公开(公告)号：US20140204367A1

公开(公告)日：2014-07-24

申请号：US13966865

申请日：2013-08-14

Applicant: PANDUIT CORP.

Inventor： Gaston E. Tudury ,  Richard J. Pimpinella ,  Brett Lane

IPC: G01M11/00 ,  G02B6/02

CPC classification number: G01M11/30 ,  G01M11/335 ,  G01M11/338 ,  G02B6/02214 ,  H04B10/07951 ,  H04B10/2581

Abstract: A method for compensating for both material or chromatic dispersion and modal dispersion effects in a multimode fiber transmission system is provided. The method includes, but is not limited to measuring a fiber-coupled spatial spectral distribution of the multimode fiber laser transmitter connected with a reference multimode fiber optical cable and determining the amount of chromatic dispersion and modal dispersion present in the reference multimode fiber optic cable. The method also includes, but is not limited to, designing an improved multimode fiber optic cable which compensates for at least a portion of the chromatic dispersion and modal dispersion present in the reference multimode fiber optic cable resulting from the transmitter's fiber-coupled spatial spectral distribution.

Abstract translation: 提供了一种用于补偿多模光纤传输系统中的材料或色散和模态色散效应的方法。 该方法包括但不限于测量与参考多模光纤光缆连接的多模光纤激光发射器的光纤耦合空间光谱分布，并确定参考多模光纤电缆中存在的色散和模态色散量。 该方法还包括但不限于设计改进的多模光纤电缆，其补偿由发射机的光纤耦合空间光谱分布产生的参考多模光纤电缆中存在的色散和模态色散的至少一部分 。

公开(公告)号：US20210055474A1

公开(公告)日：2021-02-25

申请号：US17010213

申请日：2020-11-16

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.

公开(公告)号：US08705923B2

公开(公告)日：2014-04-22

申请号：US13930256

申请日：2013-06-28

Applicant: Panduit Corp.

Inventor： Gaston E. Tudury ,  Richard J. Pimpinella

IPC: G02B6/02 ,  G02B6/028

CPC classification number: G02B6/028 ,  G02B6/0288 ,  G06F17/50

Abstract: Methods for designing improved multimode fiber optic cables are provided. In an embodiment, the method includes measuring a DMD waveform profile of a reference multimode fiber optic cable, where the reference multimode fiber optic cable has a reference refractive index profile. The method of this embodiment further includes designing an improved refractive index profile for the improved multimode fiber optic cable, where the improved refractive index profile comprises the reference refractive index profile modified by a quantity Δn(r), where r is a radius from the center of the core, where the quantity Δn(r) is negative over at least some radial window, and where the quantity Δn(r) follows a function such that the improved multimode fiber optic cable having the improved refractive index profile produces a DMD waveform profile having a shift to the left in radial pulse waveforms for increasing radii.

Abstract translation: 提供改进的多模光纤电缆设计方法。 在一个实施例中，该方法包括测量参考多模光纤电缆的DMD波形分布，其中参考多模光纤电缆具有参考折射率分布。 该实施例的方法还包括设计用于改进的多模光纤电缆的改进的折射率分布，其中改进的折射率分布包括由数量＆Dgr; n（r）修改的参考折射率分布，其中r是从 核心的中心，其中数量＆Dgr; n（r）在至少一些径向窗口上是负的，并且其中数量＆Dgr; n（r）遵循功能，使得改进的多模光纤电缆具有改善的折射率 轮廓产生具有径向脉冲波形向左移位以增加半径的DMD波形分布。

公开(公告)号：US08488115B2

公开(公告)日：2013-07-16

申请号：US13667041

申请日：2012-11-02

Applicant: Panduit Corp.

Inventor： Richard J. Pimpinella ,  Gaston E. Tudury

IPC: G01N21/00

CPC classification number: H04B10/0775 ,  G01M11/338 ,  G02B6/0288

Abstract: A new metric applicable to the characterization and design of multimode fiber (MMF) is described. The metric is derived from a Differential Mode Delay (DMD) measurement and when used in combination with industry-standard metrics such as Effective Modal Bandwidth (EMB) and DMD, yields a more accurate prediction of MMF channel link performance as measured by Bit Error Rate (BER) testing. The metric can also be used in the design of MMF for improved bandwidth performance. When implemented as a test algorithm in production, it can be used to select, sort, or verify fiber performance. This process can yield a multimode fiber design with a greater performance margin for a given length, and/or a greater length for a given performance margin.

Abstract translation: 描述了适用于多模光纤（MMF）的表征和设计的新指标。 该度量来自差分模式延迟（DMD）测量，并且当与诸如有效模态带宽（EMB）和DMD的行业标准度量结合使用时，通过误码率测量得到更准确的MMF通道链路性能的预测 （BER）测试。 该度量还可用于MMF的设计，以提高带宽性能。 当作为生产中的测试算法实现时，它可用于选择，排序或验证光纤性能。 该过程可以产生对于给定长度具有更大性能裕度的多模光纤设计，和/或对于给定的性能裕度具有更大的长度。

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.

