公开(公告)号：US10114171B2

公开(公告)日：2018-10-30

申请号：US15470153

申请日：2017-03-27

Applicant: Panduit Corp.

Inventor： Jose M. Castro ,  Richard J. Pimpinella ,  Bulent Kose ,  Brett Lane

IPC: G02B6/028

Abstract: The present invention generally relates to the field of fiber optics, and more particularly, to apparatuses, systems, and methods directed towards improving effective modal bandwidth within a fiber optic communication environment. In an embodiment, a multimode optical fiber in accordance with the present invention comprises a core and cladding material system where the refractive indices of the core and cladding are selected to modify the shape of the profile dispersion parameter, y, as a function of wavelength in such a way that the alpha parameter (α-parameter), which defines the refractive index profile, produces negative relative group delays over a broad range of wavelengths. The new shape of the profile dispersion parameter departs from traditional fibers where the profile dispersion parameter monotonically decreases around the selected wavelength that maximizes the effective modal bandwidth (EMB).

公开(公告)号：US20180267234A1

公开(公告)日：2018-09-20

申请号：US15984563

申请日：2018-05-21

Applicant: Panduit Corp.

Inventor： Richard J. Pimpinella ,  Jose M. Castro ,  Brett Lane ,  Bulent Kose

IPC: G02B6/028

CPC classification number: G02B6/0288 ,  G02B1/10 ,  G02B6/02047 ,  G02B6/02214 ,  G02B6/02261 ,  G02B6/0281

Abstract: The present invention generally relates to the field of fiber optics, and more specifically to optical fibers, methods of manufacturing optical fibers, and methods of classifying optical fibers. In an embodiment, the present invention is a multimode optical fiber which comprises a core and clad material system where the refractive indices of the core and cladding are selected to minimize chromatic dispersion in the 850 nm wavelength window and the refractive index profile is optimized for minimum modal-chromatic dispersion in channels utilizing VCSEL transceivers. Multimode optical fibers according to this embodiment may have increased channel bandwidth.

公开(公告)号：US20250150169A1

公开(公告)日：2025-05-08

申请号：US18504211

申请日：2023-11-08

Applicant: Panduit Corp.

Inventor： Yu Huang ,  Jose M. Castro ,  Bulent Kose

IPC: H04B10/112 ,  G02B6/26 ,  G02B6/42

Abstract: A low-latency free-space optical data communication channel with automatic alignment function has an optical channel, collimators, high reflective screens, and cameras. The optical channel can have two optical lenses designed to facilitate the transmission of an optical signal. The collimators can be integrated with optical fibers and precisely positioned at a focal point of the two optical lenses. Reflective screens, films or tapes encircle both transmitting and receiving lenses. Cameras at each transmitting and receiving terminal are positioned to monitor the optical signal's impact on a lens surface or a high-reflective screen on the opposite side. The cameras use at least one lens to get focused image on a camera sensor and records the optical beam spot impacting the opposite side. Corresponding LED(s) aligned with the lens position on the opposite side allow the computation of the disparity between the optical signal and the lens positioned on the opposite side.

公开(公告)号：US12276840B2

公开(公告)日：2025-04-15

申请号：US17981890

申请日：2022-11-07

Applicant: Panduit Corp.

Inventor： Bulent Kose ,  Jose M. Castro ,  Yu Huang ,  Richard J. Pimpinella

IPC: G02B6/25

Abstract: An air-gap HCF connector termination method and connector assembly for factory and field connector assembly termination for patch cables and trunk cables made from HCF, where in multitude of mechanisms can facilitate air-gap between the first and second HCF fiber end-faces, comprising preparing the HCF end-faces using appropriate cleaving methods including mechanical, ultrasonic and laser cleaving, such that the air-gap separation between first and second HCF's can be anywhere between 0.5-100 microns, where reflection at the connector interface is low with RL>35 dB, due to HCF propagation mode effective index matching with index of air.

