Corning Incorporated

Corning Optical Communications LLC

Corning Research & Development Corporation

Ching-Kee Chien

Edward John Fewkes

Michael James Winningham

Michelle Dawn Fabian

Ruchi Sarda Tandon

Pushkar Tandon

Gregory F Jacobs

Yangbin Chen

Scott Robertson Bickham

Ming-Jun Li

Warren Welborn McAlpine

David Alan Seddon

Julian Latelle Greenwood, Iii

Bradley Jerome Blazer

Jason Clay Lail

David Wesley Chiasson

Roger A Allaire

Brandon Andrew Barnes

Adra Smith Baca

Gregory A Mills

Robert Clark Moore

Lung-Ming Wu

Randall Eugene Youngman

Christopher Mark Quinn

Huan-Hung Sheng

David Neal Schissel

Eric H Urruti

Edward F Murphy

John William Botelho

Frederic Christian Wagner

Youchun Shi

Adrienne M Powell-Johnson

Kenneth R Jones

Susan Marie Gasper

Edward J Sever

Amit Chawda

Anita S Hill

Jill Ann Cummings

Julian Latelle Greenwood

Warren Welborn Mcalpine

Disclosed here are embodiments of an optical fiber ribbon. In the optical fiber ribbon, a plurality of optical fibers are arranged in a row. The optical fibers are embedded in a primary matrix. The primary matrix comprises a base resin and an opacifier pigment. A secondary matrix is disposed around the primary matrix, and a layer of printing is disposed between the primary matrix and the secondary matrix. The secondary matrix has a contrast ratio of from 0.2 to 0.9 as measured according to ASTM D2805. Embodiments of a method of preparing an optical fiber ribbon are also disclosed in which optical fibers are arranged in a row and embedded in a primary matrix. Characteristics of the optical fibers is printed onto the primary matrix, and the primary matrix is coated with a secondary matrix having a contrast ratio of from 0.2 to 0.9 according to ASTM D2805.

Optical ribbon with printing between opaque primary layer and colored secondary layer

The present description provides reduced-diameter multimode optical fibers. The optical fibers include a reduced-diameter glass fiber and/or reduced-thickness coatings. The overall diameter of the optical fibers is less than 210 &#x3bc;m and examples with diameters less than 160 &#x3bc;m are presented. Puncture resistant secondary coatings enable thinning of the secondary coating without compromising protection of the glass fiber. The optical fibers are suitable for data center applications and features high modal bandwidth, low attenuation, low microbending sensitivity, and puncture resistance in a compact form factor.

Puncture-resistant reduced-diameter multimode optical fiber

An optical fiber includes an outer diameter less than 220 &#x3bc;m, a glass fiber that includes a glass core and a glass cladding, a primary coating, and a secondary coating. The glass cladding surrounds and is in direct contact with the glass core. The primary coating surrounds and is in direct contact with the glass fiber. The primary coating can have a Young's modulus less than 0.5 MPa and a thickness less than 30.0 &#x3bc;m. The secondary coating surrounds and is in direct contact with the primary coating. The secondary coating can have a thickness less than 27.5 m. A pullout force of the optical fiber can be less than a predetermined threshold when in an as-drawn state. The pullout force may increase by less than a factor of 2.0 upon aging the primary and secondary coatings on the glass fiber for at least 60 days.

Fiber coatings with low pullout force

Fiber coatings with low Young's modulus, low fiber pullout force for fibers in the as-drawn state, and small time-dependent increases in pullout force as the fiber ages. The fiber coatings are cured products of coating compositions that include an oligomer formed from an isocyanate, a hydroxy acrylate compound and a polyol. The oligomer includes a polyether urethane acrylate and a di-adduct compound. The reaction mixture used to form the oligomer includes a molar ratio of isocyanate:hydroxy acrylate:polyol of n:m:p, where when p is 2, n is in the range from 3.0 to 5.0 and m is in the range from 1.50n-3 to 2.50n-5. Control of the n:m:p ratio leads to compositions that, when cured, provide coatings and cured products having low Young's modulus, low pullout force on glass, and weak variations with time as the fiber ages.

An optical communication cable and related systems and methods are provided. The cable includes an adhesion control material between a reinforcement sheet and a cable jacket. The adhesion control material includes a carrier fluid and a particulate material dispersed in the carrier fluid. The method includes extruding a polymer material over the wrapped sheet of reinforcement material to form a cable jacket, and the adhesion control material is located between an outer surface of the wrapped reinforcement sheet and an inner surface of the cable jacket.

