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1. 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。

2. 发明授权

US06188508B1 Control signal superimposer 有权
标题翻译：控制信号叠加器
公开(公告)号：US06188508B1
公开(公告)日：2001-02-13
申请号：US09324395
申请日：1999-06-03
申请人： Yukio Horiuchi , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
发明人： Yukio Horiuchi , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H01S300
CPC分类号： H04B10/2916 , H04B10/0775 , H04B10/0777 , H04B2210/074 , H04B2210/078
摘要： A control signal superimposer for superimposing a control signal on a signal light, comprising a pumping light source for generating a pumping light with intensity fluctuation in accordance with the control signal; a Raman amplification medium pumped by the pumping light from the pumping light source for Raman-amplifying the signal light; a combiner for combining the pumping light output from the pumping light source and the signal light to be Raman-amplified and then supplying them to the Raman amplification medium; and an optical filter for extracting the signal light component from the output light of the Raman amplification medium and terminating the pumping light component.
摘要翻译：一种用于将控制信号叠加在信号光上的控制信号叠加器，包括用于根据控制信号产生强度波动的泵浦光的泵浦光源; 由来自泵浦光源的泵浦光泵浦拉曼放大信号光的拉曼放大介质; 组合器，用于将从泵浦光源输出的泵浦光与要拉曼放大的信号光组合，然后将其提供给拉曼放大介质; 以及用于从拉曼放大介质的输出光提取信号光分量并终止泵浦光分量的滤光器。

3. 发明授权

US06556325B1 Optical repeater monitoring system and a method thereof 失效
标题翻译：光中继器监控系统及其方法
公开(公告)号：US06556325B1
公开(公告)日：2003-04-29
申请号：US09507233
申请日：2000-02-18
申请人： Yukio Horiuchi , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
发明人： Yukio Horiuchi , Masatoshi Suzuki , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： H04B1002
CPC分类号： H04B10/2916 , H04B10/0777 , H04B2210/074
摘要： An optical repeater monitoring system, according to the invention, comprises an oscillating source, a reference signal transmitter for transmitting a reference signal of a predetermined frequency generated from an output of the oscillating source to a first optical fiber, and an optical repeater. The optical repeater has a first photodetector for converting light from the first optical fiber into an electrical signal, a reference signal extractor for extracting a component of the reference signal from an output of the first photodetector, a carrier generator for generating a carrier from an output of the reference signal extractor, a monitor signal modulator for modulating the carrier generated by the carrier generator with a monitor signal showing a operating state of the optical repeater, a transmitter for transmitting an output of the monitor signal modulator to a second optical fiber. The system further comprises a demodulating signal generator for generating a demodulating signal from either of the output from the oscillating source and the reference signal, the demodulating signal having a frequency equal to that of the monitor signal carrier, a second photodetector for photodetecting the light propagated on the second fiber, and a monitor signal demodulator for demodulating the monitor signal from outputs of the second photodetector and demodulating signal generator.
摘要翻译：根据本发明的光中继器监视系统包括振荡源，参考信号发射器，用于将从振荡源的输出产生的预定频率的参考信号传输到第一光纤，以及光中继器。光中继器具有用于将来自第一光纤的光转换成电信号的第一光电检测器，用于从第一光电检测器的输出提取参考信号的分量的参考信号提取器，用于从输出端产生载波的载波发生器参考信号提取器的监视信号调制器，用于利用示出所述光中继器的操作状态的监视信号调制由所述载波发生器产生的所述载波的监视信号调制器，用于将所述监视信号调制器的输出发送到第二光纤的发射器。该系统还包括解调信号发生器，用于从振荡源的输出和参考信号中的任一个产生解调信号，解调信号的频率等于监视信号载波的频率;第二光电检测器，用于光检测传播的光以及用于从第二光电检测器和解调信号发生器的输出解调监视信号的监视信号解调器。

4. 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.

