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公开(公告)号：US12095500B2
公开(公告)日：2024-09-17
申请号：US18224682
申请日：2023-07-21
Applicant: Panduit Corp.
Inventor： Jose M. Castro , Richard J. Pimpinella , Bulent Kose , Brett Lane , Yu Huang , Asher S. Novick
IPC: H04B10/073 , G01M11/00 , H04B10/079 , H04B10/2581
CPC classification number: H04B10/0731 , G01M11/338 , H04B10/07951 , H04B10/2581
Abstract: Methods for estimating the Effective Modal Bandwidth (EMB) of laser optimized Multimode Fiber (MMF) at a specified wavelength, λS, based on the measured EMB at a first reference measurement wavelength, λM. In these methods the Differential Mode Delay (DMD) of a MMF is measured and the Effective Modal Bandwidth (EMB) is computed at a first measurement wavelength. By extracting signal features such as centroids, peak power, pulse widths, and skews, as described in this disclosure, the EMB can be estimated at a second specified wavelength with different degrees of accuracy. The first method estimates the EMB at the second specified wavelength based on measurements at the reference wavelength. The second method predicts if the EMB at the second specified wavelength is equal or greater than a specified bandwidth limit.
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公开(公告)号：US12034476B2
公开(公告)日：2024-07-09
申请号：US17559659
申请日：2021-12-22
Applicant: Panduit Corp.
Inventor： Jose M. Castro , Richard J. Pimpinella , Bulent Kose , Yu Huang , Fei Jia
IPC: H04B10/077 , H04B10/071 , H04B10/073 , H04B10/2581
CPC classification number: H04B10/0775 , H04B10/071 , H04B10/073 , H04B10/2581
Abstract: A test apparatus has at least one optical source, a high-speed photodetector, a microcontroller or processor, and electrical circuitry to power and drive the at least one optical source, photodetector, and microcontroller or processor and for measuring the frequency response of a multimode optical fiber under test. The test apparatus can utilize an optical pulse waveform with a light adapter to measure of the channel under test. It can also uses a correction method to de-embed a chromatic bandwidth of the source from the encircled flux modal chromatic bandwidth. The correction method can use correction functions obtained for different type of VCSELs to estimate the optical channel bandwith when used with VCSEL transceivers.
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公开(公告)号：US20240004128A1
公开(公告)日：2024-01-04
申请号：US18369947
申请日：2023-09-19
Applicant: Panduit Corp
Inventor： Richard J. Pimpinella , Jose M. Castro , Asher S. Novick , Yu Huang , Bulent Kose
IPC: G02B6/028 , H04B10/69 , G01S7/481 , G01S7/4912 , H01S5/183
CPC classification number: G02B6/0288 , H04B10/691 , G01S7/4818 , G01S7/4917 , H01S5/183 , G02B2006/12121
Abstract: A test apparatus has at least one optical source, a high-speed photodetector, a microcontroller or processor, and electrical circuitry to power and drive the optical source, high-speed photodetector, and microcontroller or processor. The apparatus measures the frequency response and optical path length of a multimode optical fiber under test, utilizes a reference VCSEL spatial spectral launch condition and modal-chromatic dispersion interaction data to estimate the channels total modal-chromatic bandwidth of the fiber under test, and computes and presents the estimated maximum data rate the fiber under test can support.
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公开(公告)号：US11852871B2
公开(公告)日：2023-12-26
申请号：US17736278
申请日：2022-05-04
Applicant: Panduit Corp.
Inventor： Richard J. Pimpinella , Jose M. Castro
IPC: G02B6/38
CPC classification number: G02B6/3821 , G02B6/3831 , G02B6/3863 , G02B6/3877
Abstract: An optical fiber connector ferrule assembly has a ferrule holder and a ferrule partially within the ferrule holder. The ferrule holder has a keying feature for setting the angular orientation of the ferrule assembly within a connector housing. The ferrule includes at least one stand-off feature on the end face of the ferrule for maintaining a controlled air gap spacing when mated to a second compatible ferrule assembly.
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公开(公告)号：US11768327B2
公开(公告)日：2023-09-26
申请号：US17942430
申请日：2022-09-12
Applicant: Panduit Corp.
Inventor： Richard J. Pimpinella , Jose M. Castro , Asher S. Novick , Yu Huang , Bulent Kose
CPC classification number: G02B6/0288 , G01S7/4818 , G01S7/4917 , H01S5/183 , H04B10/691 , G02B2006/12121
Abstract: A test apparatus has at least one optical source, a high-speed photodetector, a microcontroller or processor, and electrical circuitry to power and drive the optical source, high-speed photodetector, and microcontroller or processor. The apparatus measures the frequency response and optical path length of a multimode optical fiber under test, utilizes a reference VCSEL spatial spectral launch condition and modal-chromatic dispersion interaction data to estimate the channels total modal-chromatic bandwidth of the fiber under test, and computes and presents the estimated maximum data rate the fiber under test can support.
