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71. 发明授权

US08768180B2 All-optical, phase sensitive optical signal sampling 有权
标题翻译：全光学，相位敏感光信号采样
公开(公告)号：US08768180B2
公开(公告)日：2014-07-01
申请号：US13201576
申请日：2010-02-23
申请人： Mathias Westlund , Mats Skold , Henrik Sunnerud , Peter Andrekson , Bernard Ruchet
发明人： Mathias Westlund , Mats Skold , Henrik Sunnerud , Peter Andrekson , Bernard Ruchet
IPC分类号： H04B10/06 , H04B10/00
CPC分类号： H04B10/64 , H04B10/60
摘要： An optical sampling arrangement for high-speed measurement of the time-varying electric field of an optical input signal utilizes coherent mixing of the optical input signal with a reference laser source in a phase-diverse optical hybrid solution, followed by optical sampling of the coherently-mixed fields at the output of the optical hybrid. The generated streams of optical samples are then detected and signal processed in order to reconstruct a sampled version of the electric field of the original optical input signal.
摘要翻译：用于光学输入信号的时变电场的高速测量的光学采样装置利用相位多光学混合解决方案中的光输入信号与参考激光源的相干混合，随后对相干光进行光学采样混合的混合磁场输出。然后产生的光学样本流被检测和信号处理，以便重构原始光输入信号的电场的采样版本。

72. 发明申请

US20140146312A1 OPTICAL REFLECTOMETER WITH LOSS AND/OR REFLECTANCE PROFILE VIEW 有权
标题翻译：具有损失和/或反射型材视图的光学反射计
公开(公告)号：US20140146312A1
公开(公告)日：2014-05-29
申请号：US14092227
申请日：2013-11-27
申请人： EXFO Inc.
发明人： Stephane Perron , Michel Leclerc
IPC分类号： G01M11/00
CPC分类号： G01M11/3145 , G01M11/3118
摘要： There is provided an optical reflectometric method and system for characterizing an optical fiber link, wherein events in the fiber optic link under test are identified and values of parameters characterizing the events (e.g. location, insertion loss and reflectance) are extracted from an analysis of one or more reflectometric measurements performed on the optical fiber link. A loss profile and/or a reflectance profile are then constructed. The loss and reflectance profiles are typically displayed on screen or otherwise graphically represented for an operator to be able to appreciate the measurement results at a single glance.
摘要翻译：提供了用于表征光纤链路的光学反射测量方法和系统，其中识别被测光纤链路中的事件，并且从一个分析中提取表征事件（例如位置，插入损耗和反射率）的参数值或更多的反射测量在光纤链路上执行。然后构造损耗曲线和/或反射率分布。损耗和反射率分布通常显示在屏幕上，或以其它方式表示为操作者，以便能够一目了然地了解测量结果。

73. 发明授权

US08576389B2 Multiple-acquisition OTDR method and device 有权
标题翻译：多采集OTDR方法和装置
公开(公告)号：US08576389B2
公开(公告)日：2013-11-05
申请号：US13699982
申请日：2011-05-26
申请人： Stéphane Perron , Michel Leblanc
发明人： Stéphane Perron , Michel Leblanc
IPC分类号： G01N21/00
CPC分类号： H04B10/071 , G01M11/3127 , G01M11/3136 , G01M11/3145
摘要： An OTDR device and method for characterizing one or more events in an optical fiber link are provided. A plurality of light acquisitions is performed. For each light acquisition, test light pulses are propagated in the optical fiber link and the corresponding return light signals from the optical fiber link are detected. The light acquisitions are performed under different acquisition conditions, for example using different pulsewidths or wavelengths. Parameters characterizing the event are derived using the detected return signal from at least two of the plurality of light acquisitions.
摘要翻译：提供了用于表征光纤链路中的一个或多个事件的OTDR设备和方法。进行多次光采集。对于每个光采集，测试光脉冲在光纤链路中传播，并且检测来自光纤链路的相应返回光信号。光采集在不同的采集条件下进行，例如使用不同的脉冲宽度或波长。使用来自多个光采集中的至少两个的检测到的返回信号导出表征事件的参数。

