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1. 发明申请

US20140071436A1 DETERMINING A POLARIZATION-RELATED CHARACTERISTIC OF AN OPTICAL LINK 有权
标题翻译：确定光学链路的极化相关特性
公开(公告)号：US20140071436A1
公开(公告)日：2014-03-13
申请号：US13767851
申请日：2013-02-14
申请人： Normand Cyr , Hongxin Chen , Gregory Waltet Schinn
发明人： Normand Cyr , Hongxin Chen , Gregory Waltet Schinn
IPC分类号： G01N21/21 , G06F17/18
CPC分类号： G01N21/21 , G01M11/3163 , G01M11/3181 , G01M11/335 , G01M11/336 , G06F17/18
摘要： 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.
摘要翻译：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。

2. 发明申请

US20100073667A1 Method and Apparatus for Determining Differential Group Delay and Polarization Mode Dispersion 审中-公开
标题翻译：用于确定差分组延迟和极化模式色散的方法和装置
公开(公告)号：US20100073667A1
公开(公告)日：2010-03-25
申请号：US12568554
申请日：2009-09-28
申请人： Normand Cyr , Hongxin Chen
发明人： Normand Cyr , Hongxin Chen
IPC分类号： G01N21/84
CPC分类号： G01M11/336 , G01M11/3163 , G01M11/3181
摘要： A method and apparatus for measuring at least one polarization-related characteristic of an optical path (FUT) uses an optical source means connected to the FUT at or adjacent a proximal end of the FUT and an analyzing-and-detection unit connected to the FUT at or adjacent its proximal or distal end. The optical source means injects into the FUT at least partially polarized light having a controlled state of polarization (I-SOP). The analyzer-and-detection 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 (λl) and uppermost (λU) 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.
摘要翻译：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连接到FUT近端或其附近的FUT的光源装置，以及连接到FUT的分析和检测单元在其近端或远端附近。光源装置将具有受控的偏振态（I-SOP）的至少部分偏振光注入到FUT中。分析仪检测单元从FUT中提取相应的光，分析并检测与至少一个透射轴（A-SOP）相对应的提取光，并对相应的电信号进行处理，以在光的每个波长处获得透射的相干光焦度在至少两组波长中的每一个中，其中每个所述波长组中的最低（λ1）和最上（λU）个波长是紧密间隔的。一个处理单元，其计算与所述至少两个组中的每个组的波长对中的每个波长相对应的测量功率参数中的至少一个差异，所测量的功率参数与所述分析和随后检测到的光的功率成比例，从而定义一组至少两个测量的功率参数差; 计算所述差异集合的均方值; 以及计算所述至少一个偏振相关的FUT特性作为所述均方值的至少一个预定函数，所述预定函数取决于对应于所述每个至少所述两对密切对应的波长之间的小的光学频率差间隔波长。

3. 发明申请

US20090244522A1 Polarization Optical Time Domain Reflectometer and Method of Determining PMD 失效
标题翻译：极化光时域反射计及PMD的测定方法
公开(公告)号：US20090244522A1
公开(公告)日：2009-10-01
申请号：US11992797
申请日：2006-09-29
申请人： Normand Cyr , Hongxin Chen
发明人： Normand Cyr , Hongxin Chen
IPC分类号： G01N21/00 , G06F15/00
CPC分类号： G01M11/3181
摘要： 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 of light pulses having different but closely-spaced wavelengths and the same state of polarization (SOP). At least two, and preferably a large number of such groups, are injected and corresponding OTDR traces obtained for each series of light pulses by averaging the impulse-response signals of the several series of light pulses in the group. The process is repeated for a large number of groups having different wavelengths and/or SOPs. The PMD then 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. The function may, for example, be a differential formula, an arcsine formula, and so on.
摘要翻译：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。每个组包括至少两个具有不同但紧密相隔的波长和相同的偏振状态（SOP）的光脉冲序列。通过平均组中若干系列的光脉冲的脉冲响应信号，为每一系列光脉冲注入至少两个，优选大量的这样的基团和相应的OTDR迹线。对于具有不同波长和/或SOP的大量组重复该过程。然后通过归一化所有组的OTDR迹线获得PMD，然后计算一组中的每个归一化OTDR迹线与另一组中对应的归一化OTDR迹线之间的差异，随后是差的均方值。最后，将PMD计算为均方差的预定函数。该函数可以是例如微分公式，反正弦公式等。

