ROBERT SCOTT WINDELER
Pilots at Willow Brk Ln, Annandale, NJ

6400866, Jun 4, 2002

Feb 1, 2001

09/773702

Jinendra Kumar Ranka - Brookline MA
Robert Scott Windeler - Annandale NJ

Lucent Technologies Inc. - Murray Hill NJ

G02B 616

385 28, 385127

A properly designed MOF can simultaneously exhibit large anomalous dispersion at visible and near infrared wavelengths and support numerous transverse spatial modes that are essentially decoupled from one another, even in the presence of significant perturbations. In a MOF that includes an inner cladding region comprising at least one thin layer of air holes surrounding a core region, the key is to achieve a relatively large wave vector mismatch between the lowest order modes by appropriate design of the size of the core region and of the effective refractive index difference between the core region and the inner cladding region. In accordance with one aspect of our invention, MOFs are designed to exhibit simultaneously relatively large anomalous dispersion and essentially decoupled transverse spatial modes by making the diameter of the core region less than about 6 m and the difference in effective refractive index between the core and cladding regions greater than about 0. 1 (10%). Preferably, the cladding region contains no more than 2 layers of air holes, and the distance between the nearest edges of adjacent air holes is less than about 1 m. MOFs with these features enable several embodiments of our invention.

6608952, Aug 19, 2003

Aug 15, 2001

09/929989

Benjamin John Eggleton - Summit NJ
Arturo Hale - New York NY
Charles Kerbage - Berkeley Heights NJ
Robert Scott Windeler - Annandale NJ

Fitel USA Corp. - Norcross GA

G02B 626

385 43

Embodiments of the invention include an optical fiber device such as a modulator, variable attenuator or tunable filter including an optical fiber having a core region, a cladding layer around the core region, and a controllable active material disposed in, e. g. , capillaries or rings formed the cladding layer. The active materials include, e. g. , electro-optic material, magneto-optic material, photorefractive material, thermo-optic material and/or materials such as laser dyes that provide tunable gain or loss. The application of, e. g. , temperature, light or an electric or magnetic field varies optical properties of the active material, which, in turn, varies or affects the propagation properties of optical signals in the device. The optical device includes a tapered region that causes the core mode to spread into the cladding region and, simultaneously, allows the active material to be relatively close to the propagated modes, thus allowing interaction between the active material and the propagating modes.

6658183, Dec 2, 2003

Oct 20, 2000

09/692955

Juhi Chandalia - Newtown Square PA
David John DiGiovanni - Montclair NJ
Benjamin John Eggleton - Summit NJ
Sandra Greenberg Kosinski - Murray Hill NJ
Xiang Liu - Eatontown NJ
Robert Scott Windeler - Annandale NJ
Chunhui Xu - Piscataway NJ

Lucent Technologies Inc. - Murray Hill NJ

G02B 626

385 48, 385 43, 264 124

The invention involves providing a microstructured fiber having a core region, a cladding region, and one or more axially oriented elements (e. g. , capillary air holes) in the cladding region. A portion of the microstructured fiber is then treated, e. g. , by heating and stretching the fiber, such that at least one feature of the fiber microstructure is modified along the propagation direction, e. g. , the outer diameter of the fiber gets smaller, the axially oriented elements get smaller, or the axially oriented elements collapse. The treatment is selected to provide a resultant fiber length that exhibits particular properties, e. g. , mode contraction leading to soliton generation, or mode expansion. Advantageously, the overall fiber length is designed to readily couple to a standard transmission fiber, i. e. , the core sizes at the ends of the length are similar to a standard fiber, which allows efficient coupling of light into the microstructured fiber length.

6467312, Oct 22, 2002

Jul 11, 2000

09/613320

Yoram De Hazan - Oley PA
John Burnette MacChesney - Lebanon NJ
Thomas Edward Stockert - Millburn NJ
Dennis J Trevor - Clinton NJ
Robert Scott Windeler - Annandale NJ

Fitel USA Corp. - Norcross GA

C03B 37025

65395, 65 172

The disclosed method of making microstructured optical fiber comprises providing a mold, with a multiplicity of elongate elements extending into the mold and being maintained in a predetermined spatial arrangement with respect to the mold. Silica-containing sol is introduced into the mold and is caused to or permitted to gel, such that a gel body results. After removing the elongate elements from the gel body and removing the gel body from the mold, the gel body is dried, sintered and purified, and the microstructured fiber is drawn from the sintered body.

