公开(公告)号：US08861953B2

公开(公告)日：2014-10-14

申请号：US13204350

申请日：2011-08-05

Applicant: Bernard Ruchet ,  Normand Cyr

Inventor： Bernard Ruchet ,  Normand Cyr

IPC: H04B10/08 ,  H04B10/079

CPC classification number: H04B10/07955 ,  H04B3/46 ,  H04B10/079 ,  H04B10/0793 ,  H04B10/0795 ,  H04B10/07953 ,  H04Q11/0067 ,  H04Q2011/0083

Abstract: Portable apparatus for measuring parameters of optical signals propagating concurrently in opposite directions in an optical transmission path between two elements, at least one of the elements being operative to transmit a first optical signal (S1) only if it continues to receive a second optical signal (S2) from the other (10) of said elements, comprises first and second connectors for connecting the apparatus into the optical transmission path in series therewith, and a device connected between the first and second connectors for propagating at least the second optical signal (S2) towards the one of the elements, and measuring the parameters of the concurrently propagating optical signals (S1, S2). The measurement results may be displayed by a suitable display unit. Where one element transmits signals at two different wavelengths, the apparatus may separate parts of the corresponding optical signal portion according to wavelength and process them separately.

Abstract translation: 用于测量在两个元件之间的光传输路径中沿相反方向同时传播的光信号的参数的便携式设备，所述元件中的至少一个仅在其继续接收第二光信号（S1）时才发送第一光信号（S1） S2）从所述元件的另一个（10）中包括用于将设备串联连接到光传输路径中的第一和第二连接器以及连接在第一和第二连接器之间的装置，用于至少传播第二光信号（S2 ），并测量同时传播的光信号（S1，S2）的参数。 测量结果可以由合适的显示单元显示。 当一个元件以两个不同的波长发射信号时，该装置可以根据波长分离对应的光信号部分的部分并分别处理它们。

公开(公告)号：US08364034B2

公开(公告)日：2013-01-29

申请号：US12859648

申请日：2010-08-19

Applicant: Gang He ,  Normand Cyr ,  Daniel Gariepy

Inventor： Gang He ,  Normand Cyr ,  Daniel Gariepy

IPC: H04B10/08

CPC classification number: H04B10/07953

Abstract: A method comprises: acquiring, for a number nSOP of varied State-Of-Polarization analysis conditions of the input optical signal, nSOP polarization-analyzed optical spectrum traces; mathematically discriminating said signal contribution from said noise contribution within said optical signal bandwidth using said polarization-analyzed optical spectrum traces, said mathematically discriminating comprising: obtaining a differential polarization response that is related to the optical spectrum of said signal contribution by a constant of proportionality; estimating the constant of proportionality of a differential polarization response to the optical spectrum of said signal contribution; estimating the optical spectrum of said noise contribution from said input optical signal, within said optical signal bandwidth using said constant of proportionality and said differential polarization response; and determining said in-band noise parameter on said input optical signal from the mathematically discriminated noise contribution.

Abstract translation: 一种方法包括：对于输入光信号的nSOP极化分析条件的nSOP数值，获取nSOP偏振分析光谱图; 使用所述经偏振分析的光谱轨迹，在所述光信号带宽内从所述噪声贡献中数学地识别所述信号贡献，所述数学鉴别包括：获得与所述信号贡献的光谱相关比例常数的差分偏振响应; 估计差分极化响应与所述信号贡献的光谱的比例常数; 使用所述比例常数和所述微分极化响应在所述光信号带宽内估计来自所述输入光信号的所述噪声贡献的光谱; 以及从所述数学鉴别的噪声贡献中确定所述输入光信号上的所述带内噪声参数。

公开(公告)号：US20110293267A1

公开(公告)日：2011-12-01

申请号：US13204350

申请日：2011-08-05

Applicant: Bernard Ruchet ,  Normand Cyr

Inventor： Bernard Ruchet ,  Normand Cyr

IPC: H04B10/08

CPC classification number: H04B10/07955 ,  H04B3/46 ,  H04B10/079 ,  H04B10/0793 ,  H04B10/0795 ,  H04B10/07953 ,  H04Q11/0067 ,  H04Q2011/0083

Abstract: Portable apparatus for measuring parameters of optical signals propagating concurrently in opposite directions in an optical transmission path between two elements, at least one of the elements being operative to transmit a first optical signal (S1) only if it continues to receive a second optical signal (S2) from the other (10) of said elements, comprises first and second connectors for connecting the apparatus into the optical transmission path in series therewith, and a device connected between the first and second connectors for propagating at least the second optical signal (S2) towards the one of the elements, and measuring the parameters of the concurrently propagating optical signals (S1, S2). The measurement results may be displayed by a suitable display unit. Where one element transmits signals at two different wavelengths, the apparatus may separate parts of the corresponding optical signal portion according to wavelength and process them separately.

