利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

106 条记录 (耗时 0.029 秒)

    Optical cross connect unit, optical add-drop multiplexer, light source unit, and adding unit
    72.
    发明授权
    Optical cross connect unit, optical add-drop multiplexer, light source unit, and adding unit 失效
    光交叉单元，光分插复用器，光源单元和增加单元

    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。

    Optical transmitting device using wavelength division multiplexing to transmit signal lights having frequencies arranged to eliminate effects of four-wave mixing (FWM)
    73.
    发明授权
    Optical transmitting device using wavelength division multiplexing to transmit signal lights having frequencies arranged to eliminate effects of four-wave mixing (FWM) 有权
    使用波分复用技术的光发射装置，用于发射具有排除以消除四波混频（FWM）影响的频率的信号光，

    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。

    Optical cross connect unit, optical add-drop multiplexer, light source unit, and adding unit
    74.
    发明授权
    Optical cross connect unit, optical add-drop multiplexer, light source unit, and adding unit 失效

    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.

    Optical wavelength multiplex transmission method and optical dispersion compensation method
    75.
    发明授权
    Optical wavelength multiplex transmission method and optical dispersion compensation method 失效
    光波长复用传输方法和光色散补偿方法

    公开(公告)号：US06243176B1

    公开(公告)日：2001-06-05

    申请号：US08917292

    申请日：1997-08-25

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

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

    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： The invention provides an optical wavelength multiplex transmission method wherein a band in the proximity of a zero dispersion wavelength of an optical fiber is used and optical signals are disposed at efficient channel spacings taking an influence of the band, the wavelength dispersion and the four wave mixing into consideration to realize an optical communication system of an increased capacity which is not influenced by crosstalk by FWM. When optical signals of a plurality of channels having different wavelengths are to be multiplexed and transmitted using an optical fiber, a four wave mixing suppressing guard band of a predetermined bandwidth including the zero-dispersion wavelength &lgr;&thgr; of the optical fiber is set, and signal light waves of the plurality of channels to be multiplexed are arranged on one of the shorter wavelength side and the longer wavelength side outside the guard band.

    摘要翻译： 本发明提供一种光波长多路复用传输方法，其中使用光纤零色散波长附近的频带，并且将光信号设置在影响频带，波长色散和四波混频的有效信道间隔处 考虑到实现不受FWM串扰影响的增加容量的光通信系统。 当使用光纤复用和发送具有不同波长的多个信道的光信号时，设置包括光纤的零色散波长的预定带宽的四波混频抑制保护带，并且信号光 要复用的多个信道的波被布置在保护带外部的较短波长侧和较长波长侧中的一个上。

    Tunable optical filter having beam splitter and movable film filter
    77.
    发明授权
    Tunable optical filter having beam splitter and movable film filter 失效
    可调光滤波器，具有分束器和可移动薄膜滤波器

    公开(公告)号：US5646399A

    公开(公告)日：1997-07-08

    申请号：US593211

    申请日：1996-01-29

    申请人： Nobuhiro Fukushima ,  Hiroshi Onaka

    发明人： Nobuhiro Fukushima ,  Hiroshi Onaka

    IPC分类号： G02B5/20 ,  G02B6/28 ,  G02B6/34 ,  G02B7/00 ,  G02B26/00 ,  G02B27/28 ,  H01J40/14

    CPC分类号： G02B6/4246 ,  G02B26/007 ,  G02B27/283 ,  G02B5/20 ,  G02B5/203 ,  G02B6/2713 ,  G02B6/2848 ,  G02B6/29311 ,  G02B6/29358 ,  G02B6/29361 ,  G02B6/29395 ,  G01J2003/1243 ,  G02B6/2786

    摘要： A tunable filter module which can automatically make the center wavelength in the passband coincident with the center wavelength of a signal light beam according to variations in wavelength of the signal light beam. The tunable filter module includes a beam splitting mechanism for splitting an incident signal light beam into a first beam undeviated, a second beam deflected to one side of the first beam; and a third beam deflected to another side of the first beam, and a multilayer film filter located so as to transmit the first, second, and third beams. A first photodetector is located so as to detect the second beam, and a second photodetector is located so as to detect the third beam. A comparator is connected to the first and second photodetectors to compare outputs from the first and second photodetectors and output a differential signal indicative of the difference between these outputs. A tilt angle of the multilayer film filter is changed according to the differential signal so that the center wavelength in the passband of the multilayer film filter comes into coincidence with the center wavelength of the signal light beam.

    摘要翻译： 根据信号光束的波长变化，可以自动使通带中的中心波长与信号光束的中心波长一致的可调谐滤波器模块。 可调谐滤波器模块包括分束机构，用于将入射信号光束分解成未被发射的第一光束，偏转到第一光束一侧的第二光束; 以及偏转到所述第一光束的另一侧的第三光束，以及多个膜滤光器，所述多层膜滤光器被定位成透射所述第一，第二和第三光束。 第一光电检测器被定位成检测第二光束，并且第二光电检测器被定位成检测第三光束。 比较器连接到第一和第二光电检测器以比较来自第一和第二光电检测器的输出，并输出指示这些输出之间的差的差分信号。 多层膜滤光器的倾斜角度根据差分信号而改变，使得多层膜滤光片的通带中的中心波长与信号光束的中心波长一致。

    Cold start control system and method for use in coherent lightwave communications system
    78.
    发明授权
    Cold start control system and method for use in coherent lightwave communications system 失效
    冷启动控制系统及其在相干光波通信系统中的应用

    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。