockwise.
摘要翻译：采用冗余结构的光放大装置。光隔离器13,14插入在泵浦光源1,2和光电耦合器4之间，以防止注入锁定，从而防止泵浦功率的波动。在另一个实施例中，提供了足够长于从泵浦光源输出的激发光波的相干长度的光纤15。在另一个实施例中，泵浦光源的驱动电流的频率被调制。在另一实施例中，波片20,21被设置成使从泵浦光源输出的光波顺时针和逆时针圆偏振。

10. 发明授权

US06292603B1 Dispersion compensation device 失效
标题翻译：色散补偿装置
公开(公告)号：US06292603B1
公开(公告)日：2001-09-18
申请号：US09207419
申请日：1998-12-08
申请人： Takashi Mizuochi , Tadayoshi Kitayama , Hideaki Tanaka , Koji Goto
发明人： Takashi Mizuochi , Tadayoshi Kitayama , Hideaki Tanaka , Koji Goto
IPC分类号： G02B628
CPC分类号： G02B6/12007 , G02B6/2932 , G02B6/29353 , G02B6/29377 , G02B6/29394 , H04B10/2519 , H04B2210/252 , H04B2210/254
摘要： A dispersion compensation device comprises a chirped grating, and a first optical unit for guiding at least a lightwave signal with a wavelength of &lgr;i that needs a positive dispersion compensation and is applied thereto to one end portion of the chirped grating whose grating pitch is shorter, and for furnishing light reflected by the chirped grating to outside the device. The device further comprises a second optical unit for guiding at least a lightwave signal with a wavelength of &lgr;i that needs a negative dispersion compensation and is applied thereto to another end portion of the chirped grating whose grating pitch is longer, and for furnishing light reflected by the chirped grating to outside the device. Both the first and second optical units can be either optical circulators or optical couplers.
摘要翻译：色散补偿装置包括啁啾光栅和第一光学单元，用于至少引导具有需要正色散补偿的兰姆波长的至少一个光波信号，并将其施加到其光栅间距较短的啁啾光栅的一个端部，并将由啁啾光栅反射的光提供到设备外部。该装置还包括第二光学单元，用于至少引导具有需要负色散补偿的兰姆波长的至少一个光波信号，并将其施加到光栅间距较长的啁啾光栅的另一端部，并且用于提供由啁啾光栅到设备外部。第一和第二光学单元都可以是光学循环器或光耦合器。

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