公开(公告)号：US09287974B2

公开(公告)日：2016-03-15

申请号：US14468890

申请日：2014-08-26

Applicant: EXFO Inc.

Inventor： Bernard Ruchet ,  Normand Cyr

IPC: H04B10/08 ,  H04B10/079 ,  H04B3/46 ,  H04Q11/00

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

Abstract: A 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 of said elements, comprises first and second connector means for connecting the apparatus into the optical transmission path in series therewith, and propagating and measuring means connected between the first and second connector means 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: 一种用于测量在两个元件之间的光传输路径中以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时才发送第一光信号（S1） （S2）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装置，以及连接在第一和第二连接器装置之间的传播和测量装置，用于至少传播第二光信号 （S2），并且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：USD742394S1

公开(公告)日：2015-11-03

申请号：US29468236

申请日：2013-09-27

Applicant: EXFO INC.

Designer： Pascal Bouchard ,  Leo Gagne ,  Karl Poulin

公开(公告)号：USD739277S1

公开(公告)日：2015-09-22

申请号：US29482623

申请日：2014-02-20

Applicant: EXFO INC.

Designer： Alain Martel ,  Pascal Recoura-Massaquant ,  Hicham Maalouf

公开(公告)号：US20150242294A1

公开(公告)日：2015-08-27

申请号：US14558773

申请日：2014-12-03

Applicant: EXFO INC.

Inventor： Dominic LAPIERRE ,  Bruno GIGUERE ,  Sylvain NADEAU ,  Gilles BUTEAU

IPC: G06F11/26 ,  G06F11/07

CPC classification number: G06F11/079 ,  G06F11/2294 ,  H04L43/50

Abstract: A test system and a related method, the system comprising a test processing agent and local test device(s). The test processing agent processes test measurements related to a network-under-test into test results. The test processing agent is decoupled from the network-under-test, e.g., by being reachable through a network communication link distinct from the network-under-test. The local test device comprises a firmware module and a network interface (NI) module. The firmware module depends on external instructions for initiating a test sequence on the network-under-test. The NI module comprises at least one physical port connectable to the network-under-test. The physical port is used for initiating the test sequence. The test processing agent receives the test measurements following the initiation of the test sequence by the local test device and allows access to the test results.

Abstract translation: 测试系统和相关方法，该系统包括测试处理代理和本地测试设备。 测试处理代理将与测试网络相关的测试测量转换为测试结果。 测试处理代理例如通过可以通过不同于被测网络的网络通信链路到达，从测试网络中解耦。 本地测试设备包括固件模块和网络接口（NI）模块。 固件模块取决于在被测网络上启动测试序列的外部指令。 NI模块包括至少一个可连接到被测网络的物理端口。 物理端口用于启动测试序列。 测试处理代理在本地测试设备启动测试序列后接收测试测量，并允许访问测试结果。

公开(公告)号：US20150092043A1

公开(公告)日：2015-04-02

申请号：US14468453

申请日：2014-08-26

Applicant: EXFO INC.

Inventor： Robert BARIBAULT

IPC: G01M11/00 ,  G02B7/00 ,  G02B7/182 ,  H04N5/225

CPC classification number: G02B7/1822 ,  G01M11/31 ,  G02B7/003 ,  H04N5/2252 ,  H04N5/2254

Abstract: A fiber inspection system for inspecting optical-fiber endfaces of a multiple-fiber connector is provided that includes a housing structure, a mating interface fixed relative to the housing structure for interfacing with the multiple-fiber connector, and an imaging assembly. The imaging assembly is enclosed in the housing structure and defines an inspection plane and an image plane, at least a plurality of the optical-fiber endfaces being disposed on the inspection plane, to within a focusing range, when the multiple-fiber connector is mated to the mating interface. The imaging assembly also defines an imaging axis between an inspection point on the inspection plane and a detection point on the image plane, and includes an alignment module disposed between the inspection plane and the image plane and controllable to move the inspection point across the inspection plane for selectively inspecting one or more of the optical-fiber endfaces.

Abstract translation: 提供了一种用于检查多纤维连接器的光纤端面的光纤检查系统，其包括壳体结构，相对于壳体结构固定的配合接口，用于与多光纤连接器接口以及成像组件。 当多光纤连接器配合时，成像组件被封装在壳体结构中并且将至少多个光纤端面设置在检查平面上的检查平面和图像平面处于聚焦范围内 到配合界面。 成像组件还定义了检查平面上的检查点和图像平面上的检测点之间的成像轴，并且包括设置在检查平面和图像平面之间的对准模块，并且可控制以使检查点移动穿过检查平面 用于选择性地检查一个或多个光纤端面。

公开(公告)号：US20140301221A1

公开(公告)日：2014-10-09

申请号：US14212144

申请日：2014-03-14

Applicant: EXFO INC.

