Brian S Cole

Address:

331 Crumhorn Lk Rd, Maryland, NY 12116

Phone:

6076389379

VIN:

1D7HU18277S116528

Make:

DODGE

Model:

RAM PICKUP 1500

Year:

2007

US Patent:

6526782, Mar 4, 2003

Filed:

Sep 28, 2001

Appl. No.:

09/964548

Inventors:

Reza Mossadegh - Alexandria VA
Brian Cole - Arlington VA
Pablo Pureza - Burke VA
Jasbinder Sanghera - Ashburn VA
Shyam Bayya - Ashburn VA
Ishwar Aggarwal - Fairfax Station VA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C03B 37022

US Classification:

65488, 65405, 65502, 65495, 65484, 65384

Abstract:

This invention pertains to apparatus and process for making core/clad glass fibers. The apparatus includes a central tube or receptacle connected at the top to a pressure controller and terminating in a reduced section; a side tube or receptacle positioned at about the level of the upper portion of the central tube; an outer tube or receptacle disposed around the bottom portion of the central tube terminating in a smaller section which is concentric with and spaced directly below the section of the central tube; a side arm connecting the side tube and the outer tube; and furnaces around the side, outer, and the reduced sections of the central and the outer tubes. The process includes the steps of disposing a solid core glass rod at a point removed from hot temperature that can cause crystallization in the core glass rod, disposing a solid clad glass rod at a point removed from the core glass rod, softening to the flowing condition the solid clad glass rod, transferring the softened clad glass to a lower point, the softened clad glass having a central void therethrough, heating the softened clad glass above its crystallization temperature, cooling the softened clad glass to a draw temperature, transferring the solid core glass rod into the central void in the softened clad glass, softening to the flowing condition the solid core glass rod with the heat from the softened and cooled clad glass, and drawing the core/clad glass fiber by allowing the clad and core glasses to flow in the form of a fiber.

US Patent:

6667257, Dec 23, 2003

Filed:

Oct 2, 2001

Appl. No.:

09/967942

Inventors:

Brian J. Cole - Arlington VA
Michael L. Dennis - Alexandria VA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C03C 1304

US Classification:

501 37, 501 54, 501 64, 3593415, 359343, 385141, 385142, 385144

Abstract:

A modified silica glass composition for providing a reduction in the multiphonon quenching for a rare-earth dopant comprising: SiO in a host material; a rare-earth dopant; a first SiO modifier; and a second SiO modifier; such that said first modifier and said second modifier reduce multiphonon quenching of the rare-earth dopant contained therein.

US Patent:

6924928, Aug 2, 2005

Filed:

Oct 2, 2002

Appl. No.:

10/261619

Inventors:

Michael Dennis - Alexandria VA, US
Brian Cole - Arlington VA, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H01S003/00

US Classification:

3593415

Abstract:

A device amplifies light at wavelengths in the vicinity of 1420-1530 nm, using thulium doped silica-based optical fiber. This wavelength band is of interest as it falls in the low-loss optical fiber telecommunications window, and is somewhat shorter in wavelength than the currently standard erbium doped silica fiber amplifier. The device thus extends the band of wavelengths which can be supported for long-distance telecommunications. The additional wavelength band allows the data transmission rate to be substantially increased via wavelength division multiplexing (WDM), with minimal modification to the standard equipment currently used for WDM systems. The host glass is directly compatible with standard silica-based telecommunications fiber. The invention also enables modified silicate based amplifiers and lasers on a variety of alternative transitions. Specifically, an S-band thulium doped fiber amplifier (TDFA) using a true silicate fiber host is described.

US Patent:

6993230, Jan 31, 2006

Filed:

Aug 1, 2003

Appl. No.:

10/632210

Inventors:

Jasbinder Sanghera - Ashburn VA, US
Ishwar Aggarwal - Fairfax Station VA, US
Leslie B. Shaw - Woodbridge VA, US
Pablo C. Pureza - Burke VA, US
Fred Kung - Alexandria VA, US
Brian Cole - Alexandria VA, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

G02B 6/02

US Classification:

385125, 385123, 385122, 385141

Abstract:

This invention pertains to a hollow core photonic band gap chalcogenide optical glass fiber and to a fabrication method for making the fiber. The fiber, which is 80-1000 microns in outside diameter, is characterized by a solid glass circumferential region and a structured region disposed centrally within the solid region, the structured region includes a hollow core of 1 micron to several hundreds of microns in diameter surrounded by a plurality of parallel hollow capillaries extending parallel to the core, the core being centrally and longitudinally located within the fiber. Ratio of open space to glass in the structured region is 30-99%. The fabrication method includes the steps of providing a mold, placing chalcogenide micro-tubes around the mold, stacking chalcogenide micro-canes around the stacked micro-tubes, fusing the micro-tubes and the micro-canes to form a preform, removing the mold and drawing the preform to obtain the fiber. In an alternative fabrication method, the fiber is made by extruding flowing chalcogenide glass through suitably made plate to form a preform and then drawing the preform to form the fiber.

