公开(公告)号：US4965858A

公开(公告)日：1990-10-23

申请号：US310628

申请日：1989-02-14

申请人： Takao Naito ,  Terumi Chikama ,  Shigeki Watanabe ,  Tetsuya Kiyonaga ,  Yoshihito Onoda ,  Hideo Kuwahara ,  Hiroshi Onaka ,  Hideyuki Miyata

发明人： Takao Naito ,  Terumi Chikama ,  Shigeki Watanabe ,  Tetsuya Kiyonaga ,  Yoshihito Onoda ,  Hideo Kuwahara ,  Hiroshi Onaka ,  Hideyuki Miyata

IPC分类号： G02F2/00 ,  H04B10/25 ,  H04B10/516 ,  H04B10/564 ,  H04B10/61

CPC分类号： H04B10/61 ,  H04B10/614 ,  H04B10/64

摘要： A polarized wave diversity optical receiver for coherent optical communication including: an optical local oscillating circuit (7) for oscillating local oscillating light; a mixing circuit (8) for mixing signal light and the local oscillating light to obtain two polarized components; a detecting circuit (9) for detecting the polarized component to output intermediate frequency signals (e.sub.S and e.sub.P); and a frequency control circuit (11) for controlling, in accordance with the intermediate frequency signals (e.sub.S and e.sub.P), the oscillating frequency of the optical local oscillating circuit (7). To ensure that the intermediate frequency does not disappear, the frequency control circuit (11) outputs a combined signal of a sum and a difference of the intermediate frequency signals (e.sub.S and e.sub.P).

公开(公告)号：US06583900B2

公开(公告)日：2003-06-24

申请号：US10032094

申请日：2001-12-31

申请人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka ,  Yutaka Kai ,  Tadao Nakazawa ,  Terumi Chikama

发明人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka ,  Yutaka Kai ,  Tadao Nakazawa ,  Terumi Chikama

IPC分类号： H04B1020

CPC分类号： H04J14/0297 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0219 ,  H04J14/0283 ,  H04J14/0289 ,  H04J14/0291 ,  H04J14/0294

摘要： In an OADM system, an OADM device includes an AOTF. The AOTF can select an optional wavelength by changing the frequency of an RF signal to be applied. An optical signal having a specified wavelength can be dropped from a wavelength-multiplexed optical signal input from an input terminal, or a wavelength-multiplexed optical signal input from an add port can be multiplexed with a through optical signal. However, considering the increase in coherent cross talk, the AOTF should be exclusively used for dropping in an actual device configuration. Otherwise, a drop optical signal is branched by an optical coupler with the wavelength selected by a tributary station. Thus, the wavelength selected by the tributary station can be extracted by the AOTF from the through optical signal.

公开(公告)号：US06351323B1

公开(公告)日：2002-02-26

申请号：US09080399

申请日：1998-05-18

申请人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka ,  Yutaka Kai ,  Tadao Nakazawa ,  Terumi Chikama

发明人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka ,  Yutaka Kai ,  Tadao Nakazawa ,  Terumi Chikama

IPC分类号： H04B1004

CPC分类号： H04J14/0297 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0219 ,  H04J14/0283 ,  H04J14/0289 ,  H04J14/0291 ,  H04J14/0294

摘要： In an OADM system, an OADM device includes an AOTF. The AOTF can select an optional wavelength by changing the frequency of an RF signal to be applied. An optical signal having a specified wavelength can be dropped from a wavelength-multiplexed optical signal input from an input terminal, or a wavelength-multiplexed optical signal input from an add port can be multiplexed with a through optical signal. However, considering the increase in coherent cross talk, the AOTF should be exclusively used for dropping in an actual device configuration. Otherwise, a drop optical signal is branched by an optical coupler with the wavelength selected by a tributary station. Thus, the wavelength selected by the tributary station can be extracted by the AOTF from the through optical signal.

