公开(公告)号：US08320771B2

公开(公告)日：2012-11-27

申请号：US12812367

申请日：2008-01-22

申请人： Tsuyoshi Yoshida ,  Toshiyuki Tokura ,  Takashi Sugihara ,  Katsuhiro Shimizu ,  Aritomo Uemura ,  Hiroki Shima ,  Kiyoshi Onohara

发明人： Tsuyoshi Yoshida ,  Toshiyuki Tokura ,  Takashi Sugihara ,  Katsuhiro Shimizu ,  Aritomo Uemura ,  Hiroki Shima ,  Kiyoshi Onohara

IPC分类号： H04B10/00

CPC分类号： H04J14/0221

摘要： A repeater includes a variable optical attenuating unit that collectively attenuates WDM optical signal input, an optical-attenuation adjusting unit that adjusts attenuation in the variable optical attenuating unit, and an optical amplifying unit that collectively amplifies and outputs the WDM optical signal collectively attenuated, to a downstream side. An optical-attenuation adjusting unit includes an input level detector; an output level detector; an output-level transmitting unit that receives information of a signal level of WDM optical signal output by a repeater at an upstream side and transmits information of a signal level of the WDM optical signal detected by the output level detector to a repeater at a downstream side; and an attenuation amount controller that controls the variable optical attenuating unit by calculating an attenuation amount thereof based on information of a signal level detected by the input level detector and a signal level received by the output-level transmitting unit.

摘要翻译： 中继器包括共同衰减WDM光信号输入的可变光衰减单元，调整可变光衰减单元中的衰减的光衰减调整单元和共同放大并输出共同衰减的WDM光信号的光放大单元， 下游侧。 光衰减调整单元包括输入电平检测器; 输出电平检测器; 输出级发送单元，其接收由上游侧的中继器输出的WDM光信号的信号电平的信息，并将由输出电平检测器检测出的WDM光信号的信号电平的信息发送到下游侧的中继器 ; 以及衰减量控制器，其通过基于由输入电平检测器检测到的信号电平的信息和由输出电平发送单元接收的信号电平来计算其衰减量来控制可变光衰减单元。

公开(公告)号：US20100284694A1

公开(公告)日：2010-11-11

申请号：US12812367

申请日：2008-01-22

申请人： Tsuyoshi Yoshida ,  Toshiyuki Tokura ,  Takashi Sugihara ,  Katsuhiro Shimizu ,  Aritomo Uemura ,  Hiroki Shima ,  Kiyoshi Onohara

发明人： Tsuyoshi Yoshida ,  Toshiyuki Tokura ,  Takashi Sugihara ,  Katsuhiro Shimizu ,  Aritomo Uemura ,  Hiroki Shima ,  Kiyoshi Onohara

IPC分类号： H04J14/02

CPC分类号： H04J14/0221

摘要： A repeater includes a variable optical attenuating unit that collectively attenuates WDM optical signal input, an optical-attenuation adjusting unit that adjusts attenuation in the variable optical attenuating unit, and an optical amplifying unit that collectively amplifies and outputs the WDM optical signal collectively attenuated, to a downstream side. An optical-attenuation adjusting unit includes an input level detector; an output level detector; an output-level transmitting unit that receives information of a signal level of WDM optical signal output by a repeater at an upstream side and transmits information of a signal level of the WDM optical signal detected by the output level detector to a repeater at a downstream side; and an attenuation amount controller that controls the variable optical attenuating unit by calculating an attenuation amount thereof based on information of a signal level detected by the input level detector and a signal level received by the output-level transmitting unit.

摘要翻译： 中继器包括共同衰减WDM光信号输入的可变光衰减单元，调整可变光衰减单元中的衰减的光衰减调整单元和共同放大并输出共同衰减的WDM光信号的光放大单元， 下游侧。 光衰减调整单元包括输入电平检测器; 输出电平检测器; 输出级发送单元，其接收由上游侧的中继器输出的WDM光信号的信号电平的信息，并将由输出电平检测器检测出的WDM光信号的信号电平的信息发送到下游侧的中继器 ; 以及衰减量控制器，其通过基于由输入电平检测器检测到的信号电平的信息和由输出电平发送单元接收的信号电平来计算其衰减量来控制可变光衰减单元。

公开(公告)号：US6028695A

公开(公告)日：2000-02-22

申请号：US124993

申请日：1998-07-30

申请人： Aritomo Uemura ,  Takashi Mizuochi ,  Katsuhiro Shimizu ,  Kiwami Matsushita ,  Tadayoshi Kitayama ,  Masatoshi Suzuki ,  Hidenori Taga ,  Shu Yamamoto

