WDM OPTICAL COMMUNICATION SYSTEM
    71.
    发明申请
    WDM OPTICAL COMMUNICATION SYSTEM 审中-公开
    WDM光通信系统

    公开(公告)号:WO00060775A1

    公开(公告)日:2000-10-12

    申请号:PCT/JP2000/001659

    申请日:2000-03-17

    CPC classification number: G02B6/29376 H04B10/2513 H04B10/25253

    Abstract: The invention relates to a WDM optical communication system, which is used in an optical transmission path including a dispersion-shifted optical fiber having zero-dispersion wavelength in a 1.55 mu m band and effectively controls the waveform deterioration attributed to optical nonlinearity of signal light in a 1.58 mu m band. The WDM optical communication system includes a hybrid transmission unit having a single-mode optical fiber and a dispersion-shifted optical fiber along the path of the signal light. The single-mode optical fiber has zero-dispersion wavelength in a 1.3 mu m band, and has an effective cross-sectional area ASMF at a wavelength of 1.58 mu m. The dispersion-shifted optical fiber has zero-dispersion wavelength in a 1.55 mu m band, and has dispersion whose absolute value is greater than 0.5 ps/nm/km at a wavelength of 1.58 mu m and an effective cross-sectional area ADSF smaller than the sectional area ASMF of the single-mode optical fiber.

    Abstract translation: 本发明涉及一种WDM光通信系统,其用于包括在1.55μm带中具有零色散波长的色散位移光纤的光传输路径,并有效地控制归因于信号光的光非线性的波形劣化 一个1.58亩的乐队。 WDM光通信系统包括具有沿着信号光路径的单模光纤和色散位移光纤的混合传输单元。 单模光纤在1.3μm的频带中具有零色散波长,并且在1.58μm的波长下具有有效的横截面积ASMF。 色散位移光纤在1.55μm带中具有零色散波长,并且在1.58μm波长下具有绝对值大于0.5ps / nm / km的色散,有效截面积ADSF小于 单模光纤的截面积ASMF。

    METHOD USING PHOTONIC CRYSTALS FOR THE DISPERSION COMPENSATION OF OPTICAL SIGNALS OF DIFFERENT WAVELENGTHS WHICH ARE TRANSMITTED TOGETHER
    72.
    发明申请
    METHOD USING PHOTONIC CRYSTALS FOR THE DISPERSION COMPENSATION OF OPTICAL SIGNALS OF DIFFERENT WAVELENGTHS WHICH ARE TRANSMITTED TOGETHER 审中-公开
    色散补偿方法并传输的光信号与不同的波长意味着光子晶体

    公开(公告)号:WO00059140A1

    公开(公告)日:2000-10-05

    申请号:PCT/EP2000/002479

    申请日:2000-03-21

    Abstract: The invention relates to a cost-effective solution for compensating the dispersion of optical signals with different wavelengths. According to the invention, photonic crystals (K1-Kn) are arranged on a common optical waveguide (2). Each photonic crystal (K1-Kn) is set in such a way that it reflects or deflects the signals of one wavelength and allows the signals of other wavelengths to pass through unattenuated. The actual arrangement of the photonic crystals (K1-Kn) on the optical waveguide (2) and the actual arrangement of the deflective elements in the photonic crystal are determined according to the dispersion which is to be compensated between the individual wavelengths. The inventive solution enables high-quality photonic dispersion compensators which are approximately 1000 times shorter than conventional diffraction gratings to be set or adjusted in a fixed manner.

    Abstract translation: 本发明涉及一种低成本的解决方案的色散补偿具有不同波长的光信号。 根据本发明,设置在公共光波导光子晶体(K1-Kn)的(2)。 每个光子晶体(K1-Kn)的被调整以反映一个波长的信号,并且偏转和发送的其它波长的信号的衰减的。 在波导(2)和所述偏转元件的在光子晶体中的具体安排的光子晶体(K1-Kn)的的具体结构在此情况下定义为分散体的功能的各个波长之间进行补偿。 本发明的方案永久设置的或可控的光子的色散补偿器可以构建高品质的,其比传统的衍射光栅短约1000倍。

    AN OPTICAL DEVICE FOR DISPERSION COMPENSATION
    73.
    发明申请
    AN OPTICAL DEVICE FOR DISPERSION COMPENSATION 审中-公开
    用于分散补偿的光学装置

    公开(公告)号:WO99045420A1

    公开(公告)日:1999-09-10

    申请号:PCT/AU1999/000127

    申请日:1999-03-02

    CPC classification number: G02B6/12011 G02B6/29394 H04B10/25133 H04B2210/258

    Abstract: An optical device (2) having a number of waveguides (12), an input port (6) coupled to the waveguides (12) such that light incident on the input port (6) is split for propagation on the waveguides, and an output port (10) receiving light propagated on the waveguides (12) at a point on an output plane of incidence. The waveguides (12) induce respective delays in the propagated light to induce a wavelength dependent group delay. Delays between adjacent waveguides are chosen to be non-constant, to introduce quadratic, cubic or higher-order phase differences between different waveguides. Applications include dispersion compensation, pulse compression, and passband broadening in arrayed waveguide grating multiplexers and demultiplexers.