摘要翻译： 在OADM系统中，OADM设备包括AOTF。 AOTF可以通过改变要施加的RF信号的频率来选择可选的波长。 具有指定波长的光信号可以从输入端输入的波分复用光信号中丢弃，或从加入口输入的波分复用光信号可以与通过光信号复用。 然而，考虑到相干串扰的增加，AOTF应该专门用于实际的设备配置。 否则，分支光信号由具有由分支站选择的波长的光耦合器分支。 因此，辅助站选择的波长可以由AOTF从通过光信号提取。

公开(公告)号：US06545784B2

公开(公告)日：2003-04-08

申请号：US09905066

申请日：2001-07-16

申请人： Kazue Okazaki ,  Hiroshi Onaka ,  Hideyuki Miyata ,  Yutaka Kai ,  Terumi Chikama

发明人： Kazue Okazaki ,  Hiroshi Onaka ,  Hideyuki Miyata ,  Yutaka Kai ,  Terumi Chikama

IPC分类号： H04J1402

CPC分类号： H04Q11/0005 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0221 ,  H04M1/274558 ,  H04M1/274583 ,  H04M2250/60 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/0024 ,  H04Q2011/0045 ,  H04Q2011/0049

摘要： M wavelength separating sections receive multiplexed optical signals each having N kinds of wavelengths different. Each of the multiplexed optical signals are separated into N optical signals. M relays conduct optical reproduction and relay to convert each of the N optical signals into electric signals and then produce optical signals modulated with desired optical wavelengths. A refill section mutually refills M sets of the reproduced and relayed optical signals. A focusing section focuses the M sets of optical signals refilled in the refill section. A light source supplies input lights having desired wavelengths, which lights are modulated in the relays. The light source includes N light sources outputting N kinds of optical wavelengths. A multiplexer/brancher multiplexes the lights from the N light sources to produce a multiplexed light and branches the multiplexed light into M×N distributed lights. M wavelength filters distribuitively receive N distributed lights of the M×N distributed lights.

摘要翻译： M个波长分离部分接收各自具有不同N种波长的复用光信号。 复用光信号中的每一个被分离为N个光信号。 M继电器进行光学再现和继电以将N个光信号中的每一个转换为电信号，然后产生用期望的光波长调制的光信号。 重新填充部分相互重新填充M组再现和中继的光信号。 聚焦部分将重新填充的M组光信号聚焦在再填充部分中。 光源提供具有期望波长的输入光，哪些光在继电器中被调制。 光源包括输出N种光波长的N个光源。 多路复用器/分路器复用来自N个光源的光，以产生多路复用的光，并将多路复用的光分支到MxN分布式光。 M波长滤波器分布式接收MxN分布式灯的N个分布式灯。

公开(公告)号：US06366376B1

公开(公告)日：2002-04-02

申请号：US09223563

申请日：1998-12-31

申请人： Hideyuki Miyata ,  Hiroshi Onaka ,  Terumi Chikama

发明人： Hideyuki Miyata ,  Hiroshi Onaka ,  Terumi Chikama

IPC分类号： H04J1402

CPC分类号： H04B10/2563 ,  H04J14/0224

摘要： An optical transmitting device which combines a plurality of signal lights, each having a different, corresponding, frequency, into a wavelength division multiplexed signal light. The frequencies are spaced apart from each other in a manner with eliminates the effects of four-wave mixing (FWM). More specifically, the difference in frequencies of any pair-combination of the signal lights is different from the difference in frequencies between any other pair-combination of the signal lights. Moreover, the plurality of signal lights include n signal lights having respectively corresponding frequencies f1 through fn arranged in order from f1 to fn along a frequency spectrum, where frequencies f1 through fn−1 have respectively corresponding integer spacing coefficients m1 through mn−1, and frequencies fi and fi+1 are separated by mi·&Dgr;fS−F, where i=1 to (n−1) and &Dgr;fS−F is a unit of spacing between frequencies. m1 through mn−1 are all different from each other. In addition, m1 through mn−1 and the sum of any consecutive (n−2) spacing coefficients m1 through mn−1 should all be different from each other. The sum of m1 through mn−1 can be minimized to minimize required bandwidth.