74. 发明申请

US20130088718A1 MULTIPLE-ACQUISITION OTDR METHOD AND DEVICE 有权
标题翻译：多收购OTDR方法和设备
公开(公告)号：US20130088718A1
公开(公告)日：2013-04-11
申请号：US13699982
申请日：2011-05-26
申请人： Stéphane Perron , Michel Leblanc
发明人： Stéphane Perron , Michel Leblanc
IPC分类号： G01M11/00
CPC分类号： H04B10/071 , G01M11/3127 , G01M11/3136 , G01M11/3145
摘要： An OTDR device and method for characterizing one or more events in an optical fiber link are provided. A plurality of light acquisitions is performed. For each light acquisition, test light pulses are propagated in the optical fiber link and the corresponding return light signals from the optical fiber link are detected. The light acquisitions are performed under different acquisition conditions, for example using different pulsewidths or wavelengths. Parameters characterizing the event are derived using the detected return signal from at least two of the plurality of light acquisitions.
摘要翻译：提供了用于表征光纤链路中的一个或多个事件的OTDR设备和方法。进行多次光采集。对于每个光采集，测试光脉冲在光纤链路中传播，并且检测来自光纤链路的相应返回光信号。光采集在不同的采集条件下进行，例如使用不同的脉冲宽度或波长。使用来自多个光采集中的至少两个的检测到的返回信号导出表征事件的参数。

75. 发明授权

US08373852B2 Optical waveguide rotator mechanism, birefringence-inducing element and polarization control devices employing either or both and methods of using same 有权
公开(公告)号：US08373852B2
公开(公告)日：2013-02-12
申请号：US12292778
申请日：2008-11-26
申请人： Bernard Ruchet , Eric Girard , Gang He
发明人： Bernard Ruchet , Eric Girard , Gang He
IPC分类号： G01N21/00 , G01J4/00 , G02B5/30 , G02B27/28 , G02B6/00
CPC分类号： G02B6/2766 , G02B6/274 , G02B6/3859 , G02F1/0134 , G02F2202/40
摘要： A fiber rotator mechanism for rotating a portion of an optical waveguide, specifically an optical fiber, about a longitudinal axis thereof comprises a motor having a tubular rotor through which the fiber extends, in use, and to which the fiber is secured, directly or indirectly. An optical fiber may be secured by means of a device which also compresses the optical fiber to induce a required birefringence, conveniently by means of a spring-loaded clamping device or a ferrule of shape memory material.

76. 发明申请

US20120201533A1 Reference-Based In-Band OSNR Measurement on Polarization-Multiplexed Signals 有权
标题翻译：极化复用信号的基于参考的带内OSNR测量
公开(公告)号：US20120201533A1
公开(公告)日：2012-08-09
申请号：US13501708
申请日：2011-02-14
申请人： Daniel Gariepy , Gang He
发明人： Daniel Gariepy , Gang He
IPC分类号： H04B10/08 , H04J14/06
CPC分类号： H04B10/07953
摘要： There is provided a method for determining an in-band noise parameter, such as the Optical Signal-to-Noise Ratio (OSNR), on an optical signal-under-test (SUT) propagating along an optical communication link and comprising a data-carrying signal contribution of any arbitrary degree of polarization and a noise contribution. A spectral shape trace of signal contribution in the SUT is estimated using a reference optical spectrum trace of a reference signal which comprises a signal contribution that is spectrally representative of the signal contribution of the SUT and a noise contribution which is at least approximately known. The signal contribution is mathematically discriminated from said noise contribution in the SUT using the spectral shape trace and the test optical spectrum trace. The in-band noise parameter is then determined at least from the mathematically discriminated noise contribution.
摘要翻译：提供了一种用于在沿着光通信链路传播的光信号在测试（SUT）上确定带内噪声参数（诸如光信噪比（OSNR））的方法，并且包括数据 - 携带任何任意极化度和噪声贡献的信号贡献。使用参考信号的参考光谱轨迹估计SUT中的信号贡献的光谱形状轨迹，该参考信号包括频谱上代表SUT的信号贡献的信号贡献和至少近似已知的噪声贡献。信号贡献在数学上与使用光谱形状轨迹和测试光谱轨迹的SUT中的噪声贡献进行区分。至少从数学识别的噪声贡献中确定带内噪声参数。