公开(公告)号：US12185037B2

公开(公告)日：2024-12-31

申请号：US18104539

申请日：2023-02-01

Applicant: Panduit Corp.

Inventor： Richard J. Pimpinella ,  Jose M. Castro

IPC: H04B10/00 ,  H04Q11/00 ,  H04J14/00

Abstract: An optical interconnection assembly for a Spine-and-Leaf network is disclosed. The optical interconnection assembly has Spine multi-fiber optical connectors and Leaf multi-fiber optical connectors. The Spine optical connectors of the interconnection assembly are optically connected to multi-fiber connectors of Spine switches via Spine patch cords. The leaf multi-fiber connectors are optically connected to Leaf multi-fiber connectors of Leaf switches via Leaf patch cords. An array of simplex fiber optic cables in said interconnection assembly serve to optically connect every Spine multi-fiber connector to every Leaf multi-fiber connector so that every Spine switch is optically connected to every Leaf switch. The optical interconnection assembly facilitates network Spine-and-Leaf interconnections and the ability to scale-out the network by installing additional assemblies, Leaf switches, and Spine switches.

公开(公告)号：US20240430009A1

公开(公告)日：2024-12-26

申请号：US18213458

申请日：2023-06-23

Applicant: Panduit Corp.

Inventor： Richard J. Pimpinella ,  Jose M. Castro

IPC: H04B10/40

Abstract: An apparatus having at least two user interfacing I/O data communication transceivers. The I/O transceiver utilizes either electrical or optical signaling based on user preference with each I/O transceiver being electrically connected back-to-back to a WDM transceiver in the apparatus. The optical media dependent interface of each WDM transceiver has a uniquely specified wavelength and optical ports of the WDM transceivers are connected to the corresponding wavelength ports of a WDM device. The discrete optical wavelengths are multiplexed or demultiplex onto a duplex pair of optical fibers by means of the WDM device in order to convert the interfacing I/O signals to the appropriate optical wavelengths to facilitate pre-configured WDM optical communications.

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.

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.

公开(公告)号：US20240072897A1

公开(公告)日：2024-02-29

申请号：US17899688

申请日：2022-08-31

Applicant: Panduit Corp.

Inventor： Bulent Kose ,  Jose M. Castro ,  Yu Huang

IPC: H04B10/25 ,  H04J14/02

CPC classification number: H04B10/2589 ,  H04J14/02

Abstract: A system for implementing Bi-Di fiber optic LAN has a plurality of optical channels being transmitted over a same optical fiber by using wavelength division multiplexing and wherein at least one of the optical fiber channels have bi-directional transmission. The system also has an access network side located in at least one of a zone distribution area or zone box, access network side cabling distributed across diverse physical distances with individual cable runs; and optical Ethernet transceivers that do not require the high transmitting optical power and high receiver sensitivity typically.

公开(公告)号：US20240035925A1

公开(公告)日：2024-02-01

申请号：US18375601

申请日：2023-10-02

Applicant: Panduit Corp.

Inventor： Yu Huang ,  Jose M. Castro ,  Surendra Chitti Babu ,  Andrew R. Matcha ,  Thomas M. Sedor

IPC: G01M11/00 ,  B08B1/00 ,  B08B13/00

CPC classification number: G01M11/31 ,  B08B1/001 ,  B08B13/00 ,  B08B2240/02

Abstract: Various implementations of visual inspector attachments for fiber connector cleaners are disclosed. The example fiber optic inspection module includes a camera to capture an image of an end-face, a light source to illuminate the end-face, and a first mirror that reflects light from the light source to the end-face and includes a fixed point that allows the first mirror to pivot. Alternatively, an example fiber optic inspection module includes a camera to capture an image of an end-face, a light source to illuminate the end-face, and a first mirror that reflects light from the light source to the end-face and the first mirror moves in an upward direction.