Thomas J Cullen

US Patent:

6327406, Dec 4, 2001

Filed:

Apr 7, 2000

Appl. No.:

9/544484

Inventors:

Thomas J. Cullen - Columbia MD
Timothy E. Hammon - Silver Spring MD
John M. Stockhausen - Arnold MD

Assignee:

ACME Grating Ventures, LLC - Columbia MD

International Classification:

G02B 632

US Classification:

385 37

Abstract:

Apparatuses, systems, and methods are disclosed for providing optical communications. Bragg grating used in the optical components and systems of the present invention are produced by selectively hydrogenating one or more selected sections of an optical waveguide in general, and particularly optical fiber. Selective hydrogenation can be performed by selectively establishing local conditions in a first environment conducive to introducing greater quantities of hydrogen into selected sections than into non-selected sections, which are maintained in a second environment. The extent of selective hydrogenation and the hydrogen concentration difference between selected and non-selected section of the waveguide is a function of the temperature, pressure, and time of exposure established in the first and second environments.

US Patent:

D2536013, Dec 4, 1979

Filed:

Oct 17, 1977

Appl. No.:

5/843123

Inventors:

William J. Weber - Dix Hills NY
Jeffrey Herbst - Plainview NY
Thomas Cullen - Levittown NY

Assignee:

Weber & Stevens, Inc. - Melville NY

International Classification:

D1906

US Classification:

D19 37

US Patent:

62387294, May 29, 2001

Filed:

Apr 7, 2000

Appl. No.:

9/544485

Inventors:

Thomas J. Cullen - Columbia MD
Timothy E. Hammon - Silver Spring MD
John M. Stockhausen - Arnold MD

Assignee:

Acme Grating Ventures, LLC - Columbia MD

International Classification:

B05D 506
G02B 602
G02B 610

US Classification:

427 8

Abstract:

Apparatuses, systems, and methods are disclosed for providing optical communications. Bragg grating used in the optical components and systems of the present invention are produced by selectively hydrogenating one or more selected sections of an optical waveguide in general, and particularly optical fiber. Selective hydrogenation can be performed by selectively establishing local conditions in a first environment conducive to introducing greater quantities of hydrogen into selected sections than into non-selected sections, which are maintained in a second environment. The extent of selective hydrogenation and the hydrogen concentration difference between selected and non-selected section of the waveguide is a function of the temperature, pressure, and time of exposure established in the first and second environments.

US Patent:

61467138, Nov 14, 2000

Filed:

Mar 25, 1999

Appl. No.:

9/276015

Inventors:

Thomas J. Cullen - Columbia MD
Timothy E. Hammon - Silver Spring MD
John M. Stockhausen - Arnold MD

Assignee:

Acme Grating Ventures, LLC - Columbia MD

International Classification:

B05D 306
B05D 506
G02B 602
G02B 610

US Classification:

427553

Abstract:

Apparatuses, systems, and methods are disclosed for providing optical communications. Bragg grating used in the optical components and systems of the present invention are produced by selectively hydrogenating one or more selected sections of an optical waveguide in general, and particularly optical fiber. Selective hydrogenation can be performed by selectively establishing local conditions in a first environment conducive to introducing greater quantities of hydrogen into selected sections than into non-selected sections, which are maintained in a second environment. The extent of selective hydrogenation and the hydrogen concentration difference between selected and non-selected section of the waveguide is a function of the temperature, pressure, and time of exposure established in the first and second environments.

US Patent:

62384856, May 29, 2001

Filed:

Apr 7, 2000

Appl. No.:

9/544488

Inventors:

Thomas J. Cullen - Columbia MD
Timothy E. Hammon - Silver Spring MD
John M. Stockhausen - Arnold MD

Assignee:

Acme Grating Ventures, LLC - Columbia MD

International Classification:

C23C 1600

US Classification:

118719

Abstract:

Apparatuses, systems, and methods are disclosed for providing optical communications. Bragg grating used in the optical components and systems of the present invention are produced by selectively hydrogenating one or more selected sections of an optical waveguide in general, and particularly optical fiber. Selective hydrogenation can be performed by selectively establishing local conditions in a first environment conducive to introducing greater quantities of hydrogen into selected sections than into non-selected sections, which are maintained in a second environment. The extent of selective hydrogenation and the hydrogen concentration difference between selected and non-selected section of the waveguide is a function of the temperature, pressure, and time of exposure established in the first and second environments.