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21. 发明授权

US06181449B2 Wavelength division multiplexed optical processing device and optical communication transmission path 失效
标题翻译：波分复用光处理装置和光通信传输路径
公开(公告)号：US06181449B2
公开(公告)日：2001-01-30
申请号：US09032537
申请日：1998-02-27
申请人： Hidenori Taga , Kaoru Imai , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
发明人： Hidenori Taga , Kaoru Imai , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H04J1402
CPC分类号： H04B10/2935 , H04B10/25073 , H04B10/25133 , H04J14/0221
摘要： A wavelength division multiplexed optical processing device and an optical communication transmission path which are capable of significantly improving the transmission characteristic of wavelength division multiplexed optical signals. A wavelength division multiplexed optical processing device is formed by a first arrayed optical waveguide for demultiplexing entered wavelength division multiplexed optical signals, and outputting demultiplexed optical signals; a plurality of correction units for correcting respective optical signals demultiplexed by the first arrayed optical waveguide; and a second arrayed optical waveguide for multiplexing optical signals corrected by the correction unit, and outputting multiplexed optical signals. An optical communication transmission path is formed by an optical transmission path; and at least one wavelength division multiplexed optical processing device using an arrayed optical waveguide having a transmission wavelength characteristic with a flat top shape, which is inserted into the optical transmission path at a prescribed interval.
摘要翻译：能够显着提高波分复用光信号的传输特性的波分复用光处理装置和光通信传输路径。波分复用光处理装置由第一阵列光波导形成，用于对输入的波分复用光信号进行解复用，并输出解复用的光信号; 多个校正单元，用于校正由第一阵列光波导解复用的各个光信号; 以及第二阵列光波导，用于复用由所述校正单元校正的光信号，并且输出复用的光信号。光通信传输路径由光传输路径形成; 以及使用具有平坦顶部形状的透射波长特性的排列光波导的至少一个波分复用光学处理装置，其以规定的间隔插入到光传输路径中。

22. 发明授权

US5978529A Gain equalizer and optical amplifying transmission line 失效
标题翻译：增益均衡器和光放大传输线
公开(公告)号：US5978529A
公开(公告)日：1999-11-02
申请号：US36485
申请日：1998-03-06
申请人： Hidenori Taga , Noriyuki Takeda , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
发明人： Hidenori Taga , Noriyuki Takeda , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H04B10/2507 , H04B10/25 , H04B10/293 , H04J14/02 , G02B6/28
CPC分类号： H04B10/2935 , H04J14/0221
摘要： This invention provides the gain equalizer positioned to an optical amplifying transmission line for equalizing gains of said optical amplifying transmission line, comprising a plurality of first optical filters varying transmittance periodically in at least predetermined wavelength range, and one or more second optical filters that their transmittance peaks at a wavelength substantially coinciding to the predetermined transmittance bottom wavelength of the first optical filters and decreases in a predetermined range at both side of the predetermined transmittance bottom wavelength.
摘要翻译：本发明提供了一种位于光放大传输线上的增益均衡器，用于均衡所述光放大传输线的增益，包括在至少预定波长范围内周期性地改变透射率的多个第一滤光器和一个或多个第二滤光器，在与第一光学滤波器的预定透射率底部波长基本一致的波长处的峰值在预定透射率底部波长的两侧的预定范围内减小。

23. 发明授权

US6091538A Gain equalizing apparatus 失效
标题翻译：增益均衡装置
公开(公告)号：US6091538A
公开(公告)日：2000-07-18
申请号：US987433
申请日：1997-12-09
申请人： Noriyuki Takeda , Shigeyuki Akiba , Noboru Edagawa , Hidenori Taga
发明人： Noriyuki Takeda , Shigeyuki Akiba , Noboru Edagawa , Hidenori Taga
IPC分类号： H01S3/10 , H04B10/2507 , H04B10/29 , H04B10/291 , H04J14/00 , H04J14/02 , H01S3/00
CPC分类号： H04B10/294 , H04J14/0221 , H04B2210/258
摘要： An equalizing apparatus for equalizing gains of wideband wavelength-division multiplexed light and for improving the S/N ratio comprises a plurality of optical amplifyer for optically amplifying light in different wavelength groups, respectively; and multiplexer for multiplexing optically amplified light from said plurality of optically amplifying means.
摘要翻译：用于均衡宽带波分复用光的增益并用于提高S / N比的均衡装置包括分别用于光学放大不同波长组中的光的多个光放大器; 以及用于对来自所述多个光学放大装置的光放大的光进行复用的多路复用器。