US Patent:

7197899, Apr 3, 2007

Filed:

Jan 6, 2003

Appl. No.:

10/339255

Inventors:

Reza Mossadegh - Alexandria VA, US
Brian Cole - Arlington VA, US
Pablo Pureza - Burke VA, US
Jasbinder Sanghera - Ashburn VA, US
Shyam Bayya - Ashburn VA, US
Ishwar Aggarwal - Fairfax Station VA, US

Assignee:

United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C03B 37/075

US Classification:

65389, 65404, 65405, 65502

Abstract:

A process includes the steps of disposing a solid core glass rod at a point removed from hot temperature that can cause crystallization in the core glass rod, disposing a solid clad glass rod at a point removed from the core glass rod; softening to the flowing condition the solid clad glass rod, transferring the softened clad glass to a lower point, the softened clad glass having a central void therethrough, heating the softened clad glass above its crystallization temperature, cooling the softened clad glass to a draw temperature, transferring the solid core glass rod into the central void in the softened glad glass, softening to the flowing condition the solid core glass rod with the heat from the softened and cooled clad glass, and drawing the core/clad, glass fiber by allowing the clad and core glasses to flow in the form of a fiber.

US Patent:

7245424, Jul 17, 2007

Filed:

Jun 9, 2005

Appl. No.:

11/151176

Inventors:

Michael Dennis - Alexandria VA, US
Brian Cole - Arlington VA, US

Assignee:

United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H01S 3/00
H01S 3/30
C03B 37/075

US Classification:

35934141, 65390, 372 6

Abstract:

A device amplifies light at wavelengths in the vicinity of 1420-1530 nm, using thulium doped silica-based optical fiber. This wavelength band is of interest as it falls in the low-loss optical fiber telecommunications window, and is somewhat shorter in wavelength than the currently standard erbium doped silica fiber amplifier. The device thus extends the band of wavelengths which can be supported for long-distance telecommunications. The additional wavelength band allows the data transmission rate to be substantially increased via wavelength division multiplexing (WDM), with minimal modification to the standard equipment currently used for WDM systems. The host glass is directly compatible with standard silica-based telecommunications fiber. The invention also enables modified silicate based amplifiers and lasers on a variety of alternative transitions. Specifically, an S-band thulium doped fiber amplifier (TDFA) using a true silicate fiber host is described.

US Patent:

8446925, May 21, 2013

Filed:

Jan 29, 2010

Appl. No.:

12/696096

Inventors:

Lew Goldberg - Fairfax VA, US
Brian J Cole - Fairfax Station VA, US
John E Nettleton - Fairfax Station VA, US
Dallas N Barr - Woodbridge VA, US

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H01S 3/113

US Classification:

372 11, 372 10

Abstract:

A method and device for reducing the timing jitter in a passive Q-switched Nd:YAG solid state laser by spatially selective bleaching a thin sheet of a saturable absorber of Cr:YAG from a direction orthogonal to the direction of laser emission where the Cr:YAG transmission increases 18% when the bleaching probe beam is a single laser diode bar. For steady state operation of a passive Q-switched laser, the pulse-to-pulse timing jitter showed a −12× reduction in standard deviation from 241 nsec for free running operation to 20 nsec with optical triggering.

US Patent:

8488635, Jul 16, 2013

Filed:

Aug 17, 2010

Appl. No.:

12/857896

Inventors:

Lew Goldberg - Fairfax VA, US
Brian J. Cole - Fairfax Station VA, US

Assignee:

The United States of America as Represented by the Secretary of the Army - Washington DC

International Classification:

H01S 3/115

US Classification:

372 12, 372 10, 372 13

Abstract:

An actively Q-switched laser based on UV illumination mitigates pyroelectric effects in lithium niobate. An exemplary embodiment comprises a pump source; a dichroic mirror having one end optically facing said pump source; a gain medium optically facing another end of said dichroic mirror; a polarizer having one end optically facing another end of said gain medium; a quarter wave plate having one end optically facing another end of said polarizer; and a electro-optic crystal having one end optically facing said quarter wave plate, at least one side of said electro-optic crystal being electrically connected to Q-switch driver to have the crystal function as a Q-switch. A UV illumination source illuminates a side surface of said electrical-optic crystal with UV light. An output mirror receives an output from said Q-switch and produces a laser emission.