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    • 21. 发明申请
    • OPTICAL FIBER CONNECTING DEVICE AND OPTICAL FIBER QUALITY MEASURING SYSTEM USING SAME
    • 光纤连接装置和使用该装置的光纤质量测量系统
    • WO2009099281A2
    • 2009-08-13
    • 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.
    • 光纤连接装置和使用其的光纤质量测量系统技术领域本发明涉 本发明的光纤质量测量系统包括:测量单元,用于测量包括PMD(偏振模色散)或光纤的光损耗的光纤质量; 连接光纤,其包括连接到测量单元的发送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,使得物镜光纤的光学质量可以由测量单元测量; 以及连接器,用于物理地和光学地连接连接光纤和物镜光纤。 该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,其用于支撑未被涂覆并且彼此连接的连接光纤和物镜光纤,并且通过利用由所产生的真空压力吸引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的连接设定时间比机械连接系统的连接设定时间短,适用于批量生产的光纤工业。
    • 24. 发明申请
    • 光特性測定装置、方法、プログラムおよび該プログラムを記録した記録媒体
    • 光学特性测量仪器和程序记录的方法,程序和记录介质
    • WO2004094983A1
    • 2004-11-04
    • PCT/JP2004/005758
    • 2004-04-22
    • 株式会社アドバンテスト西川 健司
    • 西川 健司
    • G01M11/02
    • G01M11/336
    •  偏光成分の偏りによる光特性の測定への悪影響を防止する。 第二計測部25は、光ファイバ18から出射された光に基づき入射光の群遅延時間τpg、τsgを計測する。第一計測部24の振幅相当値(パワー)においてp偏光軸あるいはs偏光軸に偏りが見られた場合(T 11 2 ≪T 21 2 、T 11 2 ≫T 21 2 、T 12 2 ≪T 22 2 、T 12 2 ≫T 22 2 )、光特性測定部26は、群遅延時間τpg、τsgに光ファイバ18の伝達関数の成分に基づく群遅延時間τ 11 、τ 21 、τ 12 、τ 22 を測定する。よって、第一計測部24の振幅相当値(パワー)においてp偏光軸あるいはs偏光軸に偏りが見られたとしても、第二計測部25の計測結果(パワーのp偏光軸あるいはs偏光軸への偏りの影響を受けない)に基づき群遅延時間の測定が行われるので、偏光成分の偏りによる光特性の測定への悪影響が防止できる。
    • 防止偏振分量的偏差对光学特性的测量的不良影响。 第二测量部分(25)确定从光纤(18)出射的出射光进入光纤(18)的入射光的组延迟时间(taupg,tausg)。 如果沿着p偏振轴或s偏振轴存在由第一测量部分(24)测量的幅度等效值(功率)的偏差(即,T11 <2> << T21 <2>,T11 <2 >> 光电特性测量部分(26)确定组延迟时间(τ11,τ21,τ12,τ22),T12 <2>,T12 <2> << T22 <2>,T12 <2 >>> T22 <2> 来自光纤(18)的传递函数的分量。 因此,即使沿着p偏振轴或s偏振轴存在由第一测量部(24)测量的振幅当量值(功率)的偏差,也可以根据测量结果( 不受来自功率的p偏振轴或s偏振轴的偏差的影响)通过第二测量部分(25)。 结果,防止偏振分量的偏差对光学特性的测量的不良影响。
    • 25. 发明申请
    • METHOD AND APPARATUS FOR MEASURING POLARIZATION MODE DISPERSION
    • 用于测量极化模式分布的方法和装置
    • WO2004070341A1
    • 2004-08-19
    • PCT/CA2003/000151
    • 2003-02-06
    • EXFO ELECTRO-OPTICAL ENGINEERING INC.CYR, Normand
    • CYR, Normand
    • G01M11/00
    • G01J4/04G01M11/331G01M11/336
    • Apparatus for measuring polarization mode dispersion (PMD) of adevice, e. g. a waveguide, comprises a broadband light source (10,12) for passing polarized broadband light through the device (14), an interferometer (20) for dividing and recombining light that has passed through the device to form interferograms, a polarization separator (30) for receiving the light from the interferometer and separating such received light along first and second orthogonalFebruary 25, 2003February 25, 2003 polarization states, detectors (32 x ,32 y ) for converting the first and second orthogonal polarization states, respectively, into corresponding first and second electrical signals (P x (τ),P y (τ)), and a processor (36) for computing the modulus of the difference and such, respectively, of the first and second electrical signals to produce a cross-correlation envelope (E C (τ)) and an auto-correlation envelope (E c (τ)), and determining the polarization mode dispersion according to the expression PMD = where and τ is the delay difference between the paths of the interferometer.
