Alan J Morrow

US Patent:

20040076381, Apr 22, 2004

Filed:

May 29, 2003

Appl. No.:

10/448701

Inventors:

Alan Morrow - Corning NY, US
Romain Ramel - Saint Egreve, FR
Felix Scotta - Savigny Le Temple, FR

International Classification:

G02B006/36

US Classification:

385/089000

Abstract:

An optical submodule includes an optical assembly, an input port and an output port. The input port accepts an input optical fiber and retains the input optical fiber in proper orientation with respect to the optical assembly. The output port accepts an output optical fiber and retains the output optical fiber in proper orientation with respect to the optical assembly. In one embodiment, the input and output optical fibers each include a collimating lens. In another embodiment, the collimating lenses for the input and output optical fibers are included within the optical assembly.

US Patent:

42983657, Nov 3, 1981

Filed:

Jul 3, 1980

Appl. No.:

6/165652

Inventors:

Alan C. Bailey - Painted Post NY
Alan J. Morrow - Elmira NY

Assignee:

Corning Glass Works - Corning NY

International Classification:

C03B 1906
C03B 37025
C03B 37075

US Classification:

65 312

Abstract:

A method of making solid glass articles by the flame hydrolysis technique. A thin stratum of low viscosity glass soot is applied to the surface of a mandrel. First and second coatings of glass soot are deposited on the surface of the thin stratum to form a porous preform. The refractive index of the soot particles of the first coating is greater than that of the soot of the second coating, and the soot of the first coating has a viscosity lower than that of the second coating. The mandrel is removed, and the soot preform is subjected to a high temperature whereby it is consolidated to form a dense glass blank. The glass surface tension and the relative viscosities of the inner and outer portions of the preform cause the aperture to close during the consolidation process. The thin stratum, which preferably includes P. sub. 2 O. sub. 5, smoothes over the damage caused by removing the mandrel and reduces or even eliminates seed formation at the axis of the resultant glass blank.

US Patent:

52038980, Apr 20, 1993

Filed:

Dec 16, 1991

Appl. No.:

7/809697

Inventors:

Norman W. Carpenter - Woodhull NY
Alan J. Morrow - Elmira NY
Donald R. Young - Corning NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

C03B 3710
C03B 37023

US Classification:

65 312

Abstract:

Disclosed is a method of forming a glass tube doped with boron and fluorine. A B. sub. 2 O. sub. 3 -doped tubular porous preform is heated, and a fluorine-containing gas is flowed into its aperture. The temperature is sufficiently high to cause the fluorine-containing gas to decompose and form fluorine which dopes the preform. Also flowed into the aperture is a sufficient amount of BF. sub. 3 to prevent fluorine from reacting with the B. sub. 2 O. sub. 3 in the porous preform and forming a B. sub. 2 O. sub. 3 -depleted region near the aperture surface. The particles are then fused to form a fluorine-containing dense glass tube.

US Patent:

60441917, Mar 28, 2000

Filed:

Nov 3, 1998

Appl. No.:

9/185472

Inventors:

George E. Berkey - Pine City NY
Venkata A. Bhagavatula - Big Flats NY
Peter C. Jones - Wilmington NC
Donald B. Keck - Big Flats NY
Yanming Liu - Horeheads NY
Robert A. Modavis - Santa Rosa CA
Alan J. Morrow - Elmira NY
Mark A. Newhouse - Corning NY
Daniel A. Nolan - Corning NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

G02B 602

US Classification:

385123

Abstract:

A single-mode optical waveguide fiber designed to limit power penalty due to four wave mixing and a method of making the waveguide is disclosed. Variations in properties, e. g. , radius or refractive index, of the waveguide fiber core provide a total dispersion which varies along the length of the waveguide. The algebraic sum of products of length times total dispersion is controlled to a pre-selected value for each waveguide fiber which makes up a system link Proper choice of total dispersion variation magnitude and sub-length results in a system link wherein a signal travels only short distances in waveguide portions having total dispersion near zero. However, the variation of the total dispersion provides a system link which has a pre-selected dispersive effect on the signal over a selected wavelength range. The dispersive effect on the signal can be chosen to be essentially zero. A number of techniques for fabricating DM fiber are also disclosed.