24. 发明授权

US5162936A Apparatus for monitoring the operation of an optical repeater 失效
标题翻译：用于监测光学重复器的操作的装置
公开(公告)号：US5162936A
公开(公告)日：1992-11-10
申请号：US655530
申请日：1991-02-14
申请人： Hidenori Taga , Shu Yamamoto , Noboru Edagawa , Hiroharu Wakabayashi
发明人： Hidenori Taga , Shu Yamamoto , Noboru Edagawa , Hiroharu Wakabayashi
IPC分类号： H01S3/067 , H01S3/131 , H04B10/07 , H04B10/077 , H04B10/29 , H04B10/54 , H04B10/564
CPC分类号： H04B10/2931 , H04B10/0777 , H04B10/2912 , H04B10/2918 , H01S3/06754 , H01S3/10015 , H01S3/1301 , H04B2210/074
摘要： Apparatus for monitoring a plurality of optical repeaters of an optical communication system in which each said repeater directly amplifies an optical signal transmitted in an optical fiber and passing through the respective optical repeater, including an optical division circuit for dividing an outgoing main line signal and a monitoring signal, a format conversion circuit by which monitoring information is converted into binary information, a previous modulation circuit by which a monitoring signal is modulated with a sine wave, a comparison circuit which compares the monitoring signal with a reference voltage, a voltage controlled amplifier which amplifies the modulated monitoring signal, an automatic gain control circuit which regulates the output from the outgoing optical repeater, and an outgoing optical repeater which includes a stimulating light source, a wave synthesizer and a doped optical fiber.
摘要翻译：一种用于监视光通信系统的多个光中继器的设备，其中每个所述中继器直接放大在光纤中传输的光信号并通过相应的光中继器，包括用于划分输出主线信号的光分路电路和监视信号，将监视信息转换为二进制信息的格式转换电路，用正弦波调制监视信号的先前调制电路，将监视信号与参考电压进行比较的比较电路，压控放大器其放大调制监视信号，调节输出光中继器的输出的自动增益控制电路和包括刺激光源，波合成器和掺杂光纤的输出光中继器。

25. 发明授权

US06504638B1 Optical amplifying transmission system and optical amplifier 失效
标题翻译：光放大传输系统和光放大器
公开(公告)号：US06504638B1
公开(公告)日：2003-01-07
申请号：US09206512
申请日：1998-12-07
申请人： Keiji Tanaka , Noboru Edagawa , Hidenori Taga , Shu Yamamoto
发明人： Keiji Tanaka , Noboru Edagawa , Hidenori Taga , Shu Yamamoto
IPC分类号： H04B1016
CPC分类号： H04B10/294 , H04J14/0221
摘要： To increase the number of multiplexed wavelengths and to improve transmission characteristics in a wavelength-division-multiplexed transmission, a bandwidth compressor for bandwidth-compressing the wavelength-division-multiplexed signal light is disposed at a front part of respective optical amplifiers and a bandwidth expander for bandwidth-expanding the wavelength-division-multiplexed signal light output from said optical amplifiers is disposed at a rear part of said optical amplifiers.
摘要翻译：为了增加复用波长的数量并改善波分复用传输中的传输特性，用于带宽压缩波分复用信号光的带宽压缩器被布置在各个光放大器的前部，带宽扩展器为了带宽扩展，从所述光放大器输出的波分复用信号光布置在所述光放大器的后部。