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Patent Agency Ranking
公开(公告)号：US20230155681A1
公开(公告)日：2023-05-18
申请号：US17987368
申请日：2022-11-15
Applicant: Panduit Corp.
Inventor： Richard J. Pimpinella , Jose M. Castro
IPC: H04B10/2525 , G01M11/00 , H04B10/2581
CPC classification number: H04B10/2525 , G01M11/30 , H04B10/2581
Abstract: A method for determining if a graded-index glass optical multimode fiber has a refractive index profile that will compensate modal dispersion with chromatic dispersion when used in an optical channel having a multimode vertical cavity surface emitting laser has at least two weighting functions. The functions are used to compute the relative mode group delays over two radial offset regions within the core of the optical fiber. The peak group delay of the of the higher-order fiber mode distribution is less than the peak group delay of the lower-order mode distribution.
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公开(公告)号：US20220057571A1
公开(公告)日：2022-02-24
申请号：US17519829
申请日：2021-11-05
Applicant: Panduit Corp.
Inventor： Richard J. Pimpinella , Gaston E. Tudury
IPC: G02B6/028
Abstract: A graded index multimode fiber and method of producing the graded index multimode fiber utilize a technique of reducing an index profile of the core of the multimode fiber below a standard parabolic index profile. This can be done by changing dopant concentrations in the fiber core over the radius of the fiber core. The result is a multimode fiber having differential mode delay characteristics that are intentionally not minimized. The index profile can be reduced below the standard parabolic index profile over the entire radius of the core, or only for radii above a specified radius.
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公开(公告)号：US20210297152A1
公开(公告)日：2021-09-23
申请号：US17161116
申请日：2021-01-28
Applicant: Panduit Corp.
Inventor： Jose M. Castro , Richard J. Pimpinella , Bulent Kose , Brett Lane , Yu Huang , Asher S. Novick
IPC: H04B10/073 , H04B10/2581
Abstract: Methods for estimating the Effective Modal Bandwidth (EMB) of laser optimized Multimode Fiber (MMF) at a specified wavelength, λS, based on the measured EMB at a first reference measurement wavelength, λM. In these methods the Differential Mode Delay (DMD) of a MMF is measured and the Effective Modal Bandwidth (EMB) is computed at a first measurement wavelength. By extracting signal features such as centroids, peak power, pulse widths, and skews, as described in this disclosure, the EMB can be estimated at a second specified wavelength with different degrees of accuracy. The first method estimates the EMB at the second specified wavelength based on measurements at the reference wavelength. The second method predicts if the EMB at the second specified wavelength is equal or greater than a specified bandwidth limit.
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公开(公告)号：US10996137B2
公开(公告)日：2021-05-04
申请号：US16725157
申请日：2019-12-23
Applicant: Panduit Corp.
Inventor： Jose M. Castro , Richard J. Pimpinella , Yu Huang , Bulent Kose , Asher S. Novick
Abstract: Examples disclosed herein illustrate systems and methods to determine and evaluate the quality of mechanical splices of optical fibers using insertion loss estimation. In at least some of the disclosed systems and methods, an optical fiber termination system may include a reference fiber coupling a light source and a stub fiber of a fiber optic connector, a digital camera sensor and lens to capture images of scattered light emanating from a portion of the fiber optic connector and a portion of the reference fiber both in a field of view (FOV) of the digital camera sensor, and a processor. The processor may analyze digital images of scatter light emitted from at least a portion of the fiber optic connector and the reference fiber to estimate insertion loss at the fiber optic connector.
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公开(公告)号：US20200174183A1
公开(公告)日：2020-06-04
申请号：US16693980
申请日：2019-11-25
Applicant: Panduit Corp.
Inventor： Richard J. Pimpinella , Jose M. Castro , Asher S. Novick , Yu Huang , Bulent Kose
Abstract: A test apparatus has at least one optical source, a high-speed photodetector, a microcontroller or processor, and electrical circuitry to power and drive the optical source, high-speed photodetector, and microcontroller or processor. The apparatus measures the frequency response and optical path length of a multimode optical fiber under test, utilizes a reference VCSEL spatial spectral launch condition and modal-chromatic dispersion interaction data to estimate the channels total modal-chromatic bandwidth of the fiber under test, and computes and presents the estimated maximum data rate the fiber under test can support.
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