发明人： Aritomo Uemura ,  Takashi Mizuochi ,  Katsuhiro Shimizu ,  Kiwami Matsushita ,  Tadayoshi Kitayama ,  Masatoshi Suzuki ,  Hidenori Taga ,  Shu Yamamoto

IPC分类号： G02F1/03 ,  H04B10/07 ,  H04B10/516 ,  H04B10/54 ,  H04B10/548 ,  H04B10/58 ,  H04B10/61 ,  G02F1/035 ,  G02F1/055

CPC分类号： G02F1/0327 ,  G02F2203/25

摘要： When an intensity modulating operation and a phase modulating operation are carried out by employing a 2-electrode MachZehnder type optical modulator preferably a LN-MZ type optical modulator, a drive signal of this 2-electrode LN-MZ type optical modulator is produced from an intensity modulation signal and a phase modulation signal with a low loss and a simple arrangement. A optical modulating apparatus includes a splitter/combiner structured to split an intensity modulation signal inputted into a first input terminal into a first electric signal having an in-phase relationship with that of the intensity modulation signal and second electric signal having an inverse phase relationship therewith, split a phase modulation signal inputted into a second input terminal into a third electric signal having an in-phase relationship with that of the phase modulation signal an also a fourth electric signal having an in-phase relationship therewith, combine the first electric signal with the fourth electric signal to thereby output a first combined signal, and combine the second electric signal with the third electric signal to thereby output a second combined signal; and an optical modulating means structured to split a light carrier wave entered from a light source into two light carrier waves, and to optically modulate the two sets of the split light carrier waves by using the first combined signal and the second combined signal derived from the splitter/combiner, and combine the two phase-modulated above said light carrier waves to output an optical modulation signal.

摘要翻译： 当通过使用优选为LN-MZ型光调制器的2电极MachZehnder型光学调制器进行强度调制操作和相位调制操作时，该2电极LN-MZ型光调制器的驱动信号由 强度调制信号和具有低损耗和简单布置的相位调制信号。 光调制装置包括：分离器/组合器，被构造成将输入到第一输入端的强度调制信号分成与强度调制信号的同相关系的第一电信号和与其相反的相位关系的第二电信号 将输入到第二输入端子的相位调制信号分别成为与相位调制信号同相的同步关系的第三电信号，以及与其同相关系的第四电信号，将第一电信号与 第四电信号，从而输出第一组合信号，并将第二电信号与第三电信号组合，从而输出第二组合信号; 以及光调制装置，被构造成将从光源进入的光载波分成两个光载波，并且通过使用从第二组合信号导出的第一组合信号和第二组合信号对两组分裂光载波进行光学调制 分离器/组合器，并且组合在所述轻载波上的两个相位调制以输出光调制信号。

公开(公告)号：US06519381B2

公开(公告)日：2003-02-11

申请号：US09836179

申请日：2001-04-18

申请人： Tatsuo Hatta ,  Atsushi Sugitatsu ,  Takeshi Saito ,  Aritomo Uemura ,  Jun Fujita

发明人： Tatsuo Hatta ,  Atsushi Sugitatsu ,  Takeshi Saito ,  Aritomo Uemura ,  Jun Fujita

IPC分类号： G02B626

CPC分类号： G02B6/3502 ,  G02B6/3546 ,  G02B6/3572 ,  G02B6/3574 ,  G02B6/3578 ,  G02B6/3596

摘要： An optical switch includes a polymer optical waveguide that is a plate material basically made of polymer and a drive element. The plate material has optical waveguides that extend linearly within the plate material and a cut provided such that it traverses the optical waveguides. The drive element selects a path of light by reducing and increasing a gap of the cut.

