公开(公告)号：US20250076152A1

公开(公告)日：2025-03-06

申请号：US18808379

申请日：2024-08-19

Applicant: EXFO Inc.

Inventor： Stephane PERRON

IPC: G01M11/00

Abstract: Described herein are systems and methods for testing connectivity of strands of a fiber optic cable, the ends of which terminate at a first site and a second site. A method, according to one implementation, includes the step of coordinating the first and second sites to generate a signal at a first end of the strands and to detect presence of the signal at a second end of the strands. The method also includes receiving confirmation information from the first and second sites pertaining to the signal being generated and detected. Also, the method includes the steps of utilizing the confirmation information to match the first end of the strands with the second end of the strands for determining fiber strand connectivity between the first site and the second site and then creating a connectivity map showing the fiber strand connectivity.

公开(公告)号：US20240385076A1

公开(公告)日：2024-11-21

申请号：US18664669

申请日：2024-05-15

Applicant: EXFO Inc.

Inventor： Mario L’Heureux ,  Michel Leclerc

IPC: G01M11/00

Abstract: Systems, methods, and devices for testing for faults in a fiber optic cable are provided. A Visual Fault Locator (VFL), according to one implementation, includes an output port configured for connection with an optical fiber to be tested. The VFL also includes a variable light source configured to emit visible light at different power levels from the output port. For example, the different power levels may correspond with different light intensity levels. In some implementations, the VFL may further include a gain control device connected to the variable light source, whereby the gain control device may be configured to control the power of the variable light source to enable the variable light source to emit the visible light at multiple power levels.

公开(公告)号：US11956513B2

公开(公告)日：2024-04-09

申请号：US17549271

申请日：2021-12-13

Applicant: EXFO Inc.

Inventor： Sylvain Nadeau

IPC: H04N21/647 ,  H04N21/25

CPC classification number: H04N21/64738 ,  H04N21/251

Abstract: The present disclosure includes adjusting the QoE measurement obtained from a testing Content Delivery Network (CDN) entity to reflect accurately the QoE that would have been obtained from a reference video source from a content provider. A method includes performing a Quality of Experience, QoE, measurement from a first content source and adjusting the QoE measurement to reflect an estimate of a QoE measurement to a second content source. In this manner, it is possible to perform QoE measurements for an Over-the-Top, OTT, content provider without violating user policies that prohibit repeated requests.

公开(公告)号：US11906389B1

公开(公告)日：2024-02-20

申请号：US17660077

申请日：2022-04-21

Applicant: EXFO Inc.

Inventor： Stephane Perron ,  Michel Leclerc

IPC: G01M11/00 ,  H04B10/071 ,  G02B6/255

CPC classification number: G01M11/3109 ,  H04B10/071 ,  G02B6/255

Abstract: There is provided a system and a method for assisting a technician in fiber optic cable splices and comprising a pair of test units including an OTDR, an optical switch, a tone generator and a tone detector to automate the splicing process and testing. The test units may be in communication with a wireless portable device used by the splicing technician and controlled therefrom. In one embodiment, the test units are driven by a test orchestrator application (e.g., server-based) to switch fibers, perform continuity tests and/or splice quality tests, triggered by the technician's portable device.

公开(公告)号：USD960734S1

公开(公告)日：2022-08-16

申请号：US29761050

申请日：2020-12-07

Applicant: EXFO Inc.

Designer： Olivier Patry

公开(公告)号：USD960733S1

公开(公告)日：2022-08-16

申请号：US29761042

申请日：2020-12-07

Applicant: EXFO Inc.

Designer： Olivier Patry

公开(公告)号：USD955244S1

公开(公告)日：2022-06-21

申请号：US29749181

申请日：2020-09-03

Applicant: EXFO Inc.

Designer： Michael Simard ,  Manuel Leveille ,  Olivier Patry

公开(公告)号：US20220170816A1

公开(公告)日：2022-06-02

申请号：US17455229

申请日：2021-11-17

Applicant: EXFO Inc.

Inventor： Olivier COTE ,  Aymen SALAHDDINE ,  Mario L'HEUREUX

IPC: G01M11/00 ,  G06K9/78 ,  G06T7/00 ,  G02B21/02 ,  G02B6/36

Abstract: There is provided an optical-fiber connector endface inspection microscope system for inspecting an endface of an optical-fiber connector. It comprises one or more image detector for capturing at least one image of the endface to be inspected; an objective lens system comprising a focusing lens for adjusting a focus of the objective lens system on the image detector and a fixed relay lens; a main housing structure enclosing the image detector and the focusing lens; and at least one interchangeable optical head releasably connectable to the main housing structure and enclosing the fixed relay lens, wherein the optical head is releasably connectable to an adapter tip for interfacing with the optical-fiber connector to be inspected.

公开(公告)号：US20220170815A1

公开(公告)日：2022-06-02

申请号：US17455225

申请日：2021-11-17

Applicant: EXFO Inc.

Inventor： Nicolas CARON ,  Olivier COTE ,  Mario L'HEUREUX

IPC: G01M11/00 ,  G06T7/00 ,  H04N5/235 ,  H04N5/225 ,  G02B6/38 ,  G02B21/06 ,  G02B21/36

Abstract: There are provided systems and methods for inspecting an endface of an optical-fiber connector using an optical-fiber connector endface inspection microscope system comprising one or more image detectors for capturing images over the whole endface to be inspected. An illumination system comprises two or more illumination sources disposed so as to illuminate respective regions over the connector endface and to prevent dark zones in the capture images. The illumination sources are activated in sequence, such that adjacent sources are never activated at the same time, and corresponding images captured in sequence, i.e., one after the other. In this case, it is also possible to activate the illumination sources in sequence, such that adjacent sources are never activated at the same time. Activating the illumination sources separately eliminates the illumination overlap and so eliminates the double image artifact. This allows for a more uniformly lit image with less dark spots.

公开(公告)号：US11340137B2

公开(公告)日：2022-05-24

申请号：US16722901

申请日：2019-12-20

Applicant: EXFO Inc.

Inventor： Michel Leclerc ,  Mario L'Heureux ,  Stephane Perron

IPC: G01M11/00 ,  G02B6/38 ,  G01D5/353 ,  G01D5/34

Abstract: There are provided techniques for characterizing and testing a cable routing connection configuration connection arrangement comprising a plurality of optical fiber links connected between at least a first connection device at a first end and a second multi-fiber connection device at a second end. Test light is injected into one or more of the optical fiber links via corresponding optical fiber ports of the first connection device. At least one image of the second multi-fiber connection device is captured. Test light exiting the optical fiber link(s) through optical fiber port(s) of the second multi-fiber connection device is imaged as light spot(s) in the captured image. Positions on the second multi-fiber connection device that corresponds to the optical fiber port(s) are determined based on a pattern of the light spot(s) in the captured image. In some implementations, the provided techniques allow detection or verification of cable routing connection configurations at multi-fiber distribution panels.