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1. 发明授权

US06532103B1 Optical fiber amplifier and optical transmission system using the same 失效
公开(公告)号：US06532103B1
公开(公告)日：2003-03-11
申请号：US09912526
申请日：2001-07-26
申请人： Shinji Sakano , Ichiro Yokota , Junya Kosaka , Takayuki Suzuki
发明人： Shinji Sakano , Ichiro Yokota , Junya Kosaka , Takayuki Suzuki
IPC分类号： H04B1002
CPC分类号： H04J14/0221 , H04B10/2941
摘要： A variable attenuator is inserted into an optical input part and a feedback control is performed so that an optical input to an amplifying optical fiber becomes constant. Further, a control for changing a total optical output and an optical input to the amplifying optical fiber is performed on the basis of channel number information obtained from a supervisory signal. When light to/from an intermediate optical component is detected and the absence of the component is detected, pumping is suppressed, thereby avoiding occurrence of an optical surge at the time of connection of the optical component and a signal indicative of detachment of the optical component is generated.

2. 发明授权

US06229936B1 Optical amplifier, optical transmission equipment, optical transmission system, and method thereof 失效
公开(公告)号：US06229936B1
公开(公告)日：2001-05-08
申请号：US09262344
申请日：1999-03-04
申请人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
发明人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
IPC分类号： G02B628
CPC分类号： H04B10/291 , H01S3/06758 , H01S2301/06 , H04B10/0775 , H04B10/0777 , H04B10/25133 , H04B10/2525 , H04B10/2912 , H04B10/2931 , H04B2210/078 , H04B2210/256
摘要： An optical transmission equipment for use in an optical transmission system, having an optical amplifier (10A), comprising: a first optical doped fiber (1A); a second optical doped fiber (1B); a third optical doped fiber (1C); an optical isolator (6) of bringing loss in the optical signal, being provided between the first optical doped fiber and the second optical doped fiber; a dispersion compensator (7) being provided between the second optical doped fiber and the third optical doped fiber; and a pumping light source (2) being optically connected to so that the optical doped fibers (1A, 1B, 1C) are excited in common.

3. 发明授权

US06400475B1 Optical transmission system and optical communications device 有权
标题翻译：光传输系统和光通信设备
公开(公告)号：US06400475B1
公开(公告)日：2002-06-04
申请号：US09191051
申请日：1998-11-12
申请人： Junya Kosaka , Takayuki Suzuki
发明人： Junya Kosaka , Takayuki Suzuki
IPC分类号： H04B1008
CPC分类号： H04B10/2971 , H04B10/0775 , H04B10/0779 , H04B10/07955 , H04B10/2972 , H04B2210/078 , H04B2210/258 , H04J14/0221
摘要： An optical transmission unit is comprised of an optical power control unit to adjust the optical power, an optical detection unit to detect the power of the optical signal from a transmission medium, an optical control-information generating unit to generate information relating to the size of the detected optical power monitor value, an optical control-information introduction unit to input the generated information into the transmission medium as optical control information, an optical control-information input detection unit to detect optical control information from the transmission medium, and a control unit to regulate the detected information so the optical power from the optical power adjustment device is within a specified value.
摘要翻译：光传输单元包括用于调整光功率的光功率控制单元，用于检测来自传输介质的光信号的功率的光检测单元，光控制信息产生单元，用于生成与所检测的光功率监视值，光控制信息引入单元，用于将生成的信息输入到作为光控制信息的传输介质中;光控制信息输入检测单元，用于检测来自传输介质的光控信息;以及控制单元以调节检测到的信息，使得来自光功率调节装置的光功率在规定值内。

4. 发明授权

US06314217B1 Optical transmission device and optical transmission system employing the same 失效
标题翻译：光传输装置及采用该传输装置的光传输系统
公开(公告)号：US06314217B1
公开(公告)日：2001-11-06
申请号：US09663378
申请日：2000-09-15
申请人： Junya Kosaka , Takayuki Suzuki , Hiroyuki Nakano
发明人： Junya Kosaka , Takayuki Suzuki , Hiroyuki Nakano
IPC分类号： G02B628
CPC分类号： H04B10/2935 , H04B2210/256 , Y10S372/703
摘要： An optical transmission device which reduces optical noise in an optical transmission system. The optical transmission device includes a core light amplifying unit, and a first buffer light amplifying unit for amplifying a first signal light from a first transmission path and an amplified second signal light from the core light amplifying unit. The first buffer light amplifying unit supplies the core light amplifying unit with the first signal light, and supplies the first transmission path with the amplified second signal light. Also provided is a second buffer light amplifying unit for amplifying a second signal light from a second transmission path and an amplified first signal light from the core light amplifying unit. The second buffer light amplifying unit supplies the core light amplifying unit with the second signal light, and supplies the second transmission path with the amplified first signal light.
摘要翻译：一种降低光传输系统中的光噪声的光传输装置。光传输装置包括核心光放大单元和用于放大来自第一传输路径的第一信号光和来自核心光放大单元的放大的第二信号光的第一缓冲光放大单元。第一缓冲光放大单元向核心光放大单元提供第一信号光，并且向第一传输路径提供放大的第二信号光。还提供了用于放大来自第二传输路径的第二信号光和来自核心光放大单元的放大的第一信号光的第二缓冲光放大单元。第二缓冲光放大单元向核心光放大单元提供第二信号光，并且向第二传输路径提供放大的第一信号光。