公开(公告)号：US06434288B1

公开(公告)日：2002-08-13

申请号：US09530448

申请日：2000-06-13

申请人： Aritomo Uemura ,  Hiroshi Ichibangase ,  Takashi Mizuochi ,  Tadayoshi Kitayama ,  Shu Yamamoto ,  Tetsuya Miyazaki ,  Takatomi Kabashima ,  Naoki Kobayashi

发明人： Aritomo Uemura ,  Hiroshi Ichibangase ,  Takashi Mizuochi ,  Tadayoshi Kitayama ,  Shu Yamamoto ,  Tetsuya Miyazaki ,  Takatomi Kabashima ,  Naoki Kobayashi

IPC分类号： G02B626

CPC分类号： H04J14/0297 ,  H04J14/0283 ,  H04J14/0291 ,  H04J14/0294 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0024 ,  H04Q2011/0043 ,  H04Q2011/0081 ,  H04Q2011/0092

摘要： An optical switching system is implemented by providing a transmitting section with a preparatory transmitted optical signal selector and a working transmitted optical signal splitter, which are each implemented by a 1×2 optical space switch, and by providing a receiving section with a receiving optical switch which is implemented by a 2×2 optical space switch, and with a preparatory receiving optical gate which is implemented by a 1×2 optical space switch. This makes it possible to switch between the working system and preparatory system without employing any 4×4 optical space switch, thereby implementing a practical optical switching system without causing such problems as communication interruption during maintenance or impairment of transmission path working efficiency.

摘要翻译： 光交换系统是通过提供一个具有准备发送光信号选择器和工作传输光信号分离器的发射部分，每个发射部分由1x2光学空间开关实现，并且通过向接收部分提供接收光开关，该接收光开关是 由2x2光学空间开关实现，并且具有由1x2光学空间开关实现的准备接收光栅。 这使得可以在不使用任何4×4光学空间开关的情况下在工作系统和预备系统之间切换，从而实现实用的光交换系统，而不会导致维护期间的通信中断或传输路径工作效率的损害等问题。

公开(公告)号：US6094293A

公开(公告)日：2000-07-25

申请号：US358807

申请日：1999-07-22

申请人： Yoshinori Yokoyama ,  Munehisa Takeda ,  Hitoshi Ota ,  Aritomo Uemura ,  Tadayoshi Kitayama

发明人： Yoshinori Yokoyama ,  Munehisa Takeda ,  Hitoshi Ota ,  Aritomo Uemura ,  Tadayoshi Kitayama

IPC分类号： G02B26/08 ,  B81B5/00 ,  G02B6/35 ,  G02F1/09

CPC分类号： G02B6/3572 ,  G02B6/3512 ,  G02B6/352 ,  G02B6/3546 ,  G02B6/3548

摘要： An optical switch includes a light emitter for emitting light and light receivers. A reflector is used for changing a path of light emitted from the light emitter. The reflector is held by a permanent magnet having first and second magnetic poles of opposite polarities. A supporting member is provided for the reflector and the first permanent magnet so that the reflector and the first permanent magnet can move between a first position and a second position. In the first position, the reflector and the first permanent magnet interact so the emitted light travels into one light receiver of the light receivers. On the other hand, in the second position, the reflector and the first permanent magnet interact so the emitted light travels into another of the light receivers. The switch further includes an electromagnet for generating first and second magnetic fields selectively for moving the reflector and the first permanent magnet between the first and second positions.

摘要翻译： 光开关包括用于发射光和光接收器的光发射器。 反射器用于改变从光发射器发射的光的路径。 反射器由具有相反极性的第一和第二磁极的永磁体保持。 为反射器和第一永磁体提供支撑构件，使得反射器和第一永磁体能够在第一位置和第二位置之间移动。 在第一位置，反射器和第一永久磁铁相互作用，使得发射的光传播到光接收器的一个光接收器中。 另一方面，在第二位置，反射器和第一永磁体相互作用，使得发射的光传播到另一个光接收器中。 开关还包括用于产生第一和第二磁场的电磁体，用于在第一和第二位置之间选择性地移动反射器和第一永磁体。

公开(公告)号：US07340182B2

公开(公告)日：2008-03-04

申请号：US10471732

申请日：2002-03-14

申请人： Aritomo Uemura ,  Seiji Kozaki ,  Kazuo Kubo ,  Hiroshi Ichibangase

发明人： Aritomo Uemura ,  Seiji Kozaki ,  Kazuo Kubo ,  Hiroshi Ichibangase

IPC分类号： H04B10/12

CPC分类号： H04L25/4923 ,  H04J3/047 ,  H04J3/0685

摘要： A multiplexer includes an encoder. The encoder includes: flip-flop circuits that output two signals having a transmission rate of B/2 at a frequency of B/2, while holding signals of each signal; an adder that adds the respective signals output from the flip-flop circuits and outputs the added signal; and a delay unit that delays the signal output from the flip-flop circuit by the time of 1/B, with respect to the signal output from the flip-flop circuit, and outputs the signal delayed to the adder.

