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41. 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。

42. 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。

43. 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。

44. 发明授权

US5892608A Optical receiver device for dark soliton lightwave 失效
标题翻译：用于暗孤子光波的光接收器
公开(公告)号：US5892608A
公开(公告)日：1999-04-06
申请号：US770455
申请日：1996-12-20
申请人： Masatoshi Suzuki , Noboru Edagawa , Hidenori Taga , Shu Yamamoto , Shigeyuki Akiba
发明人： Masatoshi Suzuki , Noboru Edagawa , Hidenori Taga , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： G02F1/35 , H04B10/2507 , H04B10/2513 , H04B10/40 , H04B10/50 , H04B10/508 , H04B10/556 , H04B10/58 , H04B10/60 , H04J14/08 , H04B10/06
CPC分类号： H04B10/25077 , H04J14/08
摘要： An optical transmitter which reverses the ON-OFF state of the optical intensity of a bright soliton lightwave and generates a dark soliton lightwave having an optical phase shift, an optical receiver for the dark soliton lightwave, and a superfast, high-capacity optical transmission system which is capable of increasing the soliton pulse array density while suppressing timing jitter. The optical transmission system is provided with the optical transmitter which transmits a dark soliton lightwave having digital information, the optical receiver which receives the dark soliton lightwave as a return-to-zero pulse and a transmission optical fiber interconnecting the transmitter and the receiver. The system has a construction in which the transmission optical fiber has, at the wavelength of the transmission lightwave, a normal dispersion value which makes negative the average wavelength dispersion value over the entire length of the optical fiber, and the average value of the wavelength dispersion value and the optical output intensity of the transmission optical fiber have values so that a non-linear optical effect and a wavelength dispersion effect, which are exerted on the transmission lightwave, are balanced with each other.
摘要翻译：一种光发射器，其反转明亮的孤子光波的光强度的ON-OFF状态并产生具有光学相移的暗孤子光波，用于暗孤子光波的光接收器，以及超快大容量光传输系统其能够在抑制定时抖动的同时增加孤子脉冲阵列密度。光传输系统设置有发射具有数字信息的暗孤子光波的光发射机，接收暗孤子光波作为归零脉冲的光接收机和互连发射机和接收机的传输光纤。该系统具有这样的结构，其中传输光纤在传输光波长的波长处具有在光纤的整个长度上使平均波长色散值为负的正常色散值，并且波长色散的平均值值和发射光纤的光输出强度具有使得施加在透射光波上的非线性光学效应和波长色散效应彼此平衡的值。

45. 发明授权

US5886803A Bilateral optical transmission system and optical transceiver for pulse information 失效
标题翻译：双向光传输系统和光收发器用于脉冲信息
公开(公告)号：US5886803A
公开(公告)日：1999-03-23
申请号：US792366
申请日：1997-02-03
申请人： Takaya Yamamoto , Katsuyuki Yamamoto , Shu Yamamoto , Yotaro Yatsuzuka
发明人： Takaya Yamamoto , Katsuyuki Yamamoto , Shu Yamamoto , Yotaro Yatsuzuka
IPC分类号： H04J14/08 , H04B10/00 , H04B10/27 , H04B10/272 , H04B10/297 , H04B10/524 , H04J1/00 , H04J14/00 , H04J14/02
CPC分类号： H04B10/272
摘要： A bilateral optical transmission system for pulse information disclosed which can accommodate variations in the relationship between the down-link signal transmission rate and the up-link one. A single bilateral optical transmission line is laid between first and second positions. A transmission pulse train with pulse transmission time slots set therein at fixed time intervals is provided onto the transmission line from the first position. A return pulse train is retransmitted from the second position to the first position over the bilateral optical transmission line. The return pulse train is obtained by gating the transmission pulse train with up-link information pulses from the second position to the first position in synchronization with up-link pulse transmission time slots for the transmission of the up-link information pulses so that at least one predetermined transmission time slot in each unit transmission period defined by a predetermined number of pulse periods in the transmission pulse train is used as the up-link pulse transmission time slot. At the first position, at least one time slot other than the up-link pulse transmission time slot in each unit transmission period is used as at least one down-link pulse transmission time slot for the transmission of down-link information pulses from the first position to the second position.
摘要翻译：一种用于脉冲信息的双向光传输系统，其可以适应下行链路信号传输速率和上行链路信号传输速率之间的关系的变化。单个双向光传输线位于第一和第二位置之间。以固定时间间隔设置有脉冲传输时隙的传输脉冲串从第一位置提供到传输线上。返回脉冲串从第二位置通过双向光传输线重发到第一位置。返回脉冲序列是通过与上行链路脉冲传输时隙同步的从第二位置到第一位置的上行链路信息脉冲来选通发送脉冲串，用于传输上行链路信息脉冲，使得至少在发送脉冲串中由预定数量的脉冲周期定义的每个单位发送周期中的一个预定发送时隙用作上行链路脉冲发送时隙。在第一位置，使用在每个单位传输周期中的上行链路脉冲传输时隙之外的至少一个时隙作为至少一个下行链路脉冲传输时隙，用于从第一个位置到第二个位置。