5. 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。

6. 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。

7. 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。

8. 发明授权

US6021235A Wavelength-division multiplexing optical transmission system 失效
标题翻译：波分复用光传输系统
公开(公告)号：US6021235A
公开(公告)日：2000-02-01
申请号：US127564
申请日：1998-07-31
申请人： Shu Yamamoto , Hidenori Taga , Masatoshi Suzuki , Noboru Edagawa , Shigeyuki Akiba
发明人： Shu Yamamoto , Hidenori Taga , Masatoshi Suzuki , Noboru Edagawa , Shigeyuki Akiba
IPC分类号： H04J14/00 , G02B6/02 , H04B10/2507 , H04B10/2525 , H04J14/02 , G02B6/28
CPC分类号： H04B10/2525 , H04B2210/252 , H04B2210/254
摘要： A new two-way WDM optical transmission system is provided. The WDM optical transmission system comprises a two-way optical fiber cable, a first dispersion compensation optical fiber (DCOF) connected to one end of the optical fiber cable, a second DCOF connected to another end of the optical fiber cable, a chromatic dispersion compensating transmitter unit and a chromatic dispersion compensating receiver unit. The two-way optical fiber cable comprises a plurality of segments. The first DCOF is connected to one end of the optical fiber cable and has a compensation amount of a half of a one segment dispersion D.sub.c of the optical fiber cable. The second DCOF is connected to another end of the optical fiber cable and has the compensation amount of the half of the one segment dispersion D.sub.c. And the chromatic dispersion compensating transmitter unit compensates accumulated residual chromatic dispersions to be caused by higher-order wavelength dispersion of the optical fiber cable at each signal wavelength. Further, the chromatic dispersion compensating receiver unit compensates accumulated residual chromatic dispersions caused by higher-order wavelength dispersion of the optical fiber cable at each signal wavelength. The chromatic dispersion compensating transmitter unit has a plurality of optical transmitters, a multiplexer combining a plurality of different wavelength bands and a plurality of chromatic dispersion compensators. And the chromatic dispersion compensating receiver unit has a demultiplexer, a plurality of optical receiver and a plurality of chromatic dispersion compensators.
摘要翻译：提供了一种新的双向WDM光传输系统。 WDM光传输系统包括双向光纤电缆，连接到光纤电缆的一端的第一色散补偿光纤（DCOF），连接到光纤电缆的另一端的第二DCOF，色散补偿发射单元和色散补偿接收单元。双向光缆包括多个段。第一DCOF连接到光纤电缆的一端，并且具有光纤电缆的一个分段色散Dc的补偿量的一半。第二DCOF连接到光纤电缆的另一端，并且具有一个分段分散体Dc的一半的补偿量。并且色散补偿发送单元补偿在每个信号波长处由光纤电缆的高阶波长色散引起的累积残余色散。此外，色散补偿接收单元补偿由每根信号波长的光纤缆线的高阶波长色散引起的累积的残留色散。色散补偿发射器单元具有多个光发射器，多个组合多个不同波长带的多路复用器和多个色散补偿器。并且色散补偿接收单元具有解复用器，多个光接收器和多个色散补偿器。

