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21. 发明授权

US06614588B1 Optical amplifier having various control circuitry 有权
公开(公告)号：US06614588B1
公开(公告)日：2003-09-02
申请号：US09725288
申请日：2000-11-29
申请人： Aritomo Uemura , Kiwami Matsushita , Yukio Horiuchi , Masatoshi Suzuki , Noboru Edagawa , Shu Yamamoto , Shigeyuki Akiba
发明人： Aritomo Uemura , Kiwami Matsushita , Yukio Horiuchi , Masatoshi Suzuki , Noboru Edagawa , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H01S300
CPC分类号： H04B10/29 , H04B10/2918 , H04B10/808
摘要： The optical amplifier according to the present invention is constructed such that the amount of the electric current fed to the power feeding line 2a is first detected by the current detection means, and then a setting signal is generated to each of the bypass circuits 22 and 23 in accordance with the thus detected amount of the fed current, and thereafter the output level of each of the optical repeater circuits 11 and 12 is controlled respectively by the bypass circuits 22 and 23, so that the output level of these repeater circuits 11 and 12 can be controlled in accordance with the amount of the current fed to the power feeding line 2a.

22. 发明授权

US06867908B2 Optical amplifier having various control circuitry 有权
标题翻译：具有各种控制电路的光放大器
公开(公告)号：US06867908B2
公开(公告)日：2005-03-15
申请号：US10401748
申请日：2003-03-31
申请人： Aritomo Uemura , Kiwami Matsushita , Yukio Horiuchi , Masatoshi Suzuki , Noboru Edagawa , Shu Yamamoto , Shigeyuki Akiba
发明人： Aritomo Uemura , Kiwami Matsushita , Yukio Horiuchi , Masatoshi Suzuki , Noboru Edagawa , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H03F3/08 , H04B3/36 , H04B10/03 , H04B10/079 , H04B10/29 , H04B10/293 , H04B10/80 , H01S3/00
CPC分类号： H04B10/29 , H04B10/2918 , H04B10/808
摘要： The optical amplifier according to the present invention is constructed such that the amount of the electric current fed to the power feeding line 2a is first detected by the current detection means, and then a setting signal is generated to each of the bypass circuits 22 and 23 in accordance with the thus detected amount of the fed current, and thereafter the output level of each of the optical repeater circuits 11 and 12 is controlled respectively by the bypass circuits 22 and 23, so that the output level of these repeater circuits 11 and 12 can be controlled in accordance with the amount of the current fed to the power feeding line 2a.
摘要翻译：根据本发明的光放大器被构造成使得通过电流检测装置首先检测馈送到馈电线2a的电流量，然后对每个旁路电路22和23产生设置信号根据这样检测到的馈电电流量，然后分别由旁路电路22和23控制每个光中继器电路11和12的输出电平，使得这些中继器电路11和12的输出电平可以根据馈送到馈电线2a的电流量进行控制。

23. 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。

24. 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。

25. 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。

26. 发明授权

US06188510B1 Optical amplifying transmission system and optical amplifying repeater 失效
标题翻译：光放大传输系统和光放大中继器
公开(公告)号：US06188510B1
公开(公告)日：2001-02-13
申请号：US09248399
申请日：1999-02-10
申请人： Noboru Edagawa , Shu Yamamoto , Shigeyuki Akiba
发明人： Noboru Edagawa , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H01S300
CPC分类号： H04B10/2918
摘要： An optical amplifying transmission system comprising a first optical amplifying transmission line including a first optical amplifier, a second optical amplifying transmission line including a second optical amplifier, a pumping light generator for generating pumping lights to be supplied to said first and second amplifiers, the powers of the pumping lights being variable, and first and second terminal stations which connect respectively to both ends of said first and second optical amplifying transmission lines.
摘要翻译：一种光放大传输系统，包括第一光放大传输线，包括第一光放大器，包括第二光放大器的第二光放大传输线，用于产生供给所述第一和第二放大器的泵浦光的泵浦光发生器，的泵浦光是可变的，以及分别连接到所述第一和第二光放大传输线的两端的第一和第二终端站。

27. 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。

28. 发明授权

US5585954A Apparatus for measuring optical transmission characteristic 失效
标题翻译：光传输特性测量装置
公开(公告)号：US5585954A
公开(公告)日：1996-12-17
申请号：US346092
申请日：1994-11-29
申请人： Hidenori Taga , Shu Yamamoto , Shigeyuki Akiba
发明人： Hidenori Taga , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H04L1/20 , H04L25/02 , H04B10/08 , H04B10/00
CPC分类号： H04L1/20 , H04B10/07953
摘要： An apparatus for measuring optical transmission characteristic, which has an input unit of data signal and of clock pulses, a signal decision unit, a display unit and a control unit. The signal decision unit comprises a plurality of signal decision circuits. A Q value employed as a parameter for the evaluation of the transmission characteristic of an optical communication system can be obtained in real time since bit error rates necessary for the calculation of the Q value can be simultaneously obtained by the plurality of signal decision circuits.
摘要翻译：一种用于测量光传输特性的装置，其具有数据信号和时钟脉冲的输入单元，信号判定单元，显示单元和控制单元。信号判定单元包括多个信号判定电路。可以实时获得用作评估光通信系统的传输特性的参数的Q值，因为可以通过多个信号判定电路同时获得用于计算Q值所需的误码率。

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

US5912750A Optical transmission line 失效
标题翻译：光传输线
公开(公告)号：US5912750A
公开(公告)日：1999-06-15
申请号：US779780
申请日：1997-01-07
申请人： Noriyuki Takeda , Takayuki Miyakawa , Hidenori Taga , Shigeyuki Akiba , Shu Yamamoto
发明人： Noriyuki Takeda , Takayuki Miyakawa , Hidenori Taga , Shigeyuki Akiba , Shu Yamamoto
IPC分类号： G02B6/02 , H04J14/00 , H04J14/02
CPC分类号： H04J14/0221
摘要： Wavelength multiplexed optical signals which are input into a first optical amplifier from an optical transmission terminal device over an optical fiber are differently amplified in respective wavelengths due to unevenness of gain of the optical amplifiers and then output. By providing M-transmission optical filters having an M-type transmission characteristic to cancel gain deviation of the optical amplifiers in respective wavelengths, a flat gain characteristic can be achieved even after the optical signals are transmitted via a plurality of optical amplifiers and a plurality of M-transmission optical filters. Also, by removing ASE in a wavelength range of 1.53 .mu.m which prevents signal amplification in a wavelength range of 1.55 .mu.m, the wavelength multiplexed optical signals which are sufficiently amplified can be transmitted to an optical reception terminal device over the optical fiber.
摘要翻译：通过光纤从光传输终端装置输入到第一光放大器中的波分复用光信号由于光放大器的增益不均匀而在各波长中不同地被放大，然后被输出。通过提供具有M型传输特性的M传输光学滤波器来消除各个波长的光放大器的增益偏差，即使在通过多个光放大器传输光信号和多个光放大器之后，也可以获得平坦的增益特性 M型传输滤光片。此外，通过在1.53μm的波长范围内去除ASE，防止在1.55μm的波长范围内的信号放大，可以充分放大的波长复用光信号可以通过光纤传输到光接收终端装置。

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