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：US20210181409A1

公开(公告)日：2021-06-17

申请号：US17270736

申请日：2019-09-04

Applicant: Panduit Corp.

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

IPC: G02B6/02 ,  G02B27/00

Abstract: A patch cord for transmitting between a single mode fiber (SMF) and a multi-mode fiber (MMFs) has a MMF, SMF, and a photonic crystal fiber (PCF) with a hollow core placed between the SMF and MMF. A mode field diameter (MFD) of the PCF hollow core section is in the range of 16 to 19 microns, the length of the PCF is between 1 cm to 10 cm, the MMF has 50+2 microns core diameter, the SMF has a 6-9 microns core diameter, and the coupling between the PCF mode to the MMF fundamental mode is maximized.

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：US20190128776A1

公开(公告)日：2019-05-02

申请号：US15801644

申请日：2017-11-02

Applicant: Panduit Corp.

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

IPC: G01M11/00 ,  G02B6/38

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.