摘要翻译： 复用器包括编码器。 编码器包括：在保持每个信号的信号的同时，以B / 2的频率输出具有B / 2的传输速率的两个信号的触发器电路; 加法器，其将从触发器电路输出的各个信号相加并输出相加的信号; 以及延迟单元，相对于从触发器电路输出的信号，将从触发器电路输出的信号延迟1 / B的时间，并将延迟的信号输出到加法器。

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。

公开(公告)号：US5319485A

公开(公告)日：1994-06-07

申请号：US878487

申请日：1992-05-05

申请人： Tadahiko Yasui ,  Aritomo Uemura

发明人： Tadahiko Yasui ,  Aritomo Uemura

IPC分类号： H04J14/00 ,  H04B10/077 ,  H04B10/27 ,  H04J14/02 ,  H04Q11/00

CPC分类号： H04Q11/0001 ,  H04J14/0227 ,  H04J14/0282

摘要： An optical communication system comprising a plurality of optical signal communication paths, and a plurality of terminals coupled to the plurality of communication paths. A connection request is made by a calling terminal to a called terminal with an optical signal at a control wavelength via the communication path. A wavelength control unit monitors the communication paths and in response to the connection request signal selects an optical signal wavelength to be used by the terminals, out of any unused wavelengths on the communication paths. Further, the wavelength control unit informs the calling and called terminals of the selected wavelength via a wavelength information optical signal at the control wavelength. The calling and called terminals, responsive to the wavelength information signal, set their transmitting and receiving wavelength to the selected unused wavelength.

摘要翻译： 一种光通信系统，包括多个光信号通信路径，以及耦合到所述多个通信路径的多个终端。 呼叫终端通过通信路径通过具有控制波长的光信号向被叫终端进行连接请求。 波长控制单元监视通信路径，并且响应于连接请求信号，在通信路径上的任何未使用的波长中选择要被终端使用的光信号波长。 此外，波长控制单元通过控制波长的波长信息光信号通知所选择的波长的主叫和被叫终端。 响应于波长信息信号的呼叫和被叫终端将其发射和接收波长设置为所选择的未使用波长。

公开(公告)号：US06801720B1

公开(公告)日：2004-10-05

申请号：US09559644

申请日：2000-04-28

申请人： Takashi Mizuochi ,  Yojiro Osaki ,  Aritomo Uemura ,  Hiroshi Ichibangase ,  Kiwami Matsushita ,  Tadayoshi Kitayama ,  Shu Yamamoto ,  Tetsuya Miyazaki ,  Takatomi Kabashima ,  Naoki Kobayashi

发明人： Takashi Mizuochi ,  Yojiro Osaki ,  Aritomo Uemura ,  Hiroshi Ichibangase ,  Kiwami Matsushita ,  Tadayoshi Kitayama ,  Shu Yamamoto ,  Tetsuya Miyazaki ,  Takatomi Kabashima ,  Naoki Kobayashi

IPC分类号： H04B1016

CPC分类号： H04L1/20 ,  H04B10/0775 ,  H04B2210/071 ,  H04B2210/072 ,  H04B2210/078 ,  H04J3/14 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0245 ,  H04J14/0249 ,  H04J14/0283 ,  H04J2203/0057

摘要： The present invention has an object to obtain an optical signal quality supervisory device that supervises the quality of an optical signal simply, efficiently and with high accuracy without inviting an increase in cost, an increase in circuit scale and increase in power consumption. The bit rate of the optical supervisory channel is made lower than the bit rate of the optical main channel that is transmitted over an optical communication system, but the reception electric band width of a receiver that receives the optical supervisory channel is made equal to or wider than the reception electric band width of a receiver that receives the optical main channel. Also, the optical supervisory channel is made up of an SOH (section over head) frame to detect an error of the BIP (bit interleaved parity) byte of SOH, thereby supervising the quality of the optical communication system, in particular, the light wave network.

摘要翻译： 本发明的目的是获得一种光信号质量监控装置，其能够简单，有效且高精度地监视光信号的质量，而不会增加成本，增加电路规模和增加功耗。 使光监视信道的比特率低于通过光通信系统发送的光主干的比特率，但接收光监控信道的接收机的接收电带宽度等于或大于 比接收光学主通道的接收机的接收电带宽度大。 此外，光监控信道由SOH（部分头）帧构成，以检测SOH的BIP（比特交织奇偶校验）字节的错误，从而监督光通信系统的质量，特别是光波 网络。