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Patent Agency Ranking
1.发明公开公开(公告)号：US20240110831A1
公开(公告)日：2024-04-04
申请号：US18486355
申请日：2023-10-13
Applicant: VIAVI SOLUTIONS INC.
CPC classification number: G01J3/0224 , G01J3/447
Abstract: A system for a high resolution optical spectrum analyzer (OSA) using various optical configurations to reduce polarization dependent loss (PDL) is disclosed. The system may include a birefringent element to receive an input optical beam. The birefringent element may then split the optical beam into at least two exit beams. The system may also include an optical configuration comprising at least one optical element. The optical configuration may receive the at least two exit beams from the birefringent element and transform at least one of the two exit beams using the at least one optical element to provide two parallel beams with parallel polarizations. The optical configuration may then output the two parallel beams with parallel polarizations to a downstream optical element, such as a diffraction grating, or other optical element.
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2.发明申请公开(公告)号：US20250146902A1
公开(公告)日：2025-05-08
申请号：US18504540
申请日：2023-11-08
Applicant: VIAVI SOLUTIONS INC.
Inventor： Joshua Benjamin Julius PHILIPSON , Kevin CASSADY , Nicklos Joseph BULITKA , Christopher Russell WAGNER , Christian Richard COMTOIS-ARNALDO
Abstract: Systems, methods, and devices for inspection, under a microscope, of end connectors of fiber optic cables are provided. In one aspect, a light ring including a circular array of light sources provides darkfield illumination to an end connector being inspected under a microscope. Each of the light sources may be lit in series and the resulting shadows may be used to identify dirt on the end connector, as well as to determine whether any dirt identified on the end connector can be cleaned off. In another aspect, a light ring combined with a redirection ring (e.g., a reflector and/or refractor ring) may provide darkfield illumination. In yet another aspect, a series of images may be captured and analyzed to automatically identify dirt on the end connector, as well as to determine whether any identified dirt can be cleaned off.
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3.发明申请公开(公告)号：US20220381609A1
公开(公告)日：2022-12-01
申请号：US17334132
申请日：2021-05-28
Applicant: VIAVI SOLUTIONS INC.
Abstract: A system for a high resolution optical spectrum analyzer (OSA) using various optical configurations to reduce polarization dependent loss (PDL) is disclosed. The system may include a birefringent element to receive an input optical beam. The birefringent element may then split the optical beam into at least two exit beams. The system may also include an optical configuration comprising at least one optical element. The optical configuration may receive the at least two exit beams from the birefringent element and transform at least one of the two exit beams using the at least one optical element to provide two parallel beams with parallel polarizations. The optical configuration may then output the two parallel beams with parallel polarizations to a downstream optical element, such as a diffraction grating, or other optical element.
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公开(公告)号：US20220390322A1
公开(公告)日：2022-12-08
申请号：US17341261
申请日：2021-06-07
Applicant: VIAVI SOLUTIONS INC.
Inventor： Luis Andre Neves Paiva FERNANDES , Robert Matthew ADAMS , Christopher Russell WAGNER , Joshua Benjamin Julius PHILIPSON , Eugene CHAN
Abstract: According to examples, a system for measuring polarization dependent loss (PDL) for a device-under-test (DUT) may include a tunable laser, a polarization element and a power meter. The tunable laser may emit an optical signal to sweep across an optical band at a constant rate. The polarization element may scramble polarizations states of the optical signal emitted from the tunable laser. The power meter may take power measurements associated with the optical signal emitted from the tunable laser, wherein the power measurements from the power meter are used to determine a maximum insertion loss (IL) and a minimum insertion loss (IL) associated with the device-under-test (DUT). An average insertion loss (IL) and a polarization dependent loss (PDL) for the device-under-test (DUT) may be calculated based on the maximum insertion loss (IL) and the minimum insertion loss (IL) associated with the device-under-test (DUT).
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公开(公告)号：US20220276444A1
公开(公告)日：2022-09-01
申请号：US17187348
申请日：2021-02-26
Applicant: VIAVI SOLUTIONS INC.
Inventor： Robert Matthew ADAMS , Joshua Benjamin Julius PHILIPSON
Abstract: An apparatus for providing multicore fiber (OCF) optical switching is disclosed. The apparatus may include an input fiber to receive an optical signal from an optical source. The apparatus may also include an output fiber to receive the optical signal from the input fiber. The apparatus may further include an optical switch element to provide optical switching between the input fiber and the output fiber. In some examples, at least one of the input fiber and the output fiber may be a multicore fiber (MCF), and the optical switching may be performed between at least one core of the input fiber and the output fiber. In some examples, the optical switch element may provide optical switching using a multicore fiber (MCF) optical switching technique, such as a lens offset technique, a rotation-based technique, a tip-tilt technique, or an orientable optical element technique.
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