9. 发明授权

US6005702A Optical transmission device, WDM optical transmission apparatus, and optical transmission system using return-to-zero optical pulses 失效
标题翻译：光传输设备，WDM光传输设备和使用归零光脉冲的光传输系统
公开(公告)号：US6005702A
公开(公告)日：1999-12-21
申请号：US802698
申请日：1997-02-19
申请人： Masatoshi Suzuki , Itsuro Morita , Noboru Edagawa , Shu Yamamoto , Shigeyuki Akiba
发明人： Masatoshi Suzuki , Itsuro Morita , Noboru Edagawa , Shu Yamamoto , Shigeyuki Akiba
IPC分类号： G02F1/01 , H04B10/2507 , H04B10/2525 , H04B10/508 , H04B10/516 , H04B10/524 , H04B10/556 , H04B10/58 , H04B10/61 , H04J14/00 , H04J14/02 , H04L25/02 , H04L25/49 , H04B10/04 , H04B10/12
CPC分类号： H04B10/505 , H04B10/5051 , H04B10/506 , H04B10/508 , H04J14/02
摘要： An optical transmission device using return-to-zero optical pulses as transmission optical pulses, which is capable of enhancing a transmission distance as well as a wavelength range with satisfactory transmission characteristics and enabling an easy realization of the wavelength division multiplexing optical transmission. The optical transmission device is formed by an optical transmitter for transmitting transmission optical pulses by superposing digital data signals onto return-to-zero optical pulses, and a modulator for applying one of a phase modulation and a frequency modulation in synchronization with a transmission rate of the transmission optical pulses, to the transmission optical pulses transmitted by the optical transmitter. This optical transmission device can be utilized in forming a wavelength division multiplexing optical transmission apparatus and an optical transmission system.
摘要翻译：一种使用归零光脉冲作为传输光脉冲的光传输装置，其能够增强传输距离以及具有令人满意的传输特性的波长范围，并且能够容易地实现波分复用光传输。光传输装置由光发射机形成，用于通过将数字数据信号叠加在归零光脉冲上来发送传输光脉冲;以及调制器，用于将相位调制和频率调制中的一个与传输速率传输光脉冲，由光发送器传输的传输光脉冲。该光传输装置可以用于形成波分复用光传输装置和光传输系统。

10. 发明授权

US5966228A Optical transmission system and optical repeater 失效
标题翻译：光传输系统和光中继器
公开(公告)号：US5966228A
公开(公告)日：1999-10-12
申请号：US756609
申请日：1996-11-26
申请人： Shigeyuki Akiba , Shu Yamamoto , Masatoshi Suzuki , Noboru Edagawa , Hidenori Taga
发明人： Shigeyuki Akiba , Shu Yamamoto , Masatoshi Suzuki , Noboru Edagawa , Hidenori Taga
IPC分类号： G02F1/35 , G02B6/34 , H04B10/2507 , H04B10/2519 , H04B10/2525 , H04B10/29 , H04B10/291 , H04J14/00 , H04J14/02 , H04B10/18
CPC分类号： H04B10/2935 , H04B10/25253 , G02B6/29317 , G02B6/29394
摘要： An optical transmission system comprises transmission optical fibers 14 connected between an optical transmission terminal 10 and an optical receiving terminal 12 via optical amplifying repeaters 16, and equalizing fiber 18 each connected in each equalizing interval. The equalizing fiber 18 is typically located at the terminal end of each equalizing interval. Each transmission optical fiber 14 is a dispersion-shifted fiber whose wavelength dispersion is substantially zero in a specific band, for example, 1.5 .mu.m. The optical amplifying repeaters 16 include an optical amplifier, and a dispersion compensating optical element having wavelength dispersion characteristics that exhibit an inclination opposite from that of wavelength characteristics of wavelength dispersion of the transmission optical fiber 14 (more specifically, a minus inclination with respect to the wavelength). The dispersion compensating optical element compensates offset values of cumulative wavelength dispersion among different wavelengths. The dispersion compensating optical element can be made by a fiber grating technology.
摘要翻译：光传输系统包括经由光放大中继器16连接在光传输终端10和光接收终端12之间的传输光纤14，以及均衡光纤18，每个均衡间隔均连接。均衡纤维18通常位于每个均衡间隔的终端处。各透射光纤14是在特定频带例如1.5μm的波长色散基本为零的色散位移光纤。光放大中继器16包括光放大器和具有波长色散特性的色散补偿光学元件，其具有与透射光纤14的波长色散的波长特性相反的倾斜度（更具体地说，相对于波长）。色散补偿光学元件补偿不同波长之间的累积波长色散的偏移值。色散补偿光学元件可以通过光纤光栅技术制成。

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