Charles F Laing, 74204 Navajo Dr, Searcy, AR 72143

7221439, May 22, 2007

Apr 29, 2005

11/118302

Xin Chen - Corning NY, US
Charles F. Laing - Wilmington NC, US
Ming-Jun Li - Horseheads NY, US
Sonya M. Raney - Wrightsville Beach NC, US

Corning Incorporated - Corning NY

G01N 21/00

356 731

A method for measuring longitudinal variation in chromatic dispersion in an optical fiber, comprising: (i) launching into a first end and a second end of optical fiber an optical signal at a wavelength λto collect backscatter power P(z) for different positions z within said optical fiber and providing measured OTDR backscatter traces; (ii) deriving from the measured OTDR backscatter traces at the single OTDR wavelength λeither (a) the longitudinal MFD(z) data or (b) the relative MFD data; and (iii) calculating estimated longitudinal dispersion D(z) from the longitudinal MFD(z) data or the relative MFD data, without utilizing any other wavelength data.

7746454, Jun 29, 2010

Mar 27, 2008

12/079440

Charles Frederick Laing - Wilmington NC, US
Jody Paul Markley - Corning NY, US
Randy C. Swingle - Athens PA, US

Corning Incorporated - Corning NY

G01N 21/00

356 731

An optical fiber continuous measurement system continually measures at least one optical property along a length of optical fiber. The system includes a rotatable body onto which a reflector is secured. The reflector is optically coupled to an end of the optical fiber, thereby allowing light propagating from the optical fiber to the reflector to be reflected back along the length of the optical fiber toward a measuring device. The property to be measured is acquired as the fiber is wound from one rotatable body to the other. The system is particularly suited for measuring attenuation, including macrobend loss in which case a localized bending mechanism is employed, along the length of the fiber.

2013004, Feb 28, 2013

Aug 16, 2012

13/587091

Xin Chen - Corning NY, US
Charles Frederick Laing - Wilmington NC, US
Ming-Jun Li - Horseheads NY, US
Anping Liu - Horseheads NY, US
Eric John Mozdy - Horseheads NY, US
Joseph Doull Thaler - Wilmington NC, US

C03B 37/025

65392, 65402

A method for producing an optical fiber is provided. The method includes the steps of drawing an optical fiber from a heated glass source in a furnace and introducing index perturbations to the optical fiber via a plurality of perturbation sources arranged at a plurality of different azimuthal locations. The index perturbations are introduced synchronously at different locations along the axial length of the fiber by the plurality of perturbation sources in a generally helical pattern on the outside surface of the fiber in one embodiment. According to another embodiment, the index perturbations are introduced by the plurality of perturbation sources at different frequencies.

6125160, Sep 26, 2000

Jul 26, 1999

9/359665

William B. Gaylord - Wilmington NC
Charles F. Laing - Wilmington NC
William C. Peters - Wilmington NC
David O. Sheppard - Wilmington NC
David G. Smith - Leeland NC
Edward G. Apple - Wilmington NC

General Electric Company - Schenectady NY

G21C 1900
A45B 308

376261

The spacer envelope measurement system includes a generally U-shaped fixture having support plates extensible into positions overlying the spacer for supporting the fixture from the spacer. Extensible heads are carried by the fixture for engaging the spacer, followed by the heads of measurement gauges whereby, upon extending the heads into clamping engagement with the spacer along opposite sides thereof, the measurement gauges accurately determine the lateral dimensions of the irradiated spacer. A spacer bar clamp member is pivotal between positions opening the fixture opposite the base leg of the U-shaped fixture, enabling the bundle to reside within the U-shaped opening and a second position closing the opening for aligning the fixture and the bundle. The measurements are taken under water in a nuclear fuel service pool.

2014009, Apr 3, 2014

Sep 26, 2013

14/037912

- Corning NY, US
Jason Edward Hurley - Corning NY, US
Charles Frederick Laing - Wilmington NC, US
Anping Liu - Horseheads NY, US
Jody Paul Markley - Watkins Glen NY, US
Eric John Mozdy - Horseheads NY, US

Corning Incorporated - Corning NY

G02B 6/028

356 731

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.