26. 发明授权

US5838477A Optical submarine branching device 失效
标题翻译：光学潜艇分支装置
公开(公告)号：US5838477A
公开(公告)日：1998-11-17
申请号：US727678
申请日：1996-10-08
申请人： Shu Yamamoto , Noboru Edagawa , Hidenori Taga , Tetsuyuki Miyakawa
发明人： Shu Yamamoto , Noboru Edagawa , Hidenori Taga , Tetsuyuki Miyakawa
IPC分类号： G02B27/28 , G02B6/12 , G02B6/34 , G02F1/31 , H04B10/03 , H04B10/038 , H04B10/07 , H04B10/27 , H04B10/29 , H04B10/296 , H04J14/00 , H04J14/02 , H04B10/17
CPC分类号： G02B6/2932 , G02B6/12007 , G02B6/29383 , H04J14/0206 , H04J14/0212 , H04J14/0213 , G02B2006/12164
摘要： An optical submarine branching unit employing an optical circuit structure which is small in the number of optical components used, permits reduction of optical insertion loss and is well compatible with the ADD/DROP function suitable for use in wavelength multiplex transmission. An optical fiber pair provided in an optical submarine cable connecting between first and second points is branched toward a third point, an optical circulator capable of reversing the direction of rotation of an optical input/output is provided as optical switching means by which, in the event of a failure in the branch transmission system having the branched optical fiber pair, the optical fiber pair is connected between the first and second points directly without being branched to the third point.
摘要翻译：采用光学组件数量少的光学电路结构的光学海底分支单元允许减少光插入损耗，并且与适用于波长多路复用传输的ADD / DROP功能很好地兼容。设置在连接在第一和第二点之间的光学海底光缆中的光纤对被分配到第三点，能够反转光输入/输出的旋转方向的光循环器被提供作为光开关装置，在具有分支光纤对的分支传输系统中发生故障的事件，光纤对直接连接在第一和第二点之间，而不分支到第三点。

27. 发明授权

US5140452A Long-distance high-speed optical communication scheme 失效
标题翻译：长距离高速光通信方案
公开(公告)号：US5140452A
公开(公告)日：1992-08-18
申请号：US636863
申请日：1991-01-02
申请人： Shu Yamamoto , Hidenori Taga , Noboru Edagawa , Yoshihiro Yoshida , Shiro Ryu , Hiroharu Wakabayashi
发明人： Shu Yamamoto , Hidenori Taga , Noboru Edagawa , Yoshihiro Yoshida , Shiro Ryu , Hiroharu Wakabayashi
IPC分类号： G02B6/00 , G02F2/00 , H04B10/00 , H04B10/2525 , H04B10/508 , H04B10/524 , H04B10/54 , H04B10/588
CPC分类号： H04B10/505
摘要： In a long-distance high-speed optical communication scheme in which multiple optical amplifiers are provided at a large number of stages in optical fibers, an optical signal from a light source which has a desired small line width and oscillates at a single wavelength is modulated at a high speed by an external modulator and then transmitted in the fibers which are dispersion shifted optical fibers, the zero-dispersion wavelength in which is set to be larger than the oscillation wavelength of the light source. Therefore, noises and the modulation instability, which would occur due to the phase fluctuation in the oscillation wavelength of the light source, and the influence of a waveform distortion due to the dispersion in the optical fibers can be avoided to make it possible for the first time in history to transmit the optical signals at the high-speed in the long-distance optical communication system employing the optical amplifiers.
摘要翻译：在光纤中以多个阶段提供多个光放大器的长距离高速光通信方式中，来自具有期望的小线宽并且以单个波长振荡的光源的光信号被调制通过外部调制器以高速度传输，然后在作为色散位移光纤的光纤中传输，其中零色散波长被设置为大于光源的振荡波长。因此，可以避免由于光源的振荡波长的相位波动而产生的噪声和调制不稳定性，以及由于光纤中的色散引起的波形失真的影响，使得第一在使用光放大器的长距离光通信系统中以高速传输光信号的历史时间。