77. 发明申请

US20120134667A1 All-Optical, Phase Sensitive Optical Signal Sampling 有权
标题翻译：全光学，相位敏感光信号采样
公开(公告)号：US20120134667A1
公开(公告)日：2012-05-31
申请号：US13201576
申请日：2010-02-23
申请人： Mathias Westlund , Mats Skold , Henrik Sunnerud , Peter Andrekson , Bernard Ruchet
发明人： Mathias Westlund , Mats Skold , Henrik Sunnerud , Peter Andrekson , Bernard Ruchet
IPC分类号： H04B10/08
CPC分类号： H04B10/64 , H04B10/60
摘要： An optical sampling arrangement for high-speed measurement of the time-varying electric field of an optical input signal utilizes coherent mixing of the optical input signal with a reference laser source in a phase-diverse optical hybrid solution, followed by optical sampling of the coherently-mixed fields at the output of the optical hybrid. The generated streams of optical samples are then detected and signal processed in order to reconstruct a sampled version of the electric field of the original optical input signal.
摘要翻译：用于光学输入信号的时变电场的高速测量的光学采样装置利用相位多光学混合解决方案中的光输入信号与参考激光源的相干混合，随后对相干光进行光学采样混合的混合磁场输出。然后产生的光学样本流被检测和信号处理，以便重构原始光输入信号的电场的采样版本。

78. 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。

79. 发明申请

US20110182573A1 All-Optical Balanced Detection System 有权
标题翻译：全光均衡检测系统
公开(公告)号：US20110182573A1
公开(公告)日：2011-07-28
申请号：US13119220
申请日：2009-09-17
申请人： Mathias Westlund , Peter Andrekson , Henrik Sunnerud , Mats Skold
发明人： Mathias Westlund , Peter Andrekson , Henrik Sunnerud , Mats Skold
IPC分类号： H04B10/08 , H04L27/00 , H04B17/00
CPC分类号： H04B10/697 , H04B10/677
摘要： A two-gate sampling system has been designed to perform sampled balanced detection of one or more input signal pairs. The present invention performs simultaneous sampling of both signals in each signal pair followed by digitization and combination of the sample pairs using software. By first sampling the signals and then combining the sampled into the corresponding balanced detected signal it is possible to avoid the bandwidth limitations and impedance problems introduced by traditional balanced detectors and electrical oscilloscopes. In particular, for optical sampling gates very high bandwidth sampling gates can be designed without any impedance issues and hence almost perfect balanced detection reconstruction can be performed for very high speed signals. Balanced detection is becoming more and more important as the new phase modulated optical data signals are introduced to the market, such as e.g. PSK, DPSK, QPSK and DQPSK. The present invention is well suited for analysis of these new types of signals.
摘要翻译：已经设计了两门取样系统来对一个或多个输入信号对进行采样平衡检测。本发明对每个信号对中的两个信号进行同时采样，随后使用软件进行数字化和采样对的组合。通过首先采样信号，然后将采样合并到相应的平衡检测信号中，可以避免传统的平衡检波器和电子示波器引入的带宽限制和阻抗问题。特别地，对于光采样门，可以设计非常高带宽采样门而没有任何阻抗问题，因此可以对非常高速的信号执行几乎完美的平衡检测重建。平衡检测变得越来越重要，因为新的相位调制光数据信号被引入市场，例如， PSK，DPSK，QPSK和DQPSK。本发明非常适用于这些新型信号的分析。

80. 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。

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