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。

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.

公开(公告)号：US5790294A

公开(公告)日：1998-08-04

申请号：US617615

申请日：1996-03-19

申请人： Yukio Horiuchi ,  Shu Yamamoto ,  Shigeyuki Akiba

发明人： Yukio Horiuchi ,  Shu Yamamoto ,  Shigeyuki Akiba

IPC分类号： H04J14/00 ,  H04B3/46 ,  H04B10/07 ,  H04B10/077 ,  H04B10/079 ,  H04B10/16 ,  H04B10/2563 ,  H04B10/29 ,  H04B10/294 ,  H04B10/297 ,  H04B10/54 ,  H04B10/548 ,  H04B10/564 ,  H04B10/572 ,  H04J14/02 ,  H04B10/02

CPC分类号： H04B10/035 ,  H04B10/07 ,  H04B10/077 ,  H04B2210/074 ,  H04B2210/077 ,  H04B2210/078

摘要： A line monitoring apparatus which features a simple configuration is capable of quickly detecting a position where a failure has occurred. A main track signal on an up-stream optical transmission path is set for a different wavelength from that on a down-stream optical transmission path, so that the wavelength of loopback signals fed back from repeaters does not overlap the wavelength of the main track signals transmitted from a transmitting terminal station. This makes it possible to separate the main track signals and the loopback signals by using dividing circuits at receiving terminal stations. In addition, the level of the separated loopback signals can be set higher than that in the past; therefore, a monitoring signal can be quickly detected in the loopback signal.

摘要翻译： 具有简单配置的线路监视装置能够快速检测发生故障的位置。 上游光传输路径上的主轨道信号被设置为与下行光传输路径上不同的波长，使得从中继器反馈的环回信号的波长不与主轨道信号的波长重叠 从发送终端发送。 这使得可以通过在接收终端站处使用分频电路来分离主轨道信号和环回信号。 另外，分离的环回信号的电平可以设置得比以前更高; 因此，可以在环回信号中快速检测出监视信号。

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。

公开(公告)号：US5877878A

公开(公告)日：1999-03-02

申请号：US757290

申请日：1996-11-27

申请人： Yukio Horiuchi ,  Shu Yamamoto ,  Shigeyuki Akiba

发明人： Yukio Horiuchi ,  Shu Yamamoto ,  Shigeyuki Akiba

IPC分类号： H04J14/00 ,  H04B10/035 ,  H04B10/07 ,  H04B10/077 ,  H04B10/2507 ,  H04B10/29 ,  H04B10/297 ,  H04B10/54 ,  H04B10/548 ,  H04B10/572 ,  H04J14/02 ,  H04B10/02

CPC分类号： H04B10/0777 ,  H04B2210/078

摘要： The purpose of the invention is to detect a surveillance signal in a shorter time without lowering the usable merit of wavelength. The transmission signal transmitting through the optical fiber transmission lines is specified as a light FDM signal multiplexed in wavelength, and the surveillance light signal is interposed in the middle of two adjacent channel slots. The surveillance light signal is produced such that the spread spectrum is applied to the surveillance carrier and thereby a light signal is modulated in intensity. The light FDM signal and surveillance light signal are turned to the facing transmission lines in the optical repeaters to be received by each terminal station, and the modulation rate of the surveillance light signal can be made deeper so that the surveillance signal can be detected in a shorter time.

摘要翻译： 本发明的目的是在更短的时间内检测监视信号，而不降低波长的可用优点。 通过光纤传输线传输的传输信号被指定为以波长复用的光FDM信号，并且监视光信号插入在两个相邻信道时隙的中间。 产生监视光信号，使得扩频被应用于监视载体，从而强度调制光信号。 光FDM信号和监视光信号转到每个终端接收的光中继器中的面向传输线，并且可以使监视光信号的调制速率更深，从而可以在 时间较短

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。

公开(公告)号：US5771255A

公开(公告)日：1998-06-23

申请号：US799119

申请日：1997-02-11

申请人： Yukio Horiuchi ,  Shu Yamamoto ,  Shigeyuki Akiba

发明人： Yukio Horiuchi ,  Shu Yamamoto ,  Shigeyuki Akiba

IPC分类号： G02F1/01 ,  G02F1/35 ,  H01S5/00 ,  H01S5/06 ,  H01S5/068 ,  H01S3/13

CPC分类号： H04B10/50593 ,  H04B10/504 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/50597 ,  H04B10/564

摘要： A laser light generator includes an adder 12 which adds an optical frequency modulation signal Sm onto a d.c. voltage for driving a laser diode 10 for continuous laser oscillation, and applies the sum signal to the laser diode 10 to drive it. An light output from the laser diode 10 is introduced to an optical intensity controller 14 that is controlled by a control signal prepared by adjusting the optical frequency modulation signal Sm both in phase and in amplitude by a phase adjusting circuit 16 and an amplitude adjusting circuit 18. The optical intensity controller 14 may be an electroabsorption modulator that changes its transmissivity in response to an output voltage of the circuit 18. Quantities of adjustment by the circuits 16 and 18 are determined so that fluctuation in transmissivity of the optical intensity controller 14 suppresses intensity fluctuation of the light output of the laser diode 10.