28. 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。

29. 发明授权

US5920413A Method and device for optical add/drop multiplexing using high speed polarization scrambler 失效
标题翻译：使用高速极化扰频器进行光分插复用的方法和装置
公开(公告)号：US5920413A
公开(公告)日：1999-07-06
申请号：US833097
申请日：1997-04-04
申请人： Takayuki Miyakawa , Hidenori Taga , Shu Yamamoto , Shigeyuki Akiba
发明人： Takayuki Miyakawa , Hidenori Taga , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： G02B27/28 , G02B6/293 , H04B10/07 , H04B10/2507 , H04B10/27 , H04B10/29 , H04J14/00 , H04J14/02
CPC分类号： H04J14/0201 , H04J14/0206
摘要： An optical add/drop multiplexing scheme capable of reducing the degradation of the transmission characteristic due to the beat noises caused by the interference of the fiber grating leakage components. An optical add/drop multiplexing device is formed by a high speed polarization scrambler for entering signal lights with a data modulation at a high speed bit rate applied thereto, and scrambling polarization states of entered signal lights at high speed, and an optical add/drop element for receiving the signal lights with the polarization states scrambled by the high speed polarization scrambler, and carrying out an add/drop multiplexing operation for signal lights in a specific wavelength among received signal lights. The high speed polarization scrambler scrambles the polarization states of the entered signal lights so as to lower a probability for having worst polarization states of signal lights and interference lights, by scrambling the polarization states of the entered signal lights into every possible polarization states at nearly equal probabilities.
摘要翻译：一种能够降低由于光纤光栅泄漏部件的干扰引起的节拍噪声导致的传输特性劣化的光分插复用方案。通过高速偏振加扰器形成光分插多路复用装置，用于以高速比特率对数据调制进入信号光，并以高速加扰输入的信号光的偏振状态，以及光分插用于接收具有由高速偏振加扰器加扰的偏振状态的信号光的元件，并对接收到的信号光中的特定波长的信号光进行分插复用操作。高速极化扰频器对输入的信号光的极化状态加扰，从而通过将输入的信号光的偏振状态加扰到几乎相等的每个可能的极化状态，降低具有信号光和干涉光的最差极化状态的概率概率

30. 发明授权

US5926300A Optical add-drop multiplexer 失效
标题翻译：光分插复用器
公开(公告)号：US5926300A
公开(公告)日：1999-07-20
申请号：US797393
申请日：1997-02-10
申请人： Takayuki Miyakawa , Hidenori Taga , Shu Yamamoto , Shigeyuki Akiba
发明人： Takayuki Miyakawa , Hidenori Taga , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： G02B27/10 , G02B6/34 , G02B27/28 , H04B10/07 , H04B10/2507 , H04B10/27 , H04B10/29 , H04J14/02
CPC分类号： G02B6/2932 , G02B6/29383 , H04J14/0201 , H04J14/0206 , H04J14/0213
摘要： The present invention is directed towards an optical ADM apparatus provided with a narrow band-pass filter which is capable of minimizing declination of the transmission characteristics. An optical transmission prohibiting element composed of an optical isolator and a fiber grating is connected in series to the downstream of a fiber grating interposed between two optical circulators. The drop light is reflected by the fiber grating and released from an output optical fiber of the optical circulator. A leak component of the drop light having passed through the fiber grating appears on the side of the isolator and runs across the isolator to the other fiber grating. Most of the leak component is however reflected by the fiber grating while its small portion enters the optical circulator via the fiber grating. The small portion of the leak component is as small as negligible and will hardly interfere with the add light. The optical transmission prohibiting element may be an optical circulator.
摘要翻译：本发明涉及一种具有窄带通滤波器的光学ADM装置，其能够最小化传输特性的偏差。由光隔离器和光纤光栅构成的光传输禁止元件串联连接到插入在两个光循环器之间的光纤光栅的下游。该光束由光纤光栅反射并从光环行器的输出光纤中释放。穿过光纤光栅的液滴光的泄漏分量出现在隔离器的侧面，并穿过隔离器到另一个光纤光栅。然而，大多数泄漏分量反射光纤光栅，而其小部分通过光纤光栅进入光环行器。泄漏部件的一小部分可以忽略不计，几乎不会妨碍加光。光传输禁止元件可以是光循环器。

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