公开(公告)号：US20140092380A1

公开(公告)日：2014-04-03

申请号：US14037912

申请日：2013-09-26

Applicant: Corning Incorporated

Inventor： Xin Chen ,  Jason Edward Hurley ,  Charles Frederick Laing ,  Anping Liu ,  Jody Paul Markley ,  Eric John Mozdy

IPC: G02B6/028

CPC classification number: G02B6/0288 ,  G01M11/31 ,  G01M11/3109 ,  H04B10/071 ,  H04B10/0731 ,  H04B10/2581

Abstract: A method of measuring the bandwidth of a multi-mode optical fiber using single-ended, on-line and off-line approaches and test configurations. The method includes: transmitting a light signal through the first end of a multi-mode fiber toward the second end of the multi-mode fiber, so that a portion of the light signal is reflected by the second end toward the first end of the multi-mode fiber; and receiving the reflected portion of the light signal at the first end of the multi-mode fiber. The method also includes obtaining magnitude and frequency data related to the reflected portion of the light signal at the first end of the multi-mode fiber; and analyzing the magnitude and the frequency data to determine a bandwidth of the multi-mode optical fiber. The length of the multi-mode fiber may also increase over time during testing.

Abstract translation: 使用单端，在线和离线方法和测试配置测量多模光纤的带宽的方法。 该方法包括：通过多模光纤的第一端朝向多模光纤的第二端发送光信号，使得光信号的一部分被第二端反射到多模光纤的第一端 模式光纤 以及在多模光纤的第一端处接收光信号的反射部分。 该方法还包括：在多模光纤的第一端获得与光信号的反射部分相关的幅度和频率数据; 并分析幅度和频率数据以确定多模光纤的带宽。 在测试期间，多模光纤的长度也可随时间而增加。

公开(公告)号：US11708291B2

公开(公告)日：2023-07-25

申请号：US16123732

申请日：2018-09-06

Applicant: Corning Incorporated

Inventor： Jennifersue A. Bowker ,  Xin Chen ,  Jason Edward Hurley ,  Elios Klemo ,  Igor Rafaelyevich Mejouev ,  Daniel Aloysius Nolan ,  Dale Robert Powers

IPC: C03B37/025 ,  C03B37/07 ,  G01M11/00 ,  G02B6/028

CPC classification number: C03B37/0253 ,  G01M11/338 ,  G02B6/0288 ,  C03B2205/40

Abstract: Methods for modifying multi-mode optical fiber manufacturing processes are disclosed. In one embodiment, a method for modifying a process for manufacturing multi-mode optical fiber includes measuring at least one characteristic of a multi-mode optical fiber. The at least one characteristic is a modal bandwidth or a differential mode delay at one or more wavelengths. The method further includes determining a measured peak wavelength of the multi-mode optical fiber based on the measured characteristic, determining a difference between the target peak wavelength and the measured peak wavelength, and modifying the process for manufacturing multi-mode optical fiber based on the difference between the target peak wavelength and the measured peak wavelength.

公开(公告)号：US09279741B2

公开(公告)日：2016-03-08

申请号：US14089023

申请日：2013-11-25

Applicant: Corning Incorporated

Inventor： Kevin Wallace Bennett ,  Xin Chen ,  Jason Edward Hurley ,  Anping Liu ,  Jody Paul Markley ,  Joseph Edward McCarthy ,  Eric John Mozdy

IPC: G01M11/00 ,  H04B10/071 ,  H04B10/077 ,  C03B37/025

CPC classification number: G01M11/30 ,  C03B37/0253 ,  C03B2205/70 ,  G01M11/31 ,  G01M11/3118 ,  G01M11/3163 ,  G01M11/33 ,  G01M11/338 ,  G01M11/35 ,  H04B10/071 ,  H04B10/0775

Abstract: A method of measuring optical properties of a multi-mode optical fiber during processing of the fiber is described. The method includes: transmitting a light signal through one of the draw end of the multi-mode fiber and a test fiber section toward the other of the draw end and the test fiber section; and receiving a portion of the light signal at one of the draw end and the test fiber section. The method also includes obtaining optical data related to the received portion of the light signal; and analyzing the optical data to determine a property of the multi-mode fiber.