Abstract translation: 用于测量在两个元件之间的光传输路径中沿相反方向同时传播的光信号的参数的便携式设备，所述元件中的至少一个仅在其继续接收第二光信号（S1）时才发送第一光信号（S1） S2）从所述元件的另一个（10）中包括用于将设备串联连接到光传输路径中的第一和第二连接器以及连接在第一和第二连接器之间的装置，用于至少传播第二光信号（S2 ），并测量同时传播的光信号（S1，S2）的参数。 测量结果可以由合适的显示单元显示。 当一个元件以两个不同的波长发射信号时，该装置可以根据波长分离对应的光信号部分的部分并分别处理它们。

公开(公告)号：US20140071436A1

公开(公告)日：2014-03-13

申请号：US13767851

申请日：2013-02-14

Applicant: Normand Cyr ,  Hongxin Chen ,  Gregory Waltet Schinn

Inventor： Normand Cyr ,  Hongxin Chen ,  Gregory Waltet Schinn

IPC: G01N21/21 ,  G06F17/18

CPC classification number: G01N21/21 ,  G01M11/3163 ,  G01M11/3181 ,  G01M11/335 ,  G01M11/336 ,  G06F17/18

Abstract: A polarization-related characteristic of an optical path is determined from a predetermined function of the mean-square of a plurality of differences between polarization-analyzed optical power parameters corresponding to pairs of wavelengths mutually spaced about a midpoint wavelength by a small optical frequency difference. At least some of the said differences correspond to wavelength pairs measured under conditions where at least one of midpoint wavelength, input state of polarization (I-SOP) or analyzed state of polarization (A-SOP) of a pair is different.

Abstract translation: 光路的极化相关特性是根据对应于中点波长相互间隔的一对波长的偏振分析光功率参数之间的多个差的平均值的预定函数由小的光频差确定的。 所述差异中的至少一些对应于在一对中点波长，输入偏振态（I-SOP）或分析的偏振状态（A-SOP）中的至少一个不同的条件下测量的波长对。

公开(公告)号：US07995915B2

公开(公告)日：2011-08-09

申请号：US11713735

申请日：2007-03-05

Applicant: Bernard Ruchet ,  Normand Cyr

Inventor： Bernard Ruchet ,  Normand Cyr

IPC: H04B10/08

CPC classification number: H04B10/07955 ,  H04B3/46 ,  H04B10/079 ,  H04B10/0793 ,  H04B10/0795 ,  H04B10/07953 ,  H04Q11/0067 ,  H04Q2011/0083

Abstract: Portable apparatus for measuring parameters of optical signals propagating concurrently in opposite directions in an optical transmission path between two elements, at least one of the elements being operative to transmit a first optical signal (S1) only if it continues to receive a second optical signal (S2) from the other (10) of said elements, comprises first and second connectors for connecting the apparatus into the optical transmission path in series therewith, and a device connected between the first and second connectors for propagating at least the second optical signal (S2) towards the one of the elements, and measuring the parameters of the concurrently propagating optical signals (S1, S2). The measurement results may be displayed by a suitable display unit. Where one element transmits signals at two different wavelengths, the apparatus may separate parts of the corresponding optical signal portion according to wavelength and process them separately.

Abstract translation: 用于测量在两个元件之间的光传输路径中沿相反方向同时传播的光信号的参数的便携式设备，所述元件中的至少一个仅在其继续接收第二光信号（S1）时才发送第一光信号（S1） S2）从所述元件的另一个（10）中包括用于将设备串联连接到光传输路径中的第一和第二连接器以及连接在第一和第二连接器之间的装置，用于至少传播第二光信号（S2 ），并测量同时传播的光信号（S1，S2）的参数。 测量结果可以由合适的显示单元显示。 当一个元件以两个不同的波长发射信号时，该装置可以根据波长分离对应的光信号部分的部分并分别处理它们。