46. 发明授权

US5629795A Optical amplifying-repeating transmission system 失效
标题翻译：光放大重复传输系统
公开(公告)号：US5629795A
公开(公告)日：1997-05-13
申请号：US521973
申请日：1995-08-31
申请人： Masatoshi Suzuki , Itsuro Morita , Shu Yamamoto , Noboru Edagawa , Hidenori Taga , Shigeyuki Akiba
发明人： Masatoshi Suzuki , Itsuro Morita , Shu Yamamoto , Noboru Edagawa , Hidenori Taga , Shigeyuki Akiba
IPC分类号： H04B10/2507 , H04B10/2525 , H04B10/29 , H04B10/291 , H01S3/00 , H04B10/02
CPC分类号： H04B10/25253
摘要： An optical amplifying-repeating transmission system is disclosed which is composed of an optical fiber for transmitting a lightwave signal with digital information added to return-to-zero lightwave pulses and a plurality of optical amplifying repeaters inserted in the optical fiber for transmission use. The mean value of wavelengths at which the wavelength dispersion of the optical fiber is zero is smaller than the wavelength of the lightwave signal which is transmitted over the system. The accumulated wavelength dispersion value of the optical fiber tends to increase with the distance of transmission, from a macroscopic viewpoint. The optical fiber for transmission is divided into a plurality of sections. In accordance with the accumulated wavelength dispersion value of the optical fiber in each section except at least the last one, a wavelength dispersion medium, which locally changes the wavelength dispersion in a manner to cancel the accumulated wavelength dispersion in the section at the wavelength of the lightwave signal, is inserted in the section to eliminate the accumulation of the timing jitter.
摘要翻译：公开了一种光放大重复传输系统，其由用于传输光波信号的光纤与添加到归零光波脉冲的数字信息以及插入光纤中的多个光放大中继器组成，用于传输使用。光纤的波长色散为零的波长的平均值小于在系统上传输的光波信号的波长。从宏观的观点来看，光纤的累积波长色散值随着透射距离而增加。用于传输的光纤被分成多个部分。根据除了至少最后一个部分之外的每个部分中的光纤的累积波长色散值，波长色散介质以局部改变波长色散的方式来消除在波长的波长处的部分中的累积波长色散光波信号，插入该部分以消除定时抖动的累积。