US Patent:

51465191, Sep 8, 1992

Filed:

Aug 28, 1990

Appl. No.:

7/573828

Inventors:

William J. Miller - Corning NY
Alan J. Morrow - Elmira NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

G02B 626

US Classification:

385 43

Abstract:

An apparatus for selectively transmitting input optical signals carried on input optical fibers to output optical fibers. A three refractive index tapered wave guide structure is bent and maintained in the bent state. This structure is, thereafter, rotated in the bent state. The coupling characteristics are tunable based on the degree of rotation.

US Patent:

59464305, Aug 31, 1999

Filed:

Aug 4, 1997

Appl. No.:

8/905515

Inventors:

Alan John Morrow - Elmira NY
Richard Roth - Boulder CO

Assignee:

Corning Incorporated - Corning NY

International Classification:

G02B 628

US Classification:

385 24

Abstract:

A device for adding and/or dropping a signal to a transmission line. First and second optical circulators are connected by at least one switchable grating reflector, whereby a grating reflector can be switched into or out of the connecting path between the two circulators. A plurality of optical signals, each centered about a different wavelength, is coupled to a first port of the first circulator; these signals appear at the second port thereof. If a grating reflector capable of reflecting. lambda. sub. i is switched into the circuit, the signal centered about. lambda. sub. i propagates from the second port of the first circulator and reflects from the grating reflector back into the second port and out of the third port. The remainder of the input signals that are not reflected by grating reflectors propagate into the first port and from the second port of the second circulator as an output thereof. Also, a signal at wavelength. lambda. sub.

US Patent:

44138822, Nov 8, 1983

Filed:

May 26, 1981

Appl. No.:

6/266745

Inventors:

Alan C. Bailey - Painted Post NY
Alan J. Morrow - Elmira NY

Assignee:

Corning Glass Works - Corning NY

International Classification:

G02B 5172

US Classification:

350 9630

Abstract:

Solid glass articles are made by the flame hydrolysis technique. A thin stratum of low viscosity glass soot is applied to the surface of a mandrel. First and second coatings of glass soot are deposited on the surface of the thin stratum to form a porous preform. The refractive index of the soot particles of the first coating is greater than that of the soot of the second coating, and the soot of the first coating has a viscosity lower than that of the second coating. The mandrel is removed, and the soot preform is subjected to a high temperature whereby it is consolidated to form a dense glass blank. The glass surface tension and the relative viscosities of the inner and outer portions of the preform cause the aperture to close during the consolidation process. The thin stratum, which preferably includes P. sub. 2 O. sub. 5, smoothes over the damage caused by removing the mandrel and reduces or even eliminates seed formation at the axis of the resultant glass blank.

US Patent:

58945377, Apr 13, 1999

Filed:

Jan 11, 1996

Appl. No.:

8/584868

Inventors:

George E. Berkey - Pine City NY
Venkata A. Bhagavatula - Big Flats NY
Peter C. Jones - Wilmington NC
Donald B. Keck - Big Flats NY
Yanming Liu - Horseheads NY
Robert A. Modavis - Painted Post NY
Alan J. Morrow - Elmira NY
Mark A. Newhouse - Corning NY
Daniel A. Nolan - Corning NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

G02B 610

US Classification:

385123

Abstract:

A single-mode optical waveguide fiber designed to limit power penalty due to four wave mixing and a method of making the waveguide is disclosed. Variations in properties, e. g. , radius or refractive index, of the waveguide fiber core provide a total dispersion which varies along the length of the waveguide. The algebraic sum of products of length times total dispersion is controlled to a pre-selected value for each waveguide fiber which makes up a system link. Proper choice of total dispersion variation magnitude and sub-length results in a system link wherein a signal travels only short distances in waveguide portions having total dispersion near zero. However, the variation of the total dispersion provides a system link which has a pre-selected dispersive effect on the signal over a selected wavelength range. The dispersive effect on the signal can be chosen to be essentially zero. A number of techniques for fabricating DM fiber are also disclosed.