摘要翻译： 激光发生器包括加法器12，该加法器12将光频调制信号Sm加到直流电路上。 用于驱动用于连续激光振荡的激光二极管10的电压，并将和信号施加到激光二极管10以驱动它。 来自激光二极管10的光输出被引入光强度控制器14，该光强度控制器14由通过相位调整电路16和振幅调整电路18调整相位和幅度的光频调制信号Sm而制备的控制信号来控制 光强度控制器14可以是响应于电路18的输出电压来改变其透射率的电吸收调制器。确定电路16和18的调整量，使得光强度控制器14的透射率的波动抑制强度 激光二极管10的光输出的波动。

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：US6160649A

公开(公告)日：2000-12-12

申请号：US136720

申请日：1998-08-19

申请人： Yukio Horiuchi ,  Shu Yamamoto ,  Shigeyuki Akiba

发明人： Yukio Horiuchi ,  Shu Yamamoto ,  Shigeyuki Akiba

IPC分类号： H04J14/00 ,  H04B10/07 ,  H04B10/2507 ,  H04B10/54 ,  H04B10/548 ,  H04B17/00 ,  H04J14/02 ,  H04B10/08

CPC分类号： H04B10/07955 ,  H04B10/0775 ,  H04B10/0779 ,  H04B10/0799 ,  H04B2210/075 ,  H04B2210/078

摘要： An oscillator oscillates at a predetermined reference frequency, and a reference signal light sender generates light (reference signal light) of a specific wavelength deeply modulated by output from the oscillator. A frequency divider frequency-divides the output from the oscillator into a certain number, and outputs a tone signal of a predetermined measurement frequency. Output from the frequency divider is applied to selected one of a plurality of optical transmission signal senders via one of a plurality of switches, and is used to slightly intensity-modulate a corresponding optical transmission signal. An optical divider in an optical repeater outputs most of output light from an optical amplifier onto an optical fiber transmission line toward a terminal station, and applies small amounts of the light to a measuring circuit. The measuring circuit synchronously detects the measurement frequency component in the received light using the reference frequency obtained from the reference signal light of the specific wavelength. A modulator slightly varies the amplification gain of the other optical amplifier that amplifies the signal light travelling on the other optical fiber transmission line in response to results of measurement by the measuring circuit.

摘要翻译： 振荡器以预定的参考频率振荡，并且参考信号光发送器产生由振荡器的输出深度调制的特定波长的光（参考信号光）。 分频器将振荡器的输出分频为一定数量，并输出预定测量频率的音调信号。 来自分频器的输出经由多个开关中的一个被施加到多个光传输信号发送器中的所选择的一个，并且用于对相应的光传输信号进行轻微的调制。 光中继器中的分光器将大部分从光放大器的输出光输出到光终端上的光纤传输线，并将少量的光施加到测量电路。 测量电路使用从特定波长的参考信号光获得的参考频率同步地检测接收光中的测量频率分量。 调制器稍微改变另一个光放大器的放大增益，该放大增益响应于测量电路的测量结果而放大在另一条光纤传输线上传播的信号光。

公开(公告)号：US07142787B2

公开(公告)日：2006-11-28

申请号：US09885498

申请日：2001-06-19

申请人： Yukio Horiuchi ,  Shu Yamamoto

发明人： Yukio Horiuchi ,  Shu Yamamoto

IPC分类号： H04B10/00

CPC分类号： H04L7/0075 ,  H04B10/503 ,  H04B10/5161 ,  H04B10/5561 ,  H04J14/08

摘要： This invention discloses a method to easily extract a header from an optical packet. An optical data transmission method to transmit an optical packet composed of a header and data containing steps of generating a second clock which has a frequency equal to one integer of that of a first clock carrying the data and synchronizes with the first clock, and carrying the header information on the second clock.

摘要翻译： 本发明公开了一种从光分组容易地提取报头的方法。 一种光数据传输方法，用于发送由报头组成的光分组和包含生成第二时钟的步骤的数据，所述第二时钟具有等于携带数据的第一时钟的一个整数的频率，并与第一时钟同步，并携带 第二个时钟的头信息。