47. 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。

48. 发明授权

US5539557A Supervisory signal receiving method and apparatus 失效
标题翻译：监控信号接收方法及装置
公开(公告)号：US5539557A
公开(公告)日：1996-07-23
申请号：US343528
申请日：1994-11-17
申请人： Yukio Horiuchi , Hiroharu Wakabayashi , Shigeyuki Akiba , Shu Yamamoto
发明人： Yukio Horiuchi , Hiroharu Wakabayashi , Shigeyuki Akiba , Shu Yamamoto
IPC分类号： H04J14/00 , H04B10/07 , H04B10/077 , H04B10/2507 , H04B10/29 , H04J14/04 , H04J14/06 , H04B10/08
CPC分类号： H04B10/0777 , H04B2210/074 , H04B2210/078
摘要： At the time of receiving a repeater supervisory signal superimposed on or combined by wavelength multiplexing with a main optical signal in an optical amplifier repeater system, the received optical signal is subjected to a photoelectric conversion by a photodetector and then branched into two electric signals, the one of which is subjected to equalizing amplification, timing extraction and discrimination and regeneration to extract only the main signal component. The main signal component thus extracted and the main signal contained in the other electric signal, which is not regenerated, are respectively subjected to required equalization, delay adjustment and amplitude adjustment so that they match with one another in waveform, phase and amplitude. In addition, the amplitude adjustment of the main signal is automatically controlled. By differentially combining these signals to remove only the main signal component to minimize its residual value, thereby extracting the supervisory signal to be obtained.
摘要翻译： PCT No.PCT / JP94 / 00653 Sec。 371日期：1994年11月17日 102（e）1994年11月17日PCT PCT 1994年4月20日PCT公布。公开号WO94 / 24779 日期1994年10月27日在光学放大器中继器系统中接收到与主光信号叠加或组合在一起的中继器监视信号的时间，接收的光信号经受光电检测器的光电转换，然后分支成两个电信号，其中一个经受均衡放大，定时提取和鉴别和再生以仅提取主信号分量。如此提取的主信号分量和未再生的另一电信号中所包含的主信号分别经受所需的均衡，延迟调整和振幅调整，使得它们在波形，相位和幅度上彼此匹配。另外，主信号的幅度调整也被自动控制。通过差分地组合这些信号以仅去除主信号分量以最小化其残留值，从而提取要获得的监控信号。

49. 发明授权

US4790655A System for measuring laser spectrum 失效
标题翻译：激光光谱测量系统
公开(公告)号：US4790655A
公开(公告)日：1988-12-13
申请号：US859993
申请日：1986-05-05
申请人： Shu Yamamoto , Kiyofumi Mochizuki
发明人： Shu Yamamoto , Kiyofumi Mochizuki
IPC分类号： G01J3/02 , G01J9/04 , G01B9/02
CPC分类号： G01J9/04
摘要： A system for measuring laser spectrum is disclosed in which the laser light to be measured is branched into one branched light and the other branched light so that the laser spectrum of the light is measured from a beat output resulting from mixing a delayed light obtained by delaying the one branched light for a certain period of time with the other branched light undelayed. In accordance with the present invention, the delay time of the delayed light undergoes such variations as to assume a value equal to an integral multiple of a fixed delay time by the use of an optical directional coupler.
摘要翻译：公开了一种用于测量激光光谱的系统，其中被测量的激光被分支成一个分支的光，另一个分支的光使得光的激光光谱从由将延迟获得的延迟光混合的节拍输出测量一分支光在一段时间内与其他分支光不延迟。根据本发明，延迟光的延迟时间经历这样的变化，即通过使用光学定向耦合器而使其等于固定延迟时间的整数倍的值。

50. 发明授权

US4764980A System for measuring delay time variation in optical fiber digital communication system 失效
标题翻译：用于测量光纤数字通信系统的延迟时间变化的系统
公开(公告)号：US4764980A
公开(公告)日：1988-08-16
申请号：US820348
申请日：1986-01-21
申请人： Haruo Sakaguchi , Norio Seki , Shu Yamamoto , Yoshinao Iwamoto
发明人： Haruo Sakaguchi , Norio Seki , Shu Yamamoto , Yoshinao Iwamoto
IPC分类号： H04B3/10 , H04B10/00 , H04B10/035 , H04B10/071 , H04B10/077 , H04B10/079 , H04B10/2507 , H04B10/524 , H04B10/556 , H04B17/00 , H04L25/02 , H04B9/00 , H04J1/16
CPC分类号： H04B10/07
摘要： Delay time variation in an optical fiber digital communication system which includes optical regenerative repeaters is measured at one of terminal ends having reference clock signal. A monitor signal which depends upon the delay time variation is provided at the farthest repeater in an area where delay time is subject to secular change by dividing reference clock signal from said terminal end, and said monitor signal is returned to the terminal end from said farthest repeater, and the terminal end compares the returned monitor signal with the divided reference signal by using a phase comparator to provide measure of delay time variation.
摘要翻译：在具有参考时钟信号的终端之一处测量包括光学再生中继器的光纤数字通信系统中的延迟时间变化。根据延迟时间变化的监视信号通过从所述终端分配参考时钟信号而在延迟时间经历长期变化的区域中的最远转发器处被提供，并且所述监视信号从所述最远端返回到终端中继器，并且终端通过使用相位比较器将返回的监视信号与分频参考信号进行比较，以提供延迟时间变化的测量。

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