摘要翻译： 一种光发射装置，其将具有不同相应频率的多个信号光组合成波分复用信号光。 频率彼此间隔开，消除了四波混频（FWM）的影响。 更具体地，信号光的任何组合的频率差异与信号光的任何其它对组合之间的频率差异不同。 此外，多个信号光包括n个信号光，其中频率f1至fn-1分别具有对应的整数间隔系数m1至mn-1，分别具有分别对应的频率f1至fn，其频率f1至fn按频率顺序排列，并且 频率fi和fi + 1由mi.DELTAfS-F分开，其中i = 1到（n-1），DELTAfS-F是频率之间的间隔单位。 m1到mn-1都是不同的。 此外，m1至mn-1以及任何连续（n-2）个间隔系数m1至mn-1的总和应该彼此不同。 可以将m1至mn-1的总和最小化以最小化所需的带宽。

公开(公告)号：US06285479B1

公开(公告)日：2001-09-04

申请号：US09050105

申请日：1998-03-30

申请人： Kazue Okazaki ,  Hiroshi Onaka ,  Hideyuki Miyata ,  Yutaka Kai ,  Terumi Chikama

发明人： Kazue Okazaki ,  Hiroshi Onaka ,  Hideyuki Miyata ,  Yutaka Kai ,  Terumi Chikama

IPC分类号： H04J1402

CPC分类号： H04Q11/0005 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0221 ,  H04M1/274558 ,  H04M1/274583 ,  H04M2250/60 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/0024 ,  H04Q2011/0045 ,  H04Q2011/0049

摘要： The present invention relates to an optical cross connect unit comprising M wavelength separating sections for receiving multiplexed optical signals each having N kinds of wavelengths different from each other through M optical fibers, respectively, and for wavelength-separating each of the multiplexed optical signals into N optical signals, M optical reproduction relay sections each for conducting an optical reproduction and relay in a manner of making a conversion of each of the N optical signals, wavelength-separated in each of the wavelength separating sections, into an electric signal and then modulating it with a desired optical wavelength, a refill section for mutually refilling M sets of optical signals optically reproduced and relayed in the optical reproduction relay sections, a focusing section for focusing the M sets of optical signals refilled in the refill section, and a light source unit for supplying input lights having desired wavelengths to be modulated in the M optical reproduction relay sections. The light source unit includes N light sources for outputting lights having the N kinds of optical wavelengths, a multiplexing and branching section for multiplexing the lights from the N light sources to produce a multiplexed light having N kinds of optical wavelength components and further for branching the multiplexed light into M×N lights to output them as multiplexed and distributed lights, M wavelength filter sections for distributively receiving N multiplexed and distributed lights of the M×N multiplexed and distributed lights branched in the multiplexing and branching section to output N lights due to the passage of only arbitrary wavelengths of the N kinds of optical wavelengths, and a wavelength setting control section for setting optical wavelengths, which pass through the wavelength filter sections, so that they differ from each other. The N lights from each of the M wavelength filter sections are supplied as the input lights. In the case that many light sources are necessary for the modulation processing by modulators or the like, this optical cross connect unit is also suitable because of using given wavelengths from a small number of light sources for a lot of modulation processing.

公开(公告)号：US5471336A

公开(公告)日：1995-11-28

申请号：US928101

申请日：1992-08-11

申请人： Hiroshi Onaka ,  Hideyuki Miyata ,  Takao Naito

发明人： Hiroshi Onaka ,  Hideyuki Miyata ,  Takao Naito

IPC分类号： H04B10/516 ,  H04B10/07 ,  H04B10/61 ,  H04B10/64 ,  H04N5/50

CPC分类号： H04B10/61 ,  H04B10/64

摘要： A cold start control system and method for use in a coherent lightwave communications system, in which received signal light is mixed with local light to obtain an IF signal. In the cold start control, the frequency of the local light and/or the frequency of the signal light is swept in the state of the system capable of detecting the IF signal and discrimination between the real/image states and relative correction are made, and then, an AFC operation is started.

