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    • 5. 发明申请
    • EMULATOR FOR SECOND ORDER POLARIZATION MODE DISPERSION (PMD)
    • 模拟器PMD ORDER
    • WO01086333A2
    • 2001-11-15
    • PCT/DE2001/001716
    • 2001-05-07
    • G02B26/00G01M11/00G02B5/30G02B6/024G02B27/28H04B10/2569G02B6/27
    • G01M11/336H04B10/2569
    • The invention relates to a system for producing a predeterminable polarization mode dispersion (PMD) comprised of: a first polarization splitter/combiner element, which splits the incoming signal into two signals having polarization directions that are perpendicular to one another; a delay unit, which is arranged in one of the signal lines of both (split) signals, and; a second polarization splitter/combiner element, which combines both split signals once again. The invention is characterized in that for producing a second order polarization mode dispersion, an element is provided, which twists the polarization principal axes, in front of and behind the element, around an appropriate angle with regard to one another, and in that the light signal exiting this element is fed into a system, which is also comprised of a polarization/combiner element, of a delay line and of another polarization/combiner element for combining both signal lines.
    • 公开的是用于产生预定的偏振模色散,其包括第一偏振分离器/组合器元件,其将输入信号分为两个信号具有相互正交的偏振方向,延迟单元,一种装置,它在这两个(分割)的信号的信号路径中的一 被布置,第二偏振分束器/组合器元件,其使两个单独的信号一起。 本发明的特征在于,一个元件是用于产生第二阶偏振模式色散提供之前和通过适当的角度对于彼此扭转的元件的后面,并从该元件的光信号出现在所涉及的光的偏振主轴 被供给装置,其中还包括一个偏振分离器/组合器元件,延迟线和用于两个信号路径组合进一步偏振分离器/组合器元件的。
    • 7. 发明申请
    • OPTICAL FIBER CONNECTING DEVICE AND OPTICAL FIBER QUALITY MEASURING SYSTEM USING SAME
    • 光纤连接器件和光纤质量测量系统
    • WO2009099281A4
    • 2010-01-28
    • PCT/KR2009000422
    • 2009-01-29
    • LS CABLE LTDYOOK TAE-KYOUNGPARK LAE-HYUKPARK JI-SANGSOHN SOON-ILSHIN HYUNG-SOO
    • YOOK TAE-KYOUNGPARK LAE-HYUKPARK JI-SANGSOHN SOON-ILSHIN HYUNG-SOO
    • G02B6/00
    • G02B6/3809G01M11/336G02B6/362G02B6/3636G02B6/3652
    • The present invention relates to an optical fiber connecting device and an optical fiber quality measuring system using same. The optical fiber quality measuring system of the present invention includes a measuring unit for measuring optical fiber quality including PMD (Polarization Mode Dispersion) or optical loss of optical fiber; a connecting optical fiber including a first optical fiber connected to a transmitter end of the measuring unit and a second optical fiber connected to a receiver end of the measuring unit; an objective optical fiber connected to the first optical fiber and the second optical fiber such that optical quality of the objective optical fiber can be measured by the measuring unit; and a connector for physically and optically connecting the connecting optical fiber and the objective optical fiber. The connector includes a vacuum pump for generating vacuum pressure; and a contact retention unit for supporting the connecting optical fiber and the objective optical fiber which are uncoated and connected to each other, and retaining the contact state by sucking the connecting optical fiber and the objective optical fiber through the use of the vacuum pressure generated from the vacuum pump. The vacuum connection system of the present invention has a connection setting time shorter than that of a mechanical connection system and is suitable for use in the mass-produced optical fiber industry.