5. 发明授权

US06836587B2 Optical transmission device and optical transmission system employing the same 失效
标题翻译：光传输装置及采用该传输装置的光传输系统
公开(公告)号：US06836587B2
公开(公告)日：2004-12-28
申请号：US10654810
申请日：2003-09-05
申请人： Junya Kosaka , Takayuki Suzuki , Hiroyuki Nakano
发明人： Junya Kosaka , Takayuki Suzuki , Hiroyuki Nakano
IPC分类号： G02B628
CPC分类号： H04B10/2935 , H04B2210/256 , Y10S372/703
摘要： An optical transmission device which reduces optical noise in an optical transmission system. The optical transmission device includes a core light amplifying unit, and a first buffer light amplifying unit for amplifying a first signal light from a first transmission path and an amplified second signal light from the core light amplifying unit. The first buffer light amplifying unit supplies the core light amplifying unit with the first signal light, and supplies the first transmission path with the amplified second signal light. Also provided is a second buffer light amplifying unit for amplifying a second signal light from a second transmission path and an amplified first signal light from the core light amplifying unit. The second buffer light amplifying unit supplies the core light amplifying unit with the second signal light, and supplies the second transmission path with the amplified first signal light.
摘要翻译：一种降低光传输系统中的光噪声的光传输装置。光传输装置包括核心光放大单元和用于放大来自第一传输路径的第一信号光和来自核心光放大单元的放大的第二信号光的第一缓冲光放大单元。第一缓冲光放大单元向核心光放大单元提供第一信号光，并且向第一传输路径提供放大的第二信号光。还提供了用于放大来自第二传输路径的第二信号光和来自核心光放大单元的放大的第一信号光的第二缓冲光放大单元。第二缓冲光放大单元向核心光放大单元提供第二信号光，并且向第二传输路径提供放大的第一信号光。

6. 发明授权

US06829408B2 Optical amplifier, optical transmission equipment, optical transmission system, and method thereof 失效
公开(公告)号：US06829408B2
公开(公告)日：2004-12-07
申请号：US10727665
申请日：2003-12-05
申请人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
发明人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
IPC分类号： G02B628
CPC分类号： H04B10/291 , H01S3/06758 , H01S3/094061 , H01S2301/06 , H04B10/0775 , H04B10/0777 , H04B10/25133 , H04B10/2525 , H04B10/2912 , H04B10/2931 , H04B2210/074 , H04B2210/078 , H04B2210/256
摘要： An optical transmission equipment for use in an optical transmission system, having an optical amplifier (10A), comprising: a first optical doped fiber (1A); a second optical doped fiber (1B); a third optical doped fiber (1C); an optical isolator (6) of bringing loss in the optical signal, being provided between the first optical doped fiber and the second optical doped fiber; a dispersion compensator (7) being provided between the second optical doped fiber and the third optical doped fiber; and a pumping light source (2) being optically connected to so that the optical doped fibers (1A, 1B, 1C) are excited in common.

7. 发明授权

US06674938B2 Optical amplifier, optical transmission equipment, optical transmission system, and method thereof 失效
公开(公告)号：US06674938B2
公开(公告)日：2004-01-06
申请号：US10242600
申请日：2002-09-13
申请人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
发明人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
IPC分类号： G02B628
CPC分类号： H04B10/291 , H01S3/06758 , H01S3/094061 , H01S2301/06 , H04B10/0775 , H04B10/0777 , H04B10/25133 , H04B10/2525 , H04B10/2912 , H04B10/2931 , H04B2210/074 , H04B2210/078 , H04B2210/256
摘要： An optical transmission equipment for use in an optical transmission system, having an optical amplifier (10A), comprising: a first optical doped fiber (1A); a second optical doped fiber (1B); a third optical doped fiber (1C); an optical isolator (6) of bringing loss in the optical signal, being provided between the first optical doped fiber and the second optical doped fiber; a dispersion compensator (7) being provided between the second optical doped fiber and the third optical doped fiber; and a pumping light source (2) being optically connected to so that the optical doped fibers (1A, 1B, 1C) are excited in common.