公开(公告)号：US08922763B2

公开(公告)日：2014-12-30

申请号：US13966865

申请日：2013-08-14

Applicant: Panduit Corp.

Inventor： Gaston E. Tudury ,  Richard J. Pimpinella ,  Brett Lane

IPC: G01N21/00 ,  G01M11/00 ,  G02B6/02

CPC classification number: G01M11/30 ,  G01M11/335 ,  G01M11/338 ,  G02B6/02214 ,  H04B10/07951 ,  H04B10/2581

Abstract: A method for compensating for both material or chromatic dispersion and modal dispersion effects in a multimode fiber transmission system is provided. The method includes, but is not limited to measuring a fiber-coupled spatial spectral distribution of the multimode fiber laser transmitter connected with a reference multimode fiber optical cable and determining the amount of chromatic dispersion and modal dispersion present in the reference multimode fiber optic cable. The method also includes, but is not limited to, designing an improved multimode fiber optic cable which compensates for at least a portion of the chromatic dispersion and modal dispersion present in the reference multimode fiber optic cable resulting from the transmitter's fiber-coupled spatial spectral distribution.

Abstract translation: 提供了一种用于补偿多模光纤传输系统中的材料或色散和模态色散效应的方法。 该方法包括但不限于测量与参考多模光纤光缆连接的多模光纤激光发射器的光纤耦合空间光谱分布，并确定参考多模光纤电缆中存在的色散和模态色散量。 该方法还包括但不限于设计改进的多模光纤电缆，其补偿由发射机的光纤耦合空间光谱分布产生的参考多模光纤电缆中存在的色散和模态色散的至少一部分 。

公开(公告)号：US20130070237A1

公开(公告)日：2013-03-21

申请号：US13667041

申请日：2012-11-02

Applicant: PANDUIT CORP.

Inventor： Richard J. Pimpinella ,  Gaston E. Tudury

IPC: G01N21/00

CPC classification number: H04B10/0775 ,  G01M11/338 ,  G02B6/0288

Abstract: A new metric applicable to the characterization and design of multimode fiber (MMF) is described. The metric is derived from a Differential Mode Delay (DMD) measurement and when used in combination with industry-standard metrics such as Effective Modal Bandwidth (EMB) and DMD, yields a more accurate prediction of MMF channel link performance as measured by Bit Error Rate (BER) testing. The metric can also be used in the design of MMF for improved bandwidth performance. When implemented as a test algorithm in production, it can be used to select, sort, or verify fiber performance. This process can yield a multimode fiber design with a greater performance margin for a given length, and/or a greater length for a given performance margin.

Abstract translation: 描述了适用于多模光纤（MMF）的表征和设计的新指标。 该度量来自差分模式延迟（DMD）测量，并且当与诸如有效模态带宽（EMB）和DMD的行业标准度量结合使用时，通过误码率测量得到MMF通道链路性能的更准确的预测 （BER）测试。 该度量还可用于MMF的设计，以提高带宽性能。 当作为生产中的测试算法实现时，它可用于选择，排序或验证光纤性能。 该过程可以产生对于给定长度具有更大性能裕度的多模光纤设计，和/或对于给定的性能裕度具有更大的长度。

公开(公告)号：US20130289956A1

公开(公告)日：2013-10-31

申请号：US13930256

申请日：2013-06-28

Applicant: Panduit Corp.

Inventor： Gaston E. Tudury ,  Richard J. Pimpinella

IPC: G06F17/50

CPC classification number: G02B6/028 ,  G02B6/0288 ,  G06F17/50

Abstract: Methods for designing improved multimode fiber optic cables are provided. In an embodiment, the method includes measuring a DMD waveform profile of a reference multimode fiber optic cable, where the reference multimode fiber optic cable has a reference refractive index profile. The method of this embodiment further includes designing an improved refractive index profile for the improved multimode fiber optic cable, where the improved refractive index profile comprises the reference refractive index profile modified by a quantity Δn(r), where r is a radius from the center of the core, where the quantity Δn(r) is negative over at least some radial window, and where the quantity Δn(r) follows a function such that the improved multimode fiber optic cable having the improved refractive index profile produces a DMD waveform profile having a shift to the left in radial pulse waveforms for increasing radii.

Abstract translation: 提供改进的多模光纤电缆设计方法。 在一个实施例中，该方法包括测量参考多模光纤电缆的DMD波形分布，其中参考多模光纤电缆具有参考折射率分布。 该实施例的方法还包括设计用于改进的多模光纤电缆的改进的折射率分布，其中改进的折射率分布包括由数量Deltan（r）修改的参考折射率分布，其中r是距中心的半径 的核心，其中数量Deltan（r）在至少一些径向窗口上是负的，并且其中数量Deltan（r）遵循功能，使得具有改善的折射率分布的改进的多模光纤电缆产生DMD波形分布 向径向移动到径向脉冲波形以增加半径。