    Abstract translation: 一种具有多个波导(12)的光学器件(2),耦合到波导(12)的输入端口(6),使得入射到输入端口(6)上的光被分离以在波导上传播,并且输出 端口(10)接收在输入入射平面上的点处在波导(12)上传播的光。 波导(12)引起传播光中的相应延迟以引起与波长相关的组延迟。 相邻波导之间的延迟被选择为非常数,以引入不同波导之间的二次,立方或更高阶相位差。 应用包括阵列波导光栅复用器和解复用器中的色散补偿,脉冲压缩和通带展宽。

    色散估计方法及装置
    74.
    发明申请

    公开(公告)号:WO2021228093A1

    公开(公告)日:2021-11-18

    申请号:PCT/CN2021/093084

    申请日:2021-05-11

    Inventor: 张娟 易鸿 刘思明

    Abstract: 本申请提供一种色散估计方法及装置。包括:获取第一路光信号和第二路光信号,第一路光信号和第二路光信号为通过联合传输的两个信道或两个子载波传播的光信号,确定第一路光信号和第二路光信号的相对传播延时,相对传播延时为插入第一路光信号中的第一训练序列与插入第二路光信号中的第二训练序列之间的相对传播延时,第一训练序列在第一路光信号中的位置与第二训练序列在第二路光信号中的位置相同,根据第一路光信号和第二路光信号的相对传播延时与两个信道的间隔或两个子载波的间隔确定色散估计值。从而可提高色散估计的速度。

    診断装置及び診断方法
    75.
    发明申请

    公开(公告)号:WO2021181588A1

    公开(公告)日:2021-09-16

    申请号:PCT/JP2020/010680

    申请日:2020-03-12

    Abstract: 本発明は、前記課題を解決するために、OLTの収容局移設時に長延化機能を使用するか否かを正確に把握することができる診断装置及び診断方法を提供することを目的とする。本発明に係る診断装置は、光通信システムに使用される光ファイバにおける中心波長と任意のスペクトル幅を満たす許容線路距離との関係である許容線路長リストを持ち、ONU毎にスペクトルの中心波長とスペクトル幅を測定し、当該許容線路長リストに照らし合わせてONU毎の許容線路距離を得ることとした。

    CONTROLLING COMPENSATION OF CHROMATIC DISPERSION IN OPTICAL TRANSPORT NETWORKS

    公开(公告)号:WO2021073735A1

    公开(公告)日:2021-04-22

    申请号:PCT/EP2019/078124

    申请日:2019-10-16

    Abstract: A method (200) of controlling compensation of chromatic dispersion in an optical transport network. The method comprises determining (202) whether a residual dispersion, RD, of a first path (3) within the network is within a defined RD range and if the RD of the first path is outside the defined RD range the method comprises identifying (204) a first tuneable dispersion compensation module, TDCM, crossed by the first path (3), configured to apply a respective value of dispersion compensation. The method also comprises determining (206) a different value of dispersion compensation to be applied by the first TDCM to bring the RD of the first path within the defined RD range; if (208) the first TDCM is crossed by at least one other path (1, 2), checking (210) that the respective RD of said at least one other path is within a respective defined RD range for said different value of dispersion compensation; and generating (212) a control signal comprising instructions configured to set the first TDCM to apply said different value of dispersion compensation.

    基于频谱拼接的射频线性调频信号生成方法及装置

    公开(公告)号:WO2020248737A1

    公开(公告)日:2020-12-17

    申请号:PCT/CN2020/087450

    申请日:2020-04-28

    Abstract: 本发明公开了一种基于频谱拼接的射频线性调频信号生成方法。本发明将光载波转换为频率呈周期性变化的N个光脉冲连续拼接而成的多载波光信号,然后用原始射频线性调频信号对所述多载波光信号进行载波抑制单边带调制,得到光线性调频信号,最后用光线性调频信号与光载波的移频信号进行拍频即可得到带宽扩大为N倍的射频线性调频信号。本发明还公开了一种基于频谱拼接的射频线性调频信号生成装置。相比现有技术,本发明可生成带宽大幅提高的线性调频信号或双啁啾线性调频信号。

    分散補償システム、および、分散補償方法

    公开(公告)号:WO2020004215A1

    公开(公告)日:2020-01-02

    申请号:PCT/JP2019/024481

    申请日:2019-06-20

    Abstract: 【課題】分散補償量を高めつつ、運用コストを下げた分散補償システムを提供すること。 【解決手段】 コアノード1とアクセスノード2とがリングネットワークでリング網3に接続される分散補償システムとして、アクセスノード2は、遅延測定用信号をコアノード1から受信することで、コアノード1とアクセスノード2との間の遅延を測定する遅延測定部218と、測定された遅延をもとに、リング網3に向けて送信する前のバースト光信号に与える分散補償量を計算する平均分散量計算部219と、送信する前のバースト光信号の波形に計算した分散補償量を予等化する実部逆分散付与部213Iと、を有する。

    DATA COMMUNICATION CABLE ASSEMBLY INCLUDING ELECTROMAGNETIC SHIELDING FEATURES

    公开(公告)号:WO2019221846A1

    公开(公告)日:2019-11-21

    申请号:PCT/US2019/026858

    申请日:2019-04-10

    Abstract: A data communication cable assembly including a cable with wire and/or optical fiber communication mediums for transmitting data signals and/or power signals, and connectors for connecting to a pair of devices, respectively. Each of the connector includes a connector plug or receptacle configured to mate with a corresponding receptacle or plug of a device, wherein the connector plug or receptacle includes a set of electrical contacts configured to send and/or receive the data signals and/or power signals to and/or from the device; a metallic shell defining an enclosure and including first and second openings, wherein the connector plug or receptacle mate is configured to mate with the corresponding receptacle or plug of the device via the first opening, and wherein the cable extends from inside to outside of the enclosure via the second opening; and electrically-conductive filler material configured to reduce electromagnetic leakage via the first and second openings.

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