    • 本发明涉及一种光纤连接装置和使用该光纤连接装置的光纤质量测量系统。 本发明的光纤质量测量系统包括:用于测量包括PMD(偏振模色散)或光纤损耗的光纤质量的测量单元; 连接光纤,包括连接到测量单元的发射器端的第一光纤和连接到测量单元的接收器端的第二光纤; 连接到第一光纤和第二光纤的物镜光纤,使得可以通过测量单元测量物镜光纤的光学质量; 以及用于物理和光学连接连接光纤和物镜光纤的连接器。 连接器包括用于产生真空压力的真空泵; 以及接触保持单元,其用于支撑未涂覆并连接的连接光纤和物镜光纤,并且通过使用从...产生的真空压力吸取连接光纤和物镜光纤来保持接触状态 真空泵。 本发明的真空连接系统具有比机械连接系统短的连接设定时间,适用于批量生产的光纤行业。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR DETERMINING DIFFERENTIAL GROUP DELAY AND POLARIZATION MODE DISPERSION
    • 用于确定差分组延迟和极化模式分散的方法和装置
    • WO2008116314A1
    • 2008-10-02
    • PCT/CA2008/000577
    • 2008-03-28
    • EXFO ELECTRO-OPTICAL ENGINEERING INC.CYR, NormandCHEN, Hongxin
    • CYR, NormandCHEN, Hongxin
    • G01M11/02H01S3/067H01S3/082H01S3/23H01S5/026H01S5/10
    • G01M11/336G01M11/335
    • A method and apparatus for measuring at least one polarization-related characteristic of an optical path (FUT) uses a light input unit connected to the FUT at or adjacent a proximal end of the FUT and a light output unit connected to the FUT at or adjacent its proximal or distal end. The light input unit injects into the FUT at least partially polarized light having a controlled state of polarization (I-SOP). The output light unit extracts corresponding light from the FUT, analyzes and detects the extracted light corresponding to at least one transmission axis (A-SOP), and processes the corresponding electrical signal to obtain transmitted coherent optical power at each wavelength of light in each of at least two groups of wavelengths, wherein the lowermost (λ 1 ) and uppermost (λ u ) said wavelengths in each said group of wavelengths are closely- spaced. A processing unit than computes at least one difference in a measured power parameter corresponding to each wavelength in a wavelength pair for each of the at least two groups, the measured power parameter being proportional to the power of the said analyzed and subsequently detected light, thereby defining a set of at least two measured power parameter differences; computes the mean-square value of said set of differences; and calculating the at least one polarization-related FUT characteristic as at least one predetermined function of said mean-square value, the predetermined function being dependent upon the small optical frequency difference between the wavelengths corresponding to the said each at least said two pairs of closely-spaced wavelengths.
    • 用于测量光路(FUT)的至少一个偏振相关特性的方法和装置使用在FUT的近端处或邻近FUT连接到FUT的光输入单元,以及连接到FUT在或相邻的FUT的光输出单元 其近端或远端。 光输入单元将具有受控的极化状态(I-SOP)的至少部分偏振光注入到FUT中。 输出光单元从FUT提取对应的光,分析并检测与至少一个透射轴(A-SOP)对应的提取光,并处理相应的电信号,以获得每个波长的每个波长的透射相干光焦度 至少两组波长,其中每个所述波长组中的所述最低(λ1 SUB)和最高(λ
    • 10. 发明申请
    • 分散検出装置およびそれを用いた自動分散補償システム
    • 分散剂测定装置及其自动分散补偿系统
    • WO2008065784A1
    • 2008-06-05
    • PCT/JP2007/065900
    • 2007-08-15
    • 日本電気株式会社吉田 信秀
    • 吉田 信秀
    • G01M11/02H04B10/02H04B10/18
    • G01M11/336H04B10/07951H04B10/2569H04B10/29H04B10/697H04B2210/252H04B2210/254
    •  本発明の分散検出装置は、伝送路を伝送されてきた受信信号の受信波形からデータをサンプリングする波形モニタ回路(2)、および、波形モニタ回路(2)により得られたサンプリングデータを基にして受信波形の電圧方向の強度分布を表すヒストグラムデータを抽出するヒストグラム抽出回路(3)を有する受信波形モニタ処理部(1)と、受信波形モニタ処理部(1)にて抽出されたヒストグラムデータを解析することで得られる受信波形の受信アイパターン波形の左右の非対称度合いを判定し、判定した非対称度合いを基にして伝送路における偏波分散量を推定する偏波分散推定回路(7)を有する分散量検出部(4)と、から構成される。
    • 色散决定装置包括接收波形监视部分(1)和色散量确定部分(4)。 接收波形监视部分(1)具有波形监视电路(2),其从沿传输路径传播的接收信号的接收波形中采样数据;以及直方图提取电路(3),其基于采样数据 由波形监视电路(2)得到的表示接收波形的电压方向的强度分布的直方图数据。 色散量确定部分(4)具有偏振波分散估计电路(7),其确定通过分析由接收波形监视部分(1)提取的直方图数据而获得的接收波形的接收眼图波形的水平不对称度 ),然后基于确定的不对称度估计传输路径中的偏振波色散量。