公开(公告)号：US11711143B2

公开(公告)日：2023-07-25

申请号：US17583357

申请日：2022-01-25

Applicant: Panduit Corp.

Inventor： Jose M. Castro ,  Richard J. Pimpinella ,  Bulent Kose ,  Brett Lane ,  Yu Huang ,  Asher S. Novick

IPC: H04B10/073 ,  G01M11/08 ,  H04B10/2581 ,  G01M11/00 ,  H04B10/079

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：US20220149936A1

公开(公告)日：2022-05-12

申请号：US17583357

申请日：2022-01-25

Applicant: Panduit Corp.

Inventor： Jose M. Castro ,  Richard J. Pimpinella ,  Bulent Kose ,  Brett Lane ,  Yu Huang ,  Asher S. Novick

IPC: H04B10/073 ,  G01M11/00 ,  H04B10/2581

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：US20190260470A1

公开(公告)日：2019-08-22

申请号：US16341536

申请日：2017-10-05

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.

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：US20140226148A1

公开(公告)日：2014-08-14

申请号：US14084262

申请日：2013-11-19

Applicant: Panduit Corp.

Inventor： Brett Lane ,  Robert A. Reid ,  Joseph M. Nash

IPC: G01M11/00

CPC classification number: G01M11/31 ,  G01M11/3109 ,  G02B6/3807

Abstract: Embodiments of the present invention generally relate to the field of optical fiber splicing, and more specifically to apparatuses and methods directed to mechanical splice termination and evaluation of resulting splice joints. In an embodiment, the present invention is an apparatus for evaluating the integrity of a mechanical splice joint comprising a light source, a circulator, a photo detector, and an analysis circuit, wherein the apparatus connects to a test connector and evaluates signals representative of light pulses passing through at least a portion of the test connector.

Abstract translation: 本发明的实施例一般涉及光纤接合领域，更具体地涉及针对机械接头端接和对所得到的接头接头进行评估的设备和方法。 在一个实施例中，本发明是一种用于评估包括光源，循环器，光电检测器和分析电路的机械接头接头的完整性的装置，其中该设备连接到测试连接器并评估代表光的信号 脉冲通过至少一部分测试连接器。