8. 发明授权

US06195480B1 Optical transmission device and optical transmission system employing the same 失效
公开(公告)号：US06195480B1
公开(公告)日：2001-02-27
申请号：US09129844
申请日：1998-08-06
申请人： Junya Kosaka , Takayuki Suzuki , Hiroyuki Nakano
发明人： Junya Kosaka , Takayuki Suzuki , Hiroyuki Nakano
IPC分类号： G02B628
CPC分类号： H04B10/2935 , H04B2210/256 , Y10S372/703
摘要： An optical transmission device which reduces optical noise in an optical transmission system. The optical transmission device includes a core light amplifying unit, and a first buffer light amplifying unit for amplifying a first signal light from a first transmission path and an amplified second signal light from the core light amplifying unit. The first buffer light amplifying unit supplies the core light amplifying unit with the first signal light, and supplies the first transmission path with the amplified second signal light. Also provided is a second buffer light amplifying unit for amplifying a second signal light from a second transmission path and an amplified first signal light from the core light amplifying unit. The second buffer light amplifying unit supplies the core light amplifying unit with the second signal light, and supplies the second transmission path with the amplified first signal light.

9. 发明授权

US5943162A Optical amplifier, optical amplifying method and optical transmission system using the optical amplifier 失效
标题翻译：光放大器，光放大方法及使用光放大器的光传输系统
公开(公告)号：US5943162A
公开(公告)日：1999-08-24
申请号：US185095
申请日：1998-11-03
申请人： Junya Kosaka , Takayuki Suzuki , Hideyuki Kuwano
发明人： Junya Kosaka , Takayuki Suzuki , Hideyuki Kuwano
IPC分类号： G02F1/35 , G02B6/28 , H01S3/06 , H01S3/067 , H01S3/07 , H01S3/094 , H01S3/0941 , H01S3/10 , H04B10/2543 , H04B10/296 , H04B10/297 , H04J14/00 , H04J14/02 , H01S3/00
CPC分类号： H01S3/094003 , H04B10/2572 , H04B10/291 , H04B10/2931 , H04J14/0221 , H01S3/06712
摘要： An optical amplifier including an input unit, a polarization maintaining optical amplifying unit, an exciting unit and an output unit. The input unit enables receiving a first signal light in a first polarization state and a second signal light in a second polarization state different from the first polarization state. The polarization maintaining optical amplifying unit includes a polarization maintaining optical amplifying medium enabling receiving the first and second signal lights with the first and second polarization states maintained as they are. The exciting unit provides first and second exiting lights having polarization states corresponding to the first and second lights, respectively, so that the polarization maintaining optical amplifying unit is capable of selectively amplifying the first and second signal lights, and the output unit enables receiving the first and second signal lights after being amplified by the polarization maintaining optical amplifying unit and outputting the amplified first and second signal lights to a transmission line.
摘要翻译：一种光放大器，包括输入单元，偏振保持光放大单元，激励单元和输出单元。输入单元能够接收第一偏振态的第一信号光和不同于第一偏振状态的第二偏振状态的第二信号光。偏振维持光放大单元包括一个保持光放大介质，能够接收第一和第二极化状态原样保持的第一和第二信号光。励磁单元分别提供具有对应于第一和第二光的偏振状态的第一和第二出射光，使得偏振保持光放大单元能够选择性地放大第一和第二信号光，并且输出单元能够接收第一和第二光以及第二信号光，在被偏振保持光放大单元放大之后，将放大的第一和第二信号光输出到传输线。

10. 发明授权

US06496617B2 Optical amplifier, optical transmission equipment, optical transmission system, and method thereof 失效
标题翻译：光放大器，光传输设备，光传输系统及其方法
公开(公告)号：US06496617B2
公开(公告)日：2002-12-17
申请号：US09988696
申请日：2001-11-20
申请人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
发明人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
IPC分类号： G02B628
CPC分类号： H04B10/291 , H01S3/06758 , H01S3/094061 , H01S2301/06 , H04B10/0775 , H04B10/0777 , H04B10/25133 , H04B10/2525 , H04B10/2912 , H04B10/2931 , H04B2210/074 , H04B2210/078 , H04B2210/256
摘要： An optical transmission equipment for use in an optical transmission system, having an optical amplifier (10A), comprising: a first optical doped fiber (1A); a second optical doped fiber (1B); a third optical doped fiber (1C); an optical isolator (6) of bringing loss in the optical signal, being provided between the first optical doped fiber and the second optical doped fiber; a dispersion compensator (7) being provided between the second optical doped fiber and the third optical doped fiber; and a pumping light source (2) being optically connected to so that the optical doped fibers (1A, 1B, 1C) are excited in common.
摘要翻译：一种用于具有光放大器（10A）的光传输系统中的光传输设备，包括：第一光掺杂光纤（1A）; 第二光掺杂光纤（1B）; 第三光掺杂光纤（1C）; 在所述第一光掺杂光纤和所述第二光掺杂光纤之间设置带有光信号损耗的光隔离器（6）; 在所述第二光掺杂光纤和所述第三光掺杂光纤之间设置色散补偿器（7）和激光光源（2）被光学连接，使得掺杂光纤（1A，1B，1C）被共同激励。

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