公开(公告)号：US20150338578A1

公开(公告)日：2015-11-26

申请号：US14283846

申请日：2014-05-21

Applicant: CORNING INCORPORATED

Inventor： Scott Robertson Bickham ,  Xin Chen ,  Ming-Jun Li

IPC: G02B6/26 ,  G02B6/46

CPC classification number: G02B6/26 ,  G02B6/0365 ,  G02B6/4471 ,  G02B6/46 ,  Y10T29/49004

Abstract: Systems and methods are disclosed for converting a legacy 850 nm optical-fiber link in a data center to a 1310 nm optical-fiber link. The methods include accessing the primary optical fiber of the legacy 850 nm optical-fiber link and optically connecting thereto one or more sections of compensating optical fiber. The resulting 1310 nm link has a peak wavelength of nominally 1310 nm and supports a bandwidth of greater than 2 GHz·km and a data rate of at least 25 Gb/s.

Abstract translation: 公开了用于将数据中心中的传统850nm光纤链路转换为1310nm光纤链路的系统和方法。 这些方法包括访问传统850nm光纤链路的主光纤并且光学地连接到补偿光纤的一个或多个部分。 所得的1310nm链路具有标称为1310nm的峰值波长，并且支持大于2GHz·km的带宽和至少25Gb / s的数据速率。

公开(公告)号：US20140318188A1

公开(公告)日：2014-10-30

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: C03B37/025 ,  G01M11/00

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

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.

Abstract translation: 公开了用于修改多模光纤制造工艺的方法。 在一个实施例中，用于修改制造多模光纤的工艺的方法包括测量多模光纤的至少一个特性。 该至少一个特性是在一个或多个波长处的模式带宽或差分模式延迟。 该方法还包括基于所测量的特性确定多模光纤的测量的峰值波长，确定目标峰值波长与测量的峰值波长之间的差值，以及基于该方法修改制造多模光纤的工艺 目标峰值波长与测得的峰值波长之差。

公开(公告)号：US20140226151A1

公开(公告)日：2014-08-14

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

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：US08797519B2

公开(公告)日：2014-08-05

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: G01N21/00 ,  G02B6/028 ,  H04B10/071 ,  H04B10/2581 ,  H04B10/073 ,  G01M11/00

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：US20250130364A1

公开(公告)日：2025-04-24

申请号：US18920058

申请日：2024-10-18

Applicant: CORNING INCORPORATED

Inventor： Xin Chen ,  Ming-Jun Li ,  Yin Shu

IPC: G02B6/028 ,  G02B6/036

Abstract: An optical fiber including: (1) a first outer cladding region including a no-slope portion establishing a 0% baseline (Δ0); (2) a core region surrounded by the first outer cladding region, the core region including (i) an outer radius (r1) from 4.0 μm to 6.5 μm and (ii) a maximum relative refractive index (Δ1max) from 0.3% to 0.6%, the core region exhibiting an α value of 5 or greater; and (3) a depressed index cladding region surrounding the core region and surrounded by the first outer cladding region, the depressed index cladding region including (i) an outer radius (r3) from 14 μm to 28 μm, (ii) a relative refractive index (Δ3) from −0.45% to −0.30%, and (iii) a trench volume (VT) from 65%-μm2 to 140%-μm2. The optical fiber exhibits lower LP01 bending loss than LP11 bending loss at operating wavelengths in the O- and C-bands.