公开(公告)号：US07920253B2

公开(公告)日：2011-04-05

申请号：US11992797

申请日：2006-09-29

Applicant: Normand Cyr ,  Hongxin Chen

Inventor： Normand Cyr ,  Hongxin Chen

IPC: G01N21/00 ,  G01J4/00

CPC classification number: G01M11/3181

Abstract: In a method of measuring cumulative polarization mode dispersion (PMD) along the length of a fiber-under-test (FUT), a polarization-sensitive optical time domain reflectometer (POTDR) is used to inject into the FUT plural series of light pulses arranged in several groups. Each group comprises at least two series having closely-spaced wavelengths and the same state of polarization (SOP). At least two of such groups are injected and corresponding OTDR traces obtained for each series by averaging the impulse-response signals of the several series in the group. The process is repeated for a number of groups. The PMD is obtained by normalizing the OTDR traces of all of the groups, then computing the difference between each normalized OTDR trace in one group and the corresponding normalized OTDR trace in another group, followed by the mean-square value of the differences. Finally, the PMD is computed as a predetermined function of the mean-square difference.

Abstract translation: 在沿着被测光纤（FUT）的长度测量累积偏振模色散（PMD）的方法中，使用极化敏感光时域反射计（POTDR）将FUT多个系列的光脉冲 在几个组。 每个组包括具有紧密间隔的波长和相同的极化状态（SOP）的至少两个系列。 通过平均组中几个系列的脉冲响应信号，为每个系列注入至少两个这样的组以及相应的OTDR迹线。 对于多个组重复该过程。 通过归一化所有组的OTDR轨迹，然后计算一组中的每个归一化OTDR轨迹与另一组中相应的归一化OTDR轨迹之间的差异，然后是差值的均方根值，获得PMD。 最后，将PMD计算为均方差的预定函数。

公开(公告)号：US07227645B2

公开(公告)日：2007-06-05

申请号：US10544638

申请日：2003-02-06

Applicant: Normand Cyr

Inventor： Normand Cyr

IPC: G01B9/02

CPC classification number: G01J4/04 ,  G01M11/331 ,  G01M11/336

Abstract: Apparatus for measuring polarization mode dispersion (PMD) of a device, 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 orthogonal Feb. 25, 2003 Feb. 25, 2003 polarization states, detectors (32x,32y) for converting the first and second orthogonal polarization states, respectively, into corresponding first and second electrical signals (Px(τ),Py(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 (EC(τ)) and an auto-correlation envelope (Ec(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.

Abstract translation: 用于测量装置的偏振模色散（PMD）的装置，例如， 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） ），用于接收来自干涉仪的光并且在2003年2月25日的第一和第二正交方向上分离这样的接收光，2003年2月25日，偏振态，检测器（32×32， 分别将第一和第二正交极化状态转换成对应的第一和第二电信号（P SUB）（τ），P SUB（τ））， 以及用于分别计算第一和第二电信号的差的模数和处理器（36）以产生互相关包络（E SUB）（τ） 相关包络（τ）（τ）），以及根据表达式PMD =其中确定偏振模色散 并且τT是干涉仪的路径之间的延迟差。

公开(公告)号：US20120093501A1

公开(公告)日：2012-04-19

申请号：US13378557

申请日：2010-08-19

Applicant: Gang He ,  Normand Cyr

Inventor： Gang He ,  Normand Cyr

IPC: H04B10/08

CPC classification number: H04B10/07953

Abstract: A method comprises: acquiring, for a number nSOP of varied State-Of-Polarization analysis conditions of the input optical signal, nSOP polarization-analyzed optical spectrum traces, the distribution of the input optical signal of said SOP analysis conditions being approximately known; mathematically discriminating said signal contribution from said noise contribution within said optical signal bandwidth using said polarization-analyzed optical spectrum traces, said mathematically discriminating comprising: obtaining a differential polarization response that is related to the optical spectrum of said signal contribution by a constant of proportionality; estimating the constant of proportionality of a differential polarization response to the optical spectrum of said signal contribution as a function of said number nSOP; estimating the optical spectrum of said noise contribution from said input optical signal, within said optical signal bandwidth using said constant of proportionality and said differential polarization response; and determining said in-band noise parameter on said input optical signal from the mathematically discriminated noise contribution.

