Joseph W Pierson

US Patent:

6362118, Mar 26, 2002

Filed:

Apr 20, 2000

Appl. No.:

09/553109

Inventors:

George H. Beall - Big Flats NY
Joel P. Carberry - Horseheads NY
Kenneth Chyung - Painted Post NY
Joseph E. Pierson - Painted Post NY
James E. Webb - Corning NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

C03C 1012

US Classification:

501 7, 501 4, 501 10

Abstract:

The invention includes methods of stabilizing negative thermal expansion glass-ceramic optical waveguide substrates. The invention includes the stabilized negative thermal expansion glass-ceramic optical waveguide substrates. The stabilized substrates have very stable physical characteristics such as dimensional length when exposed to extreme environments. The stabilized substrates are used to athermalize optical waveguide devices such as optical fiber grating. The stabilized substrates are particularly well suited for providing athermalized fiber Bragg grating.

US Patent:

6465380, Oct 15, 2002

Filed:

Oct 20, 2000

Appl. No.:

09/693446

Inventors:

George H. Beall - Big Flats NY
Kenneth Chyung - Painted Post NY
Joseph E. Pierson - Painted Post NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

C03C 1012

US Classification:

501 7

Abstract:

An athermal optical device and a method for producing the device, such as an athermal optical fiber reflective grating, are described. The athermal optical fiber reflective grating device comprises a negative expansion substrate, an optical fiber mounted on the substrate surface, and a grating defined in the optical fiber. The method for producing the athermal optical fiber reflective grating device comprises providing a negative expansion substrate, mounting an optical fiber with at least one reflective grating defined therein onto the substrate upper surface, and affixing the optical fiber to the substrate at at least two spaced apart locations.

US Patent:

6477299, Nov 5, 2002

Filed:

Mar 20, 2000

Appl. No.:

09/531053

Inventors:

George H. Beall - Big Flats NY
Joel P. Carberry - Horseheads NY
Kenneth Chyung - Painted Post NY
Joseph E. Pierson - Painted Post NY
James E. Webb - Corning NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

G02B 634

US Classification:

385 37, 385 14, 385123, 385141

Abstract:

The invention includes environmentally stable athermalized optical fiber gratings and methods of making such stabilized optical waveguide fiber grating. Stable humidity-resistant athermalized fiber Bragg gratings are provided by stabilizing a negative thermal expansion substrate and utilizing a durable frit to attach the fiber Bragg grating to the substrate.

US Patent:

6660669, Dec 9, 2003

Filed:

Aug 14, 2001

Appl. No.:

09/929549

Inventors:

George H. Beall - Big Flats NY
Joseph E. Pierson - Painted Post NY
Linda R. Pinckney - Corning NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

C03C 1004

US Classification:

501 5, 501 37

Abstract:

A composition for a glass-ceramic material that contains a crystallinity of at least about 30% by weight of forsterite components at a liquidus temperature of about 1525Â C. or below. The glass-ceramic has a composition, in weight percent on an oxide basis, consisting essentially of about: 40-60% SiO ; 10-25% Al O ; 18-30% MgO; 3-10% Na O; 0-10% K O; 5-15% TiO. The invention further comprises a method for achieving high crystalline yield at such a low liquidus with increased solubility of high levels of chromium ions. The glass-ceramics can be used in drawing optical fibers and as gain media in amplifier and laser devices for near infrared wavelengths.

US Patent:

6813903, Nov 9, 2004

Filed:

Sep 30, 2003

Appl. No.:

10/674855

Inventors:

George H. Beall - Big Flats NY
Joseph E. Pierson - Painted Post NY
Linda R. Pinckney - Corning NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

C03C 1004

US Classification:

65 331, 65 337

Abstract:

A composition for a glass-ceramic material that contains a crystallinity of at least about 30% by weight of forsterite components at a liquidus temperature of about 1525Â C. or below. The glass-ceramic has a composition, in weight percent on an oxide basis, consisting essentially of about: 40-60% SiO ; 10-25% Al O ; 18-30% MgO; 3-10% Na O; 0-10% K O; 5-15% TiO. The invention further comprises a method for achieving high crystalline yield at such a low liquidus with increased solubility of high levels of chromium ions. The glass-ceramics can be used in drawing optical fibers and as gain media in amplifier and laser devices for near infrared wavelengths.

US Patent:

53288742, Jul 12, 1994

Filed:

Oct 18, 1993

Appl. No.:

8/136893

Inventors:

George H. Beall - Big Flats NY
Joseph E. Pierson - Painted Post NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

C03C 316

US Classification:

501 45

Abstract:

This invention relates to the preparation of a glass exhibiting a transition temperature normally below about 300. degree. , a working temperature below about 400. degree. , while, at the same time, exhibiting excellent resistance to attack by water. Specifically, the present invention discloses a glass consisting essentially in terms of mole percent on the oxide basis, of 15-35% P. sub. 2 O. sub. 5, 1-25% SO. sub. 3, 30-55% ZnO, 0-25% R. sub. 2 O, wherein R. sub. 2 O is selected from the group consisting of 0-25% Li. sub. 2 O, 0-25% Na. sub. 2 O, and 0-25% K. sub. 2 O, and up to a total of 15% of optional ingredients in the indicated proportions selected from the group consisting of 0-10% Al. sub. 2 O. sub. 3, 0-10% MgO, 0-10% CaO, 0-10% SrO, 0-10% BaO, 0-10% MnO, 0-10% transition metal oxides and 0-15% Cl+F, as analyzed in weight percent.

US Patent:

43415440, Jul 27, 1982

Filed:

Aug 20, 1981

Appl. No.:

6/294466

Inventors:

George H. Beall - Big Flats NY
Joseph E. Pierson - Painted Post NY

Assignee:

Corning Glass Works - Corning NY

International Classification:

C03B 2702
C03B 3200
C03C 322

US Classification:

65 3014

Abstract:

The present invention is concerned with glass-ceramic articles which are extremely resistant to impact and spontaneous delayed breakage, are capable of being sawn with a diamond wheel to a depth of over one-third the cross section thereof without breakage, and exhibit modulus of rupture values of at last 150,000 psi. The articles consist of a body portion and an integral surface compression layer having a depth of at least 0. 005". The body portion consists essentially, in weight percent, of about 8-13% Na. sub. 2 O, 7-13% K. sub. 2 O, 30-36% Al. sub. 2 O. sub. 3, 35-43% SiO. sub. 2, and 6-10% RO. sub. 2, wherein RO. sub. 2 consists of 6-10% TiO. sub. 2 and 0-4% ZrO. sub. 2, wherein the molar ratio Al. sub. 2 O. sub. 3 :SiO. sub. 2 is >0. 5 but

US Patent:

53526384, Oct 4, 1994

Filed:

Feb 22, 1994

Appl. No.:

8/199753

Inventors:

George H. Beall - Big Flats NY
Joseph E. Pierson - Painted Post NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

C03C 1002

US Classification:

501 10

Abstract:

This invention is directed to the production of thermally crystallizable glasses which can be crystallized in situ via heat treatment into glass-ceramic articles containing a nickel spinelloid as the predominant crystal phase. The glasses consist essentially, in weight percent, of 40-60% SiO. sub. 2, 10-35% Al. sub. 2 O. sub. 3, 5-35% NiO, 0-20% MgO, and 0-15% total TiO. sub. 2 and/or ZrO. sub. 2. The preferred glasses contain at least 2% MgO.