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Exfo Inc patents


Recent patent applications related to Exfo Inc. Exfo Inc is listed as an Agent/Assignee. Note: Exfo Inc may have other listings under different names/spellings. We're not affiliated with Exfo Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "E" | Exfo Inc-related inventors


Multimode launch systems for use in performing an otdr measurement on a multi-fiber array dut and method of performing same

A multimode launch system to be connected to an optical time-domain reflectometer (otdr) for use in performing at least one otdr measurement on a multi-fiber array device under test (dut), the multimode launch system comprising: an optical switch being connectable to the otdr during use; a launch array device having an end being connectable to the optical switch and another end being connectable to the multi-fiber array dut during use, the launch array device having a plurality of multimode launch optical fibers each having at least one first guidance parameter being smaller than a corresponding one of at least one second guidance parameter of at least one multimode optical fiber of the optical switch; and a multi-fiber mode conditioner along the launch array device for inducing a preferential attenuation of higher-order optical modes of test light propagated into the multi-fiber array dut during use.. . ... Exfo Inc

Optical power measurement in a passive optical network

A device and method for optical power measurement in an optical network supporting upstream and downstream signal propagation along an optical transmission path. The device includes an upstream wavelength analyzer receiving upstream light extracted from the optical transmission path and configured to determine an upstream spectral characteristic of the extracted upstream light. ... Exfo Inc

System and method of communicating with and controlling a test device

System and method for communicating with and controlling a test device. Receiving user input via a system gui to start a test. ... Exfo Inc

Testing fiber arrangement in multi-fiber cables

There is provided a system and a test instrument for identifying or verifying the fiber arrangement and/or the cable type of multi-fiber array cables (such as mpo cables) which employs a light source and a polarity detector at the near end of the multi-fiber array cable under test, and a loopback device at the far end. The polarity detector comprises light presence detectors used to detect which one of the optical fibers of the multi-fiber array cable returns light looped back at the far end and thereby determine the fiber arrangement and/or the cable type of the multi-fiber array cable.. ... Exfo Inc

Optical power measurement in a passive optical network

A passive optical network (pon) device and method for optical power measurement along an optical transmission path supporting bidirectional propagation of downstream light and upstream light between two network elements of a pon is provided. The device includes an optical power splitter assembly extracting respective portions of the upstream and downstream light, and an upstream wavelength analyzer determining, from the extracted upstream light, an upstream spectral characteristic of the upstream light. ... Exfo Inc

Multimode launch systems for use in performing an otdr measurement on a multi-fiber array dut and method of performing same

A multimode launch system to be connected to an optical time-domain reflectometer (otdr) for use in performing at least one otdr measurement on a multi-fiber array device under test (dut), the multimode launch system comprising: an optical switch being connectable to the otdr during use; a launch array device having an end being connectable to the optical switch and another end being connectable to the multi-fiber array dut during use, the launch array device having a plurality of multimode launch optical fibers each having at least one first guidance parameter being smaller than a corresponding one of at least one second guidance parameter of at least one multimode optical fiber of the optical switch; and a multi-fiber mode conditioner along the launch array device for inducing a preferential attenuation of higher-order optical modes of test light propagated into the multi-fiber array dut during use.. . ... Exfo Inc

Multiple-fiber connector inspection

An inspection system for inspecting a multiple-fiber connector is provided. The inspection system includes a microscope probe and a probe tip configured to provide an optical path between the microscope probe and the multiple-fiber connector. ... Exfo Inc








ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009



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