Optical fiber cable with adhesion control layer

A multi-purpose optical fiber with coating is provided. The optical fiber can function as a transmission fiber or as a coupling fiber for optical data links that features low coupling loss to silicon photonics lasers, VCSELs, single mode transmission fibers, multimode transmission fibers, and high speed receivers. The fiber includes a core, an optional inner cladding region, a depressed index cladding region, an outer cladding region, and a coating. The relative refractive index profile of the coupling fiber includes a small-radius core region with &#x3b1; profile and a depressed index cladding region that facilitates low bending loss and high bandwidth. The coating thickness and overall diameter of the fiber is small.

Coated low loss optical fiber with small diameter

An optical cable is provided. The optical cable includes a tubular, elongate body having an inner surface defining a cavity extending between first and second ends of the elongate body and an optical transmission element located with the cavity. The optical cable includes a coupling or bonding structure non-permanently and non-rigidly joining the outer surface of the optical transmission element to the elongate body at a plurality of periodic contact zones such that relative movement between the optical transmission element and the elongate body is resisted.

Optical fiber cable with internal periodic coupling structure

A method of removing a tight buffer coating from an optical fiber involves positioning an end section of the optical fiber next to an end of a tube, with at least a portion of the the end section including a primary coating and the tight buffer coating. The tube has an inner diameter greater than an outer diameter of the primary coating and an outer diameter less than an outer diameter of the tight buffer coating. The method also involves applying energy to heat the tight buffer coating, inserting the end section of the optical fiber into the tube so that the tight buffer coating contacts the end of the tube, and advancing the end section of the optical fiber along the tube. The tube removes the tight buffer coating from the primary coating as the end section of the optical fiber is advanced.

Methods of removing coating material from optical fibers

A hybrid cladding for optical fibers used in short data networks. The hybrid cladding surrounds a glass waveguide fiber and is surrounded by a primary coating. The hybrid cladding has low adhesion to the primary coating. The low adhesion permits stripping of the primary coating from the hybrid cladding without damaging the hybrid cladding and without leaving residue of the primary coating on the surface of the hybrid cladding. The hybrid cladding may be formed by curing a composition that includes a monomer with a radiation-curable functional group, a slip component, and a photoinitiator. The radiation-curable functional group may be a (meth)acrylate group. The slip component may contain silicon or silicone and may further contain a radiation-curable functional group. Silicone di(meth)acrylate is an illustrative slip component.

Optical fiber coating for short data network

The present invention relates to an optical fiber that includes a glass fiber and three or more coatings that encapsulate the glass fiber, where the three or more coatings include a primary coating in contact with said glass fiber, one or more intermediate coatings that surround the primary coating, and a secondary coating that surrounds the intermediate coatings. Both three-coating and four-coating systems are described that afford improve microbend performance.

Optical fiber containing multi-layered coating system

An optical fiber ribbon includes a plurality of optical fibers encapsulated within a matrix material, where the optical fiber coating(s) and the matrix material(s), and optionally any ink layers thereon, are characterized by compatible chemical and/or physical properties, whereby the fiber coating and matrix and any ink layers therebetween can be reliably stripped from the optical fibers to afford a suitable strip cleanliness. Novel ink formulations that can be used in the making of such fiber optic ribbons, methods of making such ribbons, and their use are also described.

Optical fiber ribbon with improved stripability

The invention includes a composition for an optical fiber coating. An inventive composition includes a non-thiol functional adhesion promoter and less than about 0.5 pph of a strength additive containing a thiol functional group. The invention further includes an optical fiber coated with the inventive composition. A second inventive composition includes a photo-polymerizable composition which contains an adhesion promoter and a non-silicon containing strength additive containing at least about one thiol functional group. A third inventive composition includes a photo-polymerizable composition which has a silane containing adhesion promoter and a strength additive containing at least about one halide functional group. The invention also includes an optical fiber coated with the inventive coating and methods of making an optical fiber including the inventive coating.

Optical fiber coating compositions

Two-layer protective coating system for glass surfaces is disclosed. The base coating comprises at least one polysaccharide, and the top coating has a lower solubility in water than the base coating. The coating system provides good protection against contaminants and glass chips, good removability in mild cleaning condition, and extra water resistance during process steps where water is used as a cooling agent.

Two-layer protective coating system for LCD glass

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Horseheads, NY, United States of America

Ching-Kee Chien