Inventor： Sylvain NADEAU ,  Sébastien Prieur ,  Dominic Lapierre

IPC: H04L12/26

CPC classification number: H04L43/50 ,  H04L43/12

Abstract: Method and test device for performing testing in a network conveying a plurality of traffic flows. At the test device, receiving traffic flows through a first interface of the test device on a first segment and forwarding the received plurality of traffic flows towards a second segment of the network through a second interface. At the test device, receiving a test request directed to an address of a test module and, in response to the test request, causing a sequence of proprietary traffic to be injected on the second segment. A reprogrammable test device comprising a networked test module at least in part on a reprogrammable partition of a programmable logic device and a reprogramming module, on a static partition of the programmable logic device, for reprogramming at least a portion of the reprogrammable partition implementing the test module in accordance with reprogramming data received at the test device.

Abstract translation: 用于在传送多个业务流的网络中执行测试的方法和测试设备。 在测试设备处，接收业务流经第一段的测试设备的第一接口，并通过第二接口将接收的多个业务流转发到网络的第二段。 在测试设备处，接收针对测试模块的地址的测试请求，并且响应于测试请求，导致专用流量序列被注入到第二段上。 一种可再编程测试装置，其包括至少部分地在可编程逻辑器件的静态分区上的可编程逻辑器件和重新编程模块的可重新编程分区的网络测试模块，用于重新编程实现测试的可重编程分区的至少一部分 模块根据在测试设备接收到的重新编程数据。

公开(公告)号：USD710222S1

公开(公告)日：2014-08-05

申请号：US29447472

申请日：2013-03-04

Applicant: Exfo Inc.

Designer： Sébastien Nadeau

公开(公告)号：US08787753B2

公开(公告)日：2014-07-22

申请号：US13717113

申请日：2012-12-17

Applicant: Exfo Inc.

Inventor： Daniel Gariepy ,  Gang He ,  Yves Breton

IPC: H04B10/08

CPC classification number: H04B10/07953

Abstract: There is provided a method for determining the in-band noise in agile multichannel Dense Wavelength Division Multiplexing (DWDM) optical systems, where the interchannel noise is not representative of the in-band noise in the optical channel. The method relies on the analysis of two observations of the same input optical signal. In the two observations, the linear relationship between the optical signal contribution and the optical noise contribution (e.g. the observed OSNR) is different, which allows the discrimination of the signal and noise contributions in the input optical signal. In a first approach, the two observations are provided by polarization analysis of the input optical signal. In a second, the input optical signal is obtained using two different integration widths.

Abstract translation: 提供了一种用于确定敏捷多通道密集波分复用（DWDM）光学系统中的带内噪声的方法，其中信道间噪声不代表光信道中的带内噪声。 该方法依赖于对相同输入光信号的两次观察的分析。 在两个观察中，光信号贡献与光噪声贡献（例如观察到的OSNR）之间的线性关系是不同的，这允许在输入光信号中识别信号和噪声贡献。 在第一种方法中，通过输入光信号的偏振分析来提供两个观察结果。 一秒钟，使用两个不同的积分宽度获得输入光信号。

公开(公告)号：US20130163987A1

公开(公告)日：2013-06-27

申请号：US13717113

申请日：2012-12-17

Applicant: EXFO INC.

Inventor： Daniel Gariepy ,  Gang He ,  Yves Breton

IPC: H04B10/08

CPC classification number: H04B10/07953

Abstract: There is provided a method for determining the in-band noise in agile multichannel Dense Wavelength Division Multiplexing (DWDM) optical systems, where the interchannel noise is not representative of the in-band noise in the optical channel. The method relies on the analysis of two observations of the same input optical signal. In the two observations, the linear relationship between the optical signal contribution and the optical noise contribution (e.g. the observed OSNR) is different, which allows the discrimination of the signal and noise contributions in the input optical signal. In a first approach, the two observations are provided by polarization analysis of the input optical signal. In a second, the input optical signal is obtained using two different integration widths.

Abstract translation: 提供了一种用于确定敏捷多通道密集波分复用（DWDM）光学系统中的带内噪声的方法，其中信道间噪声不代表光信道中的带内噪声。 该方法依赖于对相同输入光信号的两次观察的分析。 在两个观察中，光信号贡献与光噪声贡献（例如观察到的OSNR）之间的线性关系是不同的，这允许在输入光信号中识别信号和噪声贡献。 在第一种方法中，通过输入光信号的偏振分析来提供两个观察结果。 一秒钟，使用两个不同的积分宽度获得输入光信号。