    • 用于测量装置的偏振模色散(PMD)的装置, G。 波导,包括用于使偏振宽带光通过装置(14)的宽带光源(10,12),用于分割和重新组合通过该装置的光以形成干涉图的干涉仪(20);偏振分离器(30) ),用于从所述干涉仪接收光并将所述接收的光沿着第一和第二正交方向分离,2003年2月25日,2003年2月25日,偏振态,用于将第一和第二正交偏振态分别转换成相应的第一和第二相位的检测器(32x,32y) 电信号(Px(τ),Py(tau))和处理器(36),用于分别计算第一和第二电信号的差等的模数,以产生互相关包络(EC(τ ))和自相关包络(Ec(τ)),以及根据表达式PMD =确定偏振模色散,其中τ是干涉仪的路径之间的延迟差 。
    • 28. 发明申请
    • METHOD OF EVALUATING AND MEASURING POLARIZATION STATE, POLARIZATION STATE AND POLARIZATION MODE DISPERSION AND APPARATUS THEREFOR
    • 评估和测量极化状态,极化状态和极化模式分布的方法及其设备
    • WO1997002476A1
    • 1997-01-23
    • PCT/JP1996001786
    • 1996-06-27
    • FURUKAWA DENKI KOGYO KABUSHIKI KAISHAASO, OsamuOHSHIMA, IsamuOGOSHI, Haruki
    • FURUKAWA DENKI KOGYO KABUSHIKI KAISHA
    • G01J04/00
    • G01J4/00G01J4/04G01M11/336G01M11/337G01N21/21
    • A polarization state and polarization characteristics of a light transmitting medium are evaluated by Jones vectors containing Stokes vectors and Jones matrix. Rays of light of under three kinds of polarized states are applied from an incidence side apparatus (2) to a light transmitting medium (1), and a branched beam of light I on the outgoing side and branched beams of light Q, U and V passing through analyzers in directions of 0 DEG , 90 DEG and 45 DEG are detected as the Stokes vectors by light intensity. The Stokes vectors are normalized such as S1 = Q/I, S2 = U/I and S3 = V/I, and are re-normalized in a unit length such as S1/(S1 + S2 + S3 ) => S1. A polarization evaluation portion (15) actually measures the Jones vector containing the re-normalized Stokes vector as its component and evaluates the polarized state of the light transmitting medium (1). A polarization characteristics evaluation portion (13) actually measures a Jones matrix containing the re-normalized Stokes vector as the components thereof and evaluates the polarization characteristics of the light transmitting medium (1).
    • 通过包含斯托克斯矢量和琼斯矩阵的琼斯矢量评估光透射介质的极化状态和偏振特性。 从入射侧装置(2)向光传输介质(1)施加三种偏振态的光线,并且在出射侧具有分支光束I和分支光束Q,U和V 以0度,90度,45度方向通过分析仪,通过光强检测为斯托克斯矢量。 斯托克斯矢量被归一化,例如S1 = Q / I,S2 = U / I和S3 = V / I,并且以单位长度重新归一化,例如S1 /(S1-2 + S22 + S3 <2>)=> S1。 极化评估部分(15)实际上测量包含重新归一化的斯托克斯矢量的琼斯矢量作为其分量并评估光传输介质(1)的偏振状态。 偏振特性评价部(13)实际上测量包含重归一化斯托克斯矢量的琼斯矩阵作为其分量,并评估光传输介质(1)的极化特性。