公开(公告)号：US20240077678A1

公开(公告)日：2024-03-07

申请号：US17903401

申请日：2022-09-06

Applicant: VIAVI SOLUTIONS INC.

Inventor： Driss TOUAHRI ,  Joshua Benjamin Julius Philipson ,  Christopher Russell Wagner ,  Luis Andre Neves Paiva Fernandes ,  Robert Matthew Adams

IPC: G02B6/26 ,  G02B6/27 ,  G02B6/35

CPC classification number: G02B6/266 ,  G02B6/2726 ,  G02B6/3574

Abstract: A variable optical attenuator (VOA) may include an input collimator with an input fiber connected on one side and an output collimator with an output fiber connected on one side, where the collimators are on a same surface of a VOA enclosure. A retroreflector may receive a light beam from the input collimator and reflect the light beam to the output collimator. The VOA may include an attenuation element positioned between the input collimator and the retroreflector and/or another attenuation element positioned between the retroreflector and the output collimator to provide variable attenuation to the light beam. The attenuation elements may be moved to set an attenuation level by one or more adjustment elements such as a miniature motor. The attenuation element may include a gradient index (GRIN) element, a polarizer, a neutral density filter, or a wavelength tunable filter.

公开(公告)号：US11899193B2

公开(公告)日：2024-02-13

申请号：US17443187

申请日：2021-07-22

Applicant: VIAVI Solutions Inc.

Inventor： Kevin Cassady ,  Jay Gregory Brace ,  Robert Matthew Adams

IPC: G02B21/00 ,  G02B6/38 ,  G02B6/35

CPC classification number: G02B21/0008 ,  G02B6/352 ,  G02B6/3825 ,  G02B6/3826 ,  G02B6/3853

Abstract: A microscope may receive a fiber optic connector via a connector adapter of the microscope, wherein the connector adapter includes an opening and a shaped reflective surface surrounding the opening. The microscope may align a ferrule of the fiber optic connector with the opening of the connector adapter of the microscope, wherein the ferrule includes a ferrule endface. The microscope may transmit light onto the shaped reflective surface and may receive reflected light from the ferrule endface and with a camera of the microscope.

公开(公告)号：US20210148787A1

公开(公告)日：2021-05-20

申请号：US17152512

申请日：2021-01-19

Applicant: VIAVI SOLUTIONS INC.

Inventor： Robert Matthew Adams ,  Joshua Philipson ,  Elias Debs ,  Shauna Peach-Donovan ,  Jeff Graves

IPC: G01M11/00 ,  G02B6/38

Abstract: A fiber-optic interconnection stabilization apparatus for a measurement system is provided. The apparatus may comprise a main body comprising an enclosure and two openings. The enclosure may encase a fiber-optic cable within the main body in an organized manner. The two openings may fit connecting ends of the fiber-optic cable such that the connecting ends of may be exposed in order to connect two modular components of a measurement system and form a closed measurement loop. The main body, when in a closed configuration, may stabilizes the fiber-optic cable encased within from external conditions, such as mechanical, thermal, or other environmental conditions that may affect measurements.

公开(公告)号：US11002632B2

公开(公告)日：2021-05-11

申请号：US16457269

申请日：2019-06-28

Applicant: VIAVI SOLUTIONS INC.

Inventor： Robert Matthew Adams ,  Joshua Benjamin Julius Philipson

IPC: G01M11/00 ,  G01J4/04 ,  G02B6/42

Abstract: A system for measuring a polarization extinction ratio (PER) using a reference master test jumper (MTJ) is disclosed. The system may include an optical source to transmit an optical signal via an optical fiber. The system may also include a device under test (DUT) communicatively coupled to the optical source via the optical fiber to receive the optical signal from the optical source. The system may also include an optical measurement component communicatively coupled to the device under test (DUT). In some examples, the optical fiber may be configured or initialized to be a reference master test jumper (MTJ) that minimizes inherent polarization extinction ratio (PER) of the optical fiber when measuring a polarization extinction ratio (PER) during a measurement action.

公开(公告)号：US10928274B2

公开(公告)日：2021-02-23

申请号：US15996136

申请日：2018-06-01

Applicant: VIAVI SOLUTIONS INC.

Inventor： Robert Matthew Adams ,  Joshua Philipson ,  Elias Debs ,  Shauna Peach-Donovan ,  Jeff Graves

IPC: G02B6/38 ,  G01M11/00

Abstract: A fiber-optic interconnection stabilization apparatus for a measurement system is provided. The apparatus may comprise a main body comprising an enclosure and two openings. The enclosure may encase a fiber-optic cable within the main body in an organized manner. The two openings may fit connecting ends of the fiber-optic cable such that the connecting ends of may be exposed in order to connect two modular components of a measurement system and form a closed measurement loop. The main body, when in a closed configuration, may stabilizes the fiber-optic cable encased within from external conditions, such as mechanical, thermal, or other environmental conditions that may affect measurements.