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：US11467335B2

公开(公告)日：2022-10-11

申请号：US16930811

申请日：2020-07-16

Applicant: CORNING INCORPORATED

Inventor： Xin Chen ,  Kangmei Li ,  Ming-Jun Li

IPC: G02B6/02 ,  G02B6/036 ,  H04B10/66 ,  G02B6/028 ,  H04B10/25 ,  H04B10/50

Abstract: The optical fibers disclosed have single mode and few mode optical transmission for VCSEL-based optical fiber transmission systems. The optical fibers have a cable cutoff wavelength λC of equal to or below 1260 nm thereby defining single mode operation at wavelengths greater than 1260 nm and few-mode operation at wavelengths in a wavelength range from 800 nm and 1100 nm. The mode-field diameter is in the range from 8.0 microns to 10.1 microns at 1310 nm. The optical fibers have an overfilled bandwidth OFL BW of at least 1 GHz·km at at least one wavelength in the wavelength range. The optical fibers have a single-step or two-step core and can have a trench refractive index profile. VCSEL based optical transmission systems and methods are disclosed that utilize both single core and multicore versions of the optical fiber.

公开(公告)号：US11012154B2

公开(公告)日：2021-05-18

申请号：US16905117

申请日：2020-06-18

Applicant: CORNING INCORPORATED

Inventor： Xin Chen ,  Kangmei Li ,  Ming-Jun Li

IPC: H04B10/079 ,  G01M11/00 ,  H04B10/25 ,  H04B10/54

Abstract: The present disclosure is directed to systems and methods for calculating a modal time delay and a modal bandwidth. For example, a method may include: transmitting an intensity-modulated light through a mode conditioner to generate a mode-conditioned intensity-modulated light; transmitting the mode-conditioned intensity-modulated light through an optical fiber under test (FUT) to excite a plurality of modes of the optical FUT; converting the mode-conditioned intensity-modulated light transmitted through the optical FUT into an electrical signal; measuring, based on the electrical signal, a transfer function or a complex transfer function of the optical FUT based on at least on one pair of the plurality of modes; calculating a modal delay time of the optical FUT based on the transfer function or the complex transfer function; and calculating a modal bandwidth of the optical FUT based on the modal delay time, the modal bandwidth being calculated for any given launch conditions of the plurality of modes.

公开(公告)号：US20170336559A1

公开(公告)日：2017-11-23

申请号：US15588047

申请日：2017-05-05

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Xin Chen ,  John Douglas Coleman ,  Ming-Jun Li

IPC: G02B6/028 ,  G02B6/38 ,  G02B6/02 ,  H04B10/40 ,  G02B6/44

CPC classification number: G02B6/0288 ,  G02B6/02023 ,  G02B6/028 ,  G02B6/0281 ,  G02B6/0365 ,  G02B6/3885 ,  G02B6/3893 ,  G02B6/4453 ,  G02B6/4471 ,  H04B10/40

Abstract: Disclosed is an optical fiber which includes a core including silica with a core diameter and having at least two dopants, a maximum relative refractive index delta of at least 0.7% and an alpha value in the range of 1.9-2.2. The core has a refractive index profile configured to transmit light in a multimode propagation at a first wavelength λ1 in the range of 800-1100 nm and to propagate light in a LP01 mode at a second wavelength λ2. The second wavelength λ2 is greater than 1200 nm. The optical fiber is structured to have a LP01 mode field diameter in the range of 8.5-12.5 μm at 1310 nm.

公开(公告)号：US20170242185A1

公开(公告)日：2017-08-24

申请号：US15590532

申请日：2017-05-09

Applicant: Corning Incorporated

Inventor： Xin Chen ,  Ming-Jun Li

IPC: G02B6/02 ,  H04B10/2581 ,  H04B10/60 ,  G02B6/036 ,  G02B6/26 ,  G02B6/028 ,  H04B10/50

CPC classification number: G02B6/02047 ,  G02B6/0288 ,  G02B6/0365 ,  G02B6/268 ,  H04B10/2581 ,  H04B10/50 ,  H04B10/60

Abstract: Some embodiments of the disclosure relate to an optical transmission system that operates at a wavelength in the range from 950 nm to 1600 nm and that employs a single-mode optical transmitter and an optical receiver optically coupled to respective ends of a multimode fiber designed for 850 nm multimode operation. The optical transmission system also employs at least one single mode fiber situated within the optical pathway between the optical transmitter and the receiver and coupled to the multimode fiber.