Abstract translation: 描述了在处理光纤期间测量多模光纤的光学特性的方法。 该方法包括：通过多模光纤的牵引端中的一个和测试光纤部分朝向拉出端和测试光纤部分中的另一个传输光信号; 并且在所述拉伸端和所述测试纤维部分中的一个处接收所述光信号的一部分。 该方法还包括获得与光信号的接收部分相关的光学数据; 以及分析光学数据以确定多模光纤的特性。

公开(公告)号：US10260990B2

公开(公告)日：2019-04-16

申请号：US14251869

申请日：2014-04-14

Applicant: CORNING INCORPORATED

Inventor： Xin Chen ,  Jason Edward Hurley ,  Ming-Jun Li ,  Richard Stephen Vodhanel

IPC: G01N21/00 ,  G01M11/00

Abstract: A differential mode delay (DMD) measurement system for an optical fiber is provided. The system includes an optical test fiber with a plurality of modes; a single mode light source that provides a continuous light wave signal to a modulator; and a pulse generator that provides an electrical pulse train signal to the modulator and a triggering signal to a receiver. The modulator is configured to generate a modulated optical test signal through the optical fiber based at least in part on the received light wave and pulse train signals, and the receiver is configured to receive the test signal transmitted through the fiber and evaluate the test signal based at least in part on the triggering signal. The system can be employed to create DMD waveform and centroid charts to obtain minEMBc bandwidth information for a fiber within a wavelength range.

公开(公告)号：US20140319354A1

公开(公告)日：2014-10-30

申请号：US14248852

申请日：2014-04-09

Applicant: Corning Incorporated

Inventor： XIN CHEN ,  Jason Edward Hurley ,  Daniel Aloysius Nolan ,  Richard Stephen Vodhanel

IPC: G01M11/00

CPC classification number: G01M11/333 ,  G01M11/335 ,  H04B10/0731 ,  H04B10/2581

Abstract: Methods and apparatus for measuring the modal bandwidth of a multimode optical fiber as a function of wavelength are disclosed. The methods include emitting polarized light from a single-mode fiber, frequency-modulating the single-mode polarized light, and then conditioning the frequency-modulated polarized light to excite multiple modes of the multimode optical fiber. The multimode light transmitted by the multimode optical fiber is detected and analyzed by a network analyzer to determine a bandwidth for at least three different wavelengths. A controller performs a fit to the measured bandwidths using a fitting equation to determine the modal bandwidth as a function of wavelength.

Abstract translation: 公开了用于测量作为波长的函数的多模光纤的模式带宽的方法和装置。 这些方法包括从单模光纤发射偏振光，对单模偏振光进行频率调制，然后对频率调制的偏振光进行调理以激发多模光纤的多种模式。 由多模光纤传输的多模光被网络分析仪检测和分析，以确定至少三种不同波长的带宽。 控制器使用拟合方程来对测量的带宽进行拟合，以确定作为波长的函数的模态带宽。

公开(公告)号：US20190016624A1

公开(公告)日：2019-01-17

申请号：US16123732

申请日：2018-09-06

Applicant: Corning Incorporated

Inventor： Jennifersue A. Bowker ,  Xin Chen ,  Jason Edward Hurley ,  Elios Klemo ,  Igor Rafaelyevich Mejouev ,  Daniel Aloysius Nolan ,  Dale Robert Powers

IPC: C03B37/025 ,  G02B6/028 ,  G01M11/00

Abstract: Methods for modifying multi-mode optical fiber manufacturing processes are disclosed. In one embodiment, a method for modifying a process for manufacturing multi-mode optical fiber includes measuring at least one characteristic of a multi-mode optical fiber. The at least one characteristic is a modal bandwidth or a differential mode delay at one or more wavelengths. The method further includes determining a measured peak wavelength of the multi-mode optical fiber based on the measured characteristic, determining a difference between the target peak wavelength and the measured peak wavelength, and modifying the process for manufacturing multi-mode optical fiber based on the difference between the target peak wavelength and the measured peak wavelength.

公开(公告)号：US20170307825A1

公开(公告)日：2017-10-26

申请号：US15486556

申请日：2017-04-13

Applicant: Corning Incorporated

Inventor： Scott Robertson Bickham ,  Jeffrey Scott Clark ,  John David Downie ,  Jason Edward Hurley ,  Sergejs Makovejs ,  Aramais Robert Zakharian

IPC: G02B6/255 ,  G02B6/02 ,  H04B10/29

CPC classification number: G02B6/2551 ,  G02B6/02014 ,  G02B6/02019 ,  G02B6/2552 ,  H04B10/29

Abstract: An optical fiber connection is provided that includes a first optical fiber defining a first exterior surface and a first effective area. The first fiber defines a first tapered region tapering from a first nominal fiber diameter to a first tapered diameter. A second optical fiber has a second exterior surface and a second effective area less than the first effective area. The second fiber defines a second tapered region tapering from a second nominal fiber diameter to a second tapered diameter and a fiber splice optically coupling the first tapered region of the first fiber to the second tapered region of the second fiber. The first and second tapered regions taper such that the first and second exterior surfaces have a variance from a Gaussian function of less than 25% of the Gaussian function at each point along the first and second exterior surfaces.