Abstract translation: 一种方法包括：对于输入光信号，nSOP偏振分析的光谱轨迹的不同状态的极化分析条件的数量nSOP，获取所述SOP分析条件的输入光信号的分布近似已知; 使用所述经偏振分析的光谱轨迹，在所述光信号带宽内从所述噪声贡献中数学地识别所述信号贡献，所述数学鉴别包括：获得与所述信号贡献的光谱相关比例常数的差分偏振响应; 估计作为所述数量nSOP的函数的所述信号贡献的光谱的差分偏振响应的比例常数; 使用所述比例常数和所述微分极化响应在所述光信号带宽内估计来自所述输入光信号的所述噪声贡献的光谱; 以及从所述数学鉴别的噪声贡献中确定所述输入光信号上的所述带内噪声参数。

公开(公告)号：US06762829B2

公开(公告)日：2004-07-13

申请号：US10373736

申请日：2003-02-27

Applicant: François Babin ,  Normand Cyr

Inventor： François Babin ,  Normand Cyr

IPC: G01N2100

CPC classification number: G01N21/21 ,  G01J4/04 ,  G01M11/337

Abstract: A property of a device that is dependent upon both wavelength and state of polarization is measured by; passing through the device an optical signal having its wavelength and SOP varied, the wavelength over a spectral range of the device and the SOP between four Mueller SOPs; measuring the insertion loss of the device for each of the four SOPS and at each wavelength; using the four insertion loss measurements for each of the four different states of polarization for each wavelength to compute the four elements of the first line of the Mueller matrix for each wavelength; and using the Mueller matrix elements, computing insertion loss variations for the device for a multiplicity of input states of polarization in addition to the four states of polarization for which the actual attenuation measurements were made and using the insertion loss variations to compute the polarization and wavelength dependent property.

Abstract translation: 取决于波长和极化状态的器件的性质是通过测量的; 通过该器件具有其波长和SOP的光信号变化，器件的光谱范围上的波长和四个Mueller SOP之间的SOP; 测量四个SOPS中每一个和每个波长的器件的插入损耗; 对于每个波长使用四种不同极化状态中的每一种的四次插入损耗测量来计算每个波长的Mueller矩阵的第一行的四个元素; 并且使用Mueller矩阵元素，除了进行实际衰减测量的四个极化状态之外，还计算多个输入极化状态的装置的插入损耗变化，并且使用插入损耗变化来计算极化和波长 依赖财产。

公开(公告)号：US06204924B1

公开(公告)日：2001-03-20

申请号：US09255849

申请日：1999-02-23

Applicant: Normand Cyr

Inventor： Normand Cyr

IPC: G01B902

CPC classification number: G01M11/336 ,  G01J3/447 ,  G01J4/04 ,  G01M11/331

Abstract: Apparatus for measuring very low levels of polarization mode dispersion of optical devices, that is inexpensive, robust and portable, comprises a broadband source and a polarizer for directing substantially completely polarized broadband light into the device under test with the polarization in a plane substantially perpendicular to the propagation direction of the light. Light leaving the device is analyzed spectrally to produce a spectrum of intensity in dependence upon wavelength or frequency of such light for each of at least two mutually orthogonal polarization axes in a plane perpendicular to the propagation axis of the light leaving the device. The spectra are used to compute Stokes parameters s1, s2 and |s3| for each of a plurality of wavelengths within the bandwidth of the broadband light. The polarization mode dispersion of the device is characterized in dependence upon the Stokes parameters using one of several techniques including standard Fixed Analyzer techniques and polarimetric techniques, especially the Poincaré sphere technique. The apparatus is particularly suitable for measuring PMD of components of optical telecommunications systems, including optical fibers, optical isolators, couplers, light amplifiers, and dispersion compensators.

Abstract translation: 用于测量光学器件的非常低水平的偏振模色散的装置，其便宜，稳健和便携，包括宽带光源和偏振器，用于将基本上完全偏振的宽带光引导到被测器件中，其中极化基本上垂直于 光的传播方向。 在垂直于离开设备的光的传播轴的平面中，离开设备的光被光谱地分析以产生与这种光的波长或频率相关的至少两个相互正交的偏振轴中的每一个的光的光谱。 光谱用于计算斯托克斯参数s1，s2和| s3 | 对于宽带光的带宽内的多个波长中的每一个。 器件的偏振模色散根据斯托克斯参数的特征，使用包括标准固定分析仪技术和极化技术在内的几种技术之一，特别是庞加莱球技术。 该装置特别适用于测量包括光纤，光隔离器，耦合器，光放大器和色散补偿器在内的光通信系统的组件的PMD。