6795617, Sep 21, 2004

Apr 30, 2003

10/426900

Mihaela Dinu - Freehold NJ
Charles Kerbage - Berkeley Heights NJ
Xiang Liu - Marlboro NJ
Francesco Quochi - Quartu SantElena, IT
Robert S. Windeler - Annandale NJ
Chunhui Xu - Ithaca NY

Lucent Technologies Inc. - Murray Hill NJ

G02B 626

385 42

An optical device including a microstructured fiber pumped by an external pulsed-light source. In one embodiment, the microstructured fiber includes two waist regions functioning as a tunable attenuator and a wavelength shifter, respectively. Output wavelength of the optical device is selected by attenuating the pump light in the first waist region and then passing the light through the second waist region to shift the pump energy to a new spectral band. An optical device of the invention configured with two or more microstructured fibers generates two or more synchronized pulsed beams, each at a different characteristic wavelength. Certain embodiments of the invention provide an inexpensive, compact, energy-efficient multi-wavelength synchronized pulsed-light source.

6654522, Nov 25, 2003

Apr 23, 2002

10/128622

Juhi Chandalia - Newton Square PA
David John DiGiovanni - Montclair NJ
Benjamin John Eggleton - Summit NJ
Sandra Greenberg Kosinski - Murray Hill NJ
Robert Scott Windeler - Annandale NJ

Lucent Technologies Inc. - Murray Hill NJ

G02B 626

385 48, 385125, 264 124

The invention involves providing a microstructured fiber having a core region, a cladding region, and one or more axially oriented elements (e. g. , capillary air holes) in the cladding region. A portion of the microstructured fiber is then treated, e. g. , by heating and stretching the fiber, such that at least one feature of the fiber microstructure is modified along the propagation direction, e. g. , the outer diameter of the fiber gets smaller, the axially oriented elements get smaller, or the axially oriented elements collapse. The treatment is selected to provide a resultant fiber length that exhibits particular properties, e. g. , mode contraction leading to soliton generation, or mode expansion. Advantageously, the overall fiber length is designed to readily couple to a standard transmission fiber, i. e. , the core sizes at the ends of the length are similar to a standard fiber, which allows efficient coupling of light into the microstructured fiber length.

2003020, Nov 6, 2003

Jul 4, 2001

09/899631

Robert Atkins - Millington NJ, US
David DiGiovanni - Montclair NJ, US
Kyunghwan Oh - Somerset NJ, US
William Reed - Summit NJ, US
Paul Westbrook - Chatham NJ, US
Robert Windeler - Annandale NJ, US

G02B006/34, G02B006/16

385/037000, 385/123000

Embodiments of the invention include a singlemode optical fiber having an antimony (Sb) doped core region, a suitable cladding region formed on the core region, and one or more gratings written in the optical fiber. Optical fibers manufactured according to embodiments of the invention provide faster growth of grating strength, higher thermal stability, and longer photosensitive wavelength compared to conventional Ge doped silica optical fibers. The optical fiber is fabricated for applications such as fiber grating applications where the index of the core is modulated by UV radiation. Also, the addition of Sb in the core region of the singlemode optical fiber provides higher temperature (e.g., greater than 100° C.) applications of fiber gratings and a reduced degradation of the band rejection efficiency. Also, the optical fibers are more conducive to direct and non-destructive grating writing over polymer jackets with a longer photosensitive wavelength in the UV range.

7110646, Sep 19, 2006

Mar 8, 2002

10/094093

Benjamin John Eggleton - Summit NJ, US
Charles Kerbage - Berkeley Heights NJ, US
Peter Mach - Berkeley Heights NJ, US
John A. Rogers - New Providence NJ, US
Robert Scott Windeler - Annandale NJ, US

Lucent Technologies Inc. - Murray Hill NJ
Fitel USA Corp. - DE

G06C 1/00

385123

A tunable optical fiber device comprises a length of fiber having a core having a certain refractive index; a cladding peripherally surrounding the core with a refractive index less than the refractive index of the core; and at least one hollow region disposed within the cladding in proximity to the core or within the core itself. Fluid (typically liquid) controllably moved within the hollow region modifies the effective index of the fiber and thereby tunes its characteristics.

2004011, Jun 17, 2004

Dec 16, 2002

10/320193

David DiGiovanni - Montclair NJ, US
Robert Windeler - Annandale NJ, US

C03B037/018

065/397000, 065/398000, 065/419000

Fluorine doping of trench layers in MCVD preforms is enhanced by exposing a silica soot layer, produced by MCVD, to a fluorine-containing gas at high pressure. The high pressure exposure is integrated into the MCVD process.

2006017, Aug 17, 2006

Apr 13, 2006

11/403354

David Digiovanni - Montclair NJ, US
Robert Windeler - Annandale NJ, US

C03B 37/07, C03B 37/018, C03B 37/075

065379000, 065399000, 065417000

Fluorine doping of trench layers in MCVD preforms is enhanced by exposing a silica soot layer, produced by MCVD, to a fluorine-containing gas at high pressure. The high pressure exposure is integrated into the MCVD process.