公开(公告)号：US20140368809A1

公开(公告)日：2014-12-18

申请号：US14251869

申请日：2014-04-14

Applicant: CORNING INCORPORATED

Inventor： Xin Chen ,  Jason Edward Hurley ,  Ming-Jun Li ,  Richard Stephen Vodhanel

IPC: G01M11/00

CPC classification number: G01M11/338 ,  G01M11/335

Abstract: A differential mode delay (DMD) measurement system for an optical fiber is provided. The system includes an optical test fiber with a plurality of modes; a single mode light source that provides a continuous light wave signal to a modulator; and a pulse generator that provides an electrical pulse train signal to the modulator and a triggering signal to a receiver. The modulator is configured to generate a modulated optical test signal through the optical fiber based at least in part on the received light wave and pulse train signals, and the receiver is configured to receive the test signal transmitted through the fiber and evaluate the test signal based at least in part on the triggering signal. The system can be employed to create DMD waveform and centroid charts to obtain minEMBc bandwidth information for a fiber within a wavelength range.

Abstract translation: 提供了一种用于光纤的差模延迟（DMD）测量系统。 该系统包括具有多种模式的光学测试光纤; 单模光源，向调制器提供连续的光波信号; 以及脉冲发生器，其向调制器提供电脉冲串信号和向接收器提供触发信号。 调制器被配置为至少部分地基于接收的光波和脉冲串信号通过光纤产生调制的光学测试信号，并且接收器被配置为接收通过光纤传输的测试信号并且基于 至少部分地基于触发信号。 该系统可用于创建DMD波形和质心图，以获得波长范围内的光纤的minEMBc带宽信息。

公开(公告)号：US10131566B2

公开(公告)日：2018-11-20

申请号：US14253994

申请日：2014-04-16

Applicant: Corning Incorporated

Inventor： Jennifersue A. Bowker ,  Xin Chen ,  Jason Edward Hurley ,  Elios Klemo ,  Igor Rafaelyevich Mejouev ,  Daniel Aloysius Nolan ,  Dale Robert Powers

IPC: C03B37/00 ,  C03B37/025 ,  G01M11/00 ,  G02B6/028

Abstract: Methods for modifying multi-mode optical fiber manufacturing processes are disclosed. In one embodiment, a method for modifying a process for manufacturing multi-mode optical fiber includes measuring at least one characteristic of a multi-mode optical fiber. The at least one characteristic is a modal bandwidth or a differential mode delay at one or more wavelengths. The method further includes determining a measured peak wavelength of the multi-mode optical fiber based on the measured characteristic, determining a difference between the target peak wavelength and the measured peak wavelength, and modifying the process for manufacturing multi-mode optical fiber based on the difference between the target peak wavelength and the measured peak wavelength.

公开(公告)号：US09377377B2

公开(公告)日：2016-06-28

申请号：US14248852

申请日：2014-04-09

Applicant: Corning Incorporated

Inventor： Xin Chen ,  Jason Edward Hurley ,  Daniel Aloysius Nolan ,  Richard Stephen Vodhanel

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

CPC classification number: G01M11/333 ,  G01M11/335 ,  H04B10/0731 ,  H04B10/2581

Abstract: Methods and apparatus for measuring the modal bandwidth of a multimode optical fiber as a function of wavelength are disclosed. The methods include emitting polarized light from a single-mode fiber, frequency-modulating the single-mode polarized light, and then conditioning the frequency-modulated polarized light to excite multiple modes of the multimode optical fiber. The multimode light transmitted by the multimode optical fiber is detected and analyzed by a network analyzer to determine a bandwidth for at least three different wavelengths. A controller performs a fit to the measured bandwidths using a fitting equation to determine the modal bandwidth as a function of wavelength.

Abstract translation: 公开了用于测量作为波长的函数的多模光纤的模式带宽的方法和装置。 这些方法包括从单模光纤发射偏振光，对单模偏振光进行频率调制，然后对频率调制的偏振光进行调理以激发多模光纤的多种模式。 由多模光纤传输的多模光被网络分析仪检测和分析，以确定至少三种不同波长的带宽。 控制器使用拟合方程来对测量的带宽进行拟合，以确定作为波长的函数的模态带宽。