摘要翻译： 一种在相干光波通信系统中使用的冷启动控制系统和方法，其中接收的信号光与本地光混合以获得IF信号。 在冷启动控制中，在能够检测IF信号的系统的状态下，本地光的频率和/或信号光的频率被扫描，并且进行实/图像状态之间的鉴别和相对校正，以及 那么AFC操作就开始了。

公开(公告)号：US07006771B1

公开(公告)日：2006-02-28

申请号：US09495715

申请日：2000-02-01

申请人： Hideyuki Miyata ,  Hiroshi Onaka

发明人： Hideyuki Miyata ,  Hiroshi Onaka

IPC分类号： H04B10/04

CPC分类号： H04B10/50575 ,  G02F2203/20 ,  H04B10/50595 ,  H04B10/572 ,  H04B10/58 ,  H04J14/0201 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0276 ,  H04J14/0283

摘要： The present invention relates to an optical communication apparatus for detecting the intensity of light in an optical modulator or the intensity of a modulation signal and for controlling the operating point of the optical modulator based on the result of detection. In the optical communication apparatus having such a configuration, the operating point of the optical modulator can be kept stable even when the input light or the modulation signal is temporarily non-existent in the optical communication apparatus.

公开(公告)号：US20050226550A1

公开(公告)日：2005-10-13

申请号：US11144607

申请日：2005-06-06

申请人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimuto

发明人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimuto

IPC分类号： G02B6/30 ,  G02B5/30 ,  G02B6/12 ,  G02B6/122 ,  G02F1/01 ,  G02F1/11 ,  G02F1/125 ,  G02F1/31 ,  H04J14/02 ,  G02B6/26

CPC分类号： H04J14/0221 ,  G02F1/0121 ,  G02F2203/585 ,  H04B10/0795 ,  H04B10/07953 ,  H04B10/0797

摘要： The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To this end, the control apparatus of the present invention comprises an optical coupler that branches a part of a main signal light input to the optical device, a monitoring optical device that operates in accordance with a control parameter same as for the optical device, and processes the monitor light branched by the optical coupler, a light receiver that receives the monitor light processed by the monitoring optical device, a detecting circuit that detects a relationship between the monitor light received by the light receiver, and the wavelength or optical power of the signal light, and a controlling circuit that adjust the control parameter for the optical device to control the operation setting, based on the relationship detected by the detecting circuit, so that characteristics of the optical device become capable of realizing the relationship to be set corresponding to the signal light.

公开(公告)号：US06417945B2

公开(公告)日：2002-07-09

申请号：US09799639

申请日：2001-03-07

申请人： George Ishikawa ,  Hideyuki Miyata ,  Hiroshi Onaka ,  Motoyoshi Sekiya ,  Kazue Okazaki

发明人： George Ishikawa ,  Hideyuki Miyata ,  Hiroshi Onaka ,  Motoyoshi Sekiya ,  Kazue Okazaki

IPC分类号： H04J1402

CPC分类号： G02B6/29377 ,  G02B6/4215 ,  H04B10/25133 ,  H04B10/2525 ,  H04B10/25253 ,  H04B10/255 ,  H04B10/2563 ,  H04B2210/252 ,  H04B2210/254 ,  H04B2210/258 ,  H04J14/02 ,  H04J14/0224

摘要： An optical transmission system in which a wavelength-division-multplexed (WDM) optical signal including a plurality of optical signals having different wavelengths is demultiplexed into first optical signals and second optical signals. The second optical signals have wavelengths longer than wavelengths of the first optical signals. A first dispersion compensator compensates dispersion of the first optical signals. A second dispersion compensator compensates dispersion of the second optical signals. The dispersion compensated first and second optical signals are then multiplexed together.

摘要翻译： 一种光传输系统，其中包括具有不同波长的多个光信号的波分复用（WDM）光信号被解复用为第一光信号和第二光信号。 第二光信号具有比第一光信号的波长长的波长。 第一色散补偿器补偿第一光信号的色散。 第二色散补偿器补偿第二光信号的色散。 然后将色散补偿的第一和第二光信号复用在一起。