4. 发明申请

US20080100828A1 Polarization-sensitive optical time domain reflectometer and method for determining PMD 审中-公开
标题翻译：偏振敏感光时域反射计和PMD测定方法
公开(公告)号：US20080100828A1
公开(公告)日：2008-05-01
申请号：US11727759
申请日：2007-03-28
申请人： Normand Cyr , Hongxin Chen
发明人： Normand Cyr , Hongxin Chen
IPC分类号： G01N21/00
CPC分类号： G01M11/3181
摘要： 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 of light pulses having different but closely-spaced wavelengths and the same state of polarization (SOP). At least two, and preferably a large number of such groups, are injected and corresponding OTDR traces obtained for each series of light pulses by averaging the impulse-response signals of the several series of light pulses in the group. The process is repeated for a large number of groups having different wavelengths and/or SOPs. The PMD then is obtained from the resulting normalized OTDR traces of all of the groups, by 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. The function may, for example, be a differential formula, an arcsine formula, and so on.
摘要翻译：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。每个组包括至少两个具有不同但紧密相隔的波长和相同的偏振状态（SOP）的光脉冲序列。通过平均组中若干系列的光脉冲的脉冲响应信号，为每一系列光脉冲注入至少两个，优选大量的这样的基团和相应的OTDR迹线。对于具有不同波长和/或SOP的大量组重复该过程。然后通过计算一组中的每个归一化OTDR迹线与另一组中对应的归一化OTDR迹线之间的差异，然后是差异的均方根值，从所有组的所得归一化OTDR迹线获得PMD。最后，将PMD计算为均方差的预定函数。该函数可以是例如微分公式，反正弦公式等。

5. 发明授权

US07920253B2 Polarization optical time domain reflectometer and method of determining PMD 失效
标题翻译：偏振光学时域反射计和PMD的测定方法
公开(公告)号：US07920253B2
公开(公告)日：2011-04-05
申请号：US11992797
申请日：2006-09-29
申请人： Normand Cyr , Hongxin Chen
发明人： Normand Cyr , Hongxin Chen
IPC分类号： G01N21/00 , G01J4/00
CPC分类号： G01M11/3181
摘要： 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.
摘要翻译：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。

6. 发明授权

US08861953B2 Method and apparatus for testing transmission lines normally propagating optical signals 有权
标题翻译：测试传输线正常传播光信号的方法和装置
公开(公告)号：US08861953B2
公开(公告)日：2014-10-14
申请号：US13204350
申请日：2011-08-05
申请人： Bernard Ruchet , Normand Cyr
发明人： Bernard Ruchet , Normand Cyr
IPC分类号： H04B10/08 , H04B10/079
CPC分类号： H04B10/07955 , H04B3/46 , H04B10/079 , H04B10/0793 , H04B10/0795 , H04B10/07953 , H04Q11/0067 , H04Q2011/0083
摘要： 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.
摘要翻译：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。

7. 发明授权

US08364034B2 In-band optical noise measurement using differential polarization response 有权
标题翻译：使用差分极化响应的带内光学噪声测量
公开(公告)号：US08364034B2
公开(公告)日：2013-01-29
申请号：US12859648
申请日：2010-08-19
申请人： Gang He , Normand Cyr , Daniel Gariepy
发明人： Gang He , Normand Cyr , Daniel Gariepy
IPC分类号： H04B10/08
CPC分类号： H04B10/07953
摘要： 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.
摘要翻译：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。

8. 发明申请

US20110293267A1 METHOD AND APPARATUS FOR TESTING TRANSMISSION LINES NORMALLY PROPAGATING OPTICAL SIGNALS 有权
标题翻译：用于测试传输线正常传播光信号的方法和装置
公开(公告)号：US20110293267A1
公开(公告)日：2011-12-01
申请号：US13204350
申请日：2011-08-05
申请人： Bernard Ruchet , Normand Cyr
发明人： Bernard Ruchet , Normand Cyr
IPC分类号： H04B10/08
CPC分类号： H04B10/07955 , H04B3/46 , H04B10/079 , H04B10/0793 , H04B10/0795 , H04B10/07953 , H04Q11/0067 , H04Q2011/0083
摘要： 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.
摘要翻译：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。

9. 发明授权

US07995915B2 Method and apparatus for testing transmission lines normally propagating optical signals 失效
标题翻译：测试传输线正常传播光信号的方法和装置
公开(公告)号：US07995915B2
公开(公告)日：2011-08-09
申请号：US11713735
申请日：2007-03-05
申请人： Bernard Ruchet , Normand Cyr
发明人： Bernard Ruchet , Normand Cyr
IPC分类号： H04B10/08
CPC分类号： H04B10/07955 , H04B3/46 , H04B10/079 , H04B10/0793 , H04B10/0795 , H04B10/07953 , H04Q11/0067 , H04Q2011/0083
摘要： 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.
摘要翻译：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。

10. 发明授权

US07227645B2 Method and apparatus for measuring polarization mode dispersion 有权
标题翻译：用于测量偏振模色散的方法和装置
公开(公告)号：US07227645B2
公开(公告)日：2007-06-05
申请号：US10544638
申请日：2003-02-06
申请人： Normand Cyr
发明人： Normand Cyr
IPC分类号： G01B9/02
CPC分类号： G01J4/04 , G01M11/331 , G01M11/336
摘要： 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.
摘要翻译：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。

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