Corning Incorporated

Corning Optical Communications LLC

Dawes, Steven Bruce

Kouzmina, Inna Igorevna

Bookbinder, Dana Craig

Tandon, Pushkar

Ocampo, Manuela

Li, Ming-jun

Manuela Ocampo

Dana Craig Bookbinder

Pushkar Tandon

Ming-Jun Li

Steven Bruce Dawes

Inna Igorevna Kouzmina

Stephan Lvovich Logunov

Scott Robertson Bickham

Snigdharaj Kumar Mishra

Joan Diana Patterson

David Alan Seddon

Adra Smith Baca

Weiguo Miao

James William Zimmermann

Richard Curwood Peterson

Brandon Robert Williamson

Michael Lesley Sorensen

Yangbin Chen

Kevin Alton Lewis

Kevin Wallace Bennett

Peter Gerard Wigley

Ruchi Sarda Tandon

Michelle Dawn Fabian

James Robert Matthews

Michael Edward DeRosa

Emanuela Gallo

Trista Nicole Hesch

Embodiments of a light diffusing device with a color conversion layer are disclosed. Specifically the color conversion layer includes a luminophore that converts light from a higher wavelength to a lower wavelength.

Light diffusing device with color conversion and related light system

A ceramic and polymer composite including: a first continuous phase comprising a sintered porous ceramic having a solid volume of from 50 to 85 vol % and a porosity or a porous void space of from 50 to 15 vol %, based on the total volume of the composite; and a second continuous polymer phase situated in the porous void space of the sintered porous ceramic. Also disclosed is a composite article, a method of making the composite, and a method of using the composite.

Ceramic and polymer composite, methods of making, and uses thereof

Small-radius coated optical fibers having large mode field diameter and low bending losses. The coated fiber may have an outer radius of 110 &#x3bc;m or less, while providing a mode field diameter of 9.0 &#x3bc;m or greater and a bending loss when wrapped about a 15 mm mandrel of 0.5 dB/km or less at wavelength of 1550 nm. The coated fiber may have a mode field diameter of 9.2 &#x3bc;m or greater and may have a bending loss at 1550 nm of 0.25 dB/km or less when wrapped about a 20 mm mandrel or a bending loss at 1550 nm of 0.02 dB/km or less when wrapped about a 30 mm mandrel.

Low diameter optical fiber

A light diffusing optical fiber includes a glass core, a cladding, a phosphor layer surrounding the cladding, and a plurality of scattering structures positioned within the glass core, the cladding, or both. The phosphor layer includes two or more phosphors and is configured to convert guided light diffusing through the phosphor layer into emission light such that the color of the emission light has a chromaticity within a u'-v&#x2032; chromaticity region on a CIE 1976 chromaticity space defined by: a first u&#x2032;-v&#x2032; boundary line and a second u&#x2032;-v&#x2032; boundary line that extend parallel to a planckian locus at a distance of &#xb1;0.02 Duv from the planckian locus, a third u&#x2032;-v&#x2032; boundary line that extends along an isothermal line for a correlated color temperature of about 2000 K, and a fourth u&#x2032;-v&#x2032; boundary line that extends along an isothermal line for a correlated color temperature of about 10000 K.

Light diffusing optical fibers for emitting white light

A coating composition containing a radiation-curable component, a photoinitiator, and a UV absorber is described. The coating composition may be applied to an optical fiber and cured to form a coating. The UV absorber provides a protective function by inhibiting unintended curing of the coating that may occur upon exposure of the fiber to UV light during fiber processing. The spectral overlap of the photoinitiator and UV absorber is minimized to permit efficient photoinitiation of the curing reaction over one or more wavelengths. Photoinitiation may be excited by an LED source with a peak emission wavelength in the range from 360 nm-410 nm.

Optical fiber coating and composition with UV-absorbing additive

A light-diffusing optical fiber that provides a symmetric intensity distribution of forward and backward scattered light is described. The fiber includes a secondary coating that contains scattering centers. Control of the thickness of the secondary coating and concentration of scattering centers provides control over the distribution of scattered intensity. More symmetric distributions of scattered light intensity are realized by increasing the thickness of the secondary coating and/or the concentration of scattering centers in the secondary coating. Representative scattering centers include oxide nanoparticles.

Coating for light-diffusing optical fibers

Ceramic and polymer composite, and uses thereof

A crush resistant optical cable and/or crush resistant optical fiber buffer tube are provided. The cable generally includes a tube having at least one layer formed from a first material and an optical fiber located within a channel of the first tube. The buffer tube is configured to protect optical fibers from crush or impact events through a cushioning action. For example, the first material may be a polymer material having modulus of elasticity of less than 200 MPa, and the layer of the tube acts as a compliant cushioning layer at least partially contacting and surrounding an outer surface of the optical fiber when radially directed forces are applied to the outer surface of the tube.

Optical fiber cable with impact resistant buffer tube

A flame retardant optical fiber is provided. The flame retardant optical fiber includes a glass core, a cladding surrounding the glass core and a primary coating adhered to the cladding. The flame retardant optical fiber also includes a secondary coating surrounding the primary coating, wherein the secondary coating is formed from a coating composition that is substantially free of an oligomeric component and that comprises a flame retardant composition including a flame retardant material.

Flame-retardant optical fiber coating

Optical fibers having a mode field diameter at 1310 nm of at least 8.8 &#x3bc;m, wire mesh covered drum microbending losses at 1550 nm less than 0.03 dB/km, and a 2 m cutoff wavelength less than 1320 nm. The fibers may include a central core region, an inner cladding region, an outer cladding region, a primary coating with an in situ modulus less than 0.20 MPa and glass transition temperature less than &#x2212;35&#xb0; C., and a secondary coating with an in situ modulus greater than 1500 MPa. The fibers may further include a depressed index cladding region. The relative refractive index of the central core region may be greater than the relative refractive index of the outer cladding region may be greater than the relative refractive index of the inner cladding region. The fibers may be produced at draw speeds of 30 m/s or greater.

Optical fiber with large mode field diameter and low microbending losses

An crush resistant optical cable and/or crush resistant optical fiber buffer tube are provided. The cable generally includes a tube having at least one layer formed from a first material and an optical fiber located within a channel of the first tube. The buffer tube is configured to protect optical fibers from crush or impact events through a cushioning action. For example, the first material may be a polymer material having modulus of elasticity of less than 200 MPa, and the layer of the tube acts as a compliant cushioning layer at least partially contacting and surrounding an outer surface of the optical fiber when radially directed forces are applied to the outer surface of the tube.

Fiber coatings with low Young's modulus and high tear strength are realized with coating compositions that include an oligomeric material formed from an isocyanate, a hydroxy acrylate compound and a polyol. The oligomeric material includes a polyether urethane acrylate and a di-adduct compound, where the di-adduct compound is present in an amount of at least 2.35 wt %. The reaction mixture used to form the oligomeric material may include a molar ratio of isocyanate:hydroxy acrylate:polyol of n:m:p, where n may be greater than 3.0, m may be between n&#x2212;1 and 2n&#x2212;4, and p may be 2. Young's modulus and tear strength of coatings made from the compositions increase with increasing n. Coatings formed from the present oligomers feature high tear strength for a given Young's modulus.

Fiber coatings with low young's modulus and high tear strength

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Corning, NY, United States of America

Manuela Ocampo