Corning Incorporated

Corning Research & Development Corporation

Corning Cable Systems

Corning Optical Communications LLC

Scott Robertson Bickham

Ming-Jun Li

Pushkar Tandon

Dana Craig Bookbinder

Snigdharaj Kumar Mishra

Ruchi Sarda Tandon

Xin Chen

Kevin Wallace Bennett

Daniel Aloysius Nolan

Michael B Cain

Stephan Lvovich Logunov

Edward John Fewkes

John Steele Abbott, Iii

Qi Wu

Joel P Carberry

Manuela Ocampo

V Srikant

Sergey Yurevich Ten

George Edward Berkey

Dale Robert Powers

Dmitri Vladislavovich Kuksenkov

Bin Yang

Shenping Li

Aramais Robert Zakharian

Andrey Kobyakov

Ching-Kee Chien

Denis Donlagic

Mark Alan McDermott

Daiping Ma

Martin Hempstead

James Phillip Luther

Shandon Dee Hart

William Carl Hurley

Daniel Warren Hawtof

Douglas Llewellyn Butler

James Andrew West

Weijun Niu

Ji Wang

Andy Fenglei Zhou

John David Downie

Gaozhu Peng

Richard Edward Wagner

Michael James Winningham

Jeffery Scott Stone

Lewis Kirk Klingensmith

Donnell Thaddeus Walton

Leonard Charles Dabich, Ii

Dipakbin Qasem Chowdhury

Rostislav Radiyevich Khrapko

Pamela A Hajcak

Craig John Mancusi Ungaro

Phong Diep

Steven S Rosenblum

Randy LaRue McClure

Lei Yuan

Joan Diana Patterson

Ulrich Wilhelm Heinz Neukirch

Joseph Edward McCarthy

Shiva Kumar

Kevin Alton Lewis

Peter Joseph Ronco

Jeffrey Coon

James M Grochocinski

Randy Lee Bennett

Robert Arnold Knowlton

Bryan William Wakefield

Upendra H Manyam

A Boh Ruffin

John Douglas Coleman

Radawan Ripumaree

Yangbin Chen

Radawan Hall

Richard Lynton Wiggins

Kangmei Li

Mark Christian Sanson

Jason Edward Hurley

Richard Stephen Vodhanel

Ximao Feng

Andrey Evgenievich Korolev

Darren Andrew Stainer

Thomas A Hanson

Shudong Xiao

Ming Jun Li

Wen-Lung Kuang

Simit Mayank Patel

Michael Vasilyev

Rostislav Radievich Khrapko

Vladimir Nikolaevich Nazarov

Lisa Larae Hepburn

Arash Abedijaberi

Chukwuemeka Benneth Onuh

Andrew Jay Effenberger, Jr

Richard Edward Rebis

Thomas J Atwood

Ian David Cook

Amanda Lee Billings

Oleksandr Kogan

Percil Watkins

Kimberly Ann Wilbert

Aleksandra Boskovic

An optical fiber including a core region having an outer radius rin a range from 4.0 μm to 8.0 μm and a relative refractive index profile Δwith a maximum relative refractive index Δin a range from 0.20% to 0.50%, a cladding region comprising a trench cladding region having a minimum relative refractive index Δgreater than −0.60% and less than −0.10%, and a trench volume greater than 30%-μmand an outer cladding region having a relative refractive index Δin a range from −0.10% to 0.10%. The optical fiber also including a primary coating and a secondary coating. The optical fiber has a mode field diameter at 1310 nm of greater than 8.8 microns, a cable cutoff wavelength of less than 1260 nm, a zero dispersion wavelength between 1300 nm and 1324 nm, and low macrobend loss at 1550 nm.

Compliant optical fiber

Methods for classifying a core cane of an multimode optical fiber are disclosed. In embodiments, the method includes determining a relative refractive index profile Δ(r) of the core cane; fitting the relative refractive index profile Δ(r) to an alpha profile Δ(r) defined by: where Δis a relative refractive index at a longitudinal centerline of the core cane, αis a core shape parameter, and ais an outer radius of the core cane; generating a non-alpha residual profile Δ(r)=Δ(r)−Δ(r) for the core cane; computing one or more metrics from Δ(r), and using the one or metrics in a classification of the core cane, the classification comprising a prediction of whether a bandwidth at a pre-determined wavelength of an optical fiber drawn from a preform comprising the core cane exceeds a pre-determined bandwidth at the pre-determined wavelength.

Multimode optical fiber core cane classification method

The present disclosure relates to a process by which an optical fiber array is cleaved with a laser-cleaving apparatus. The coating material is stripped or removed from a section of an optical fiber array; a coated or ribbonized section of the optical fiber array is secured in a holder; the holder is aligned inside the laser-cleaving apparatus; the laser cleaves the stripped ends of the fibers in the optical fiber array; the laser-cleaved ends of the optical fibers are then mechanically separated to remove the free ends from the optical fibers in the optical fiber array, leaving a cleaved array of optical fibers. The cleaving process enables the optical fiber array to be cleaved at flexible locations along an optical fiber ribbon or optical fiber cable with no swelling, minimal cleave angle variation across the cores of the optical fibers, a controlled surface roughness of the optical fiber end-faces, and high process yield.

Laser-cleaving of an optical fiber array with controlled cleaving angle

A dual-core optical fiber include a first waveguide comprising a first core longitudinal centreline and a second waveguide comprising a second core longitudinal centreline. The first and second waveguides extend through a common cladding through comprising a longitudinal centerline and an outer radius Rthat is less than or equal to 45 μm. The first core longitudinal centerline and the second core longitudinal centerline are separated from one another by a waveguide-to-waveguide separation distance that is greater than or equal to 30 μm. A cross-talk between the first and second waveguides is less than or equal to −40 dB at 1310 nm, as measured over a length of 100 km of the dual-core optical fiber.

Reduced clad dual-core optical fibers for optical fiber cables and optical fiber interconnects

The optical fibers disclosed have single mode and few mode optical transmission for VCSEL-based optical fiber transmission systems. The optical fibers have a cable cutoff wavelength λof equal to or below 1260 nm thereby defining single mode operation at a wavelength in a first wavelength range greater than 1260 nm and few-mode operation at a wavelength in a second wavelength range from 970 nm and 1070 nm. The mode-field diameter is in the range from 9.3 microns to 10.9 microns at 1550 nm. The optical fibers have an overfilled bandwidth OFL BW of 1 GHz·km to 3 GHz·km at the at least one wavelength in the second wavelength range. VCSEL based optical transmission systems and methods are disclosed that utilize both single core and multicore versions of the optical fiber.

Optical fibers for single mode and few mode VCSEL-based optical fiber transmission systems

An optical fiber is provided that includes a core region and a cladding region. The core region is formed of silica glass doped with chlorine and/or an alkali metal. The cladding region surrounds the core region and includes an inner cladding directly adjacent to the core region, an outer cladding surrounding the inner cladding, and a trench region disposed between the inner cladding and the outer cladding in a radial direction. The trench region has a volume of about 30% Δ-micronor greater. Additionally, the optical fiber has an effective area at 1550 nm of about 100 micronor less.

Reduced diameter optical fiber with improved microbending

The optical fiber disclosed has a glass fiber including a core and a cladding. The core comprises silica glass doped with chlorine and having an outer radius rbetween 3.0 microns and 10.0 microns. The cladding has an outer radius rnot less than 50.0 microns. A primary coating surrounding the cladding has a thickness (r-r) between 5.0 microns and 20.0 microns, and an in situ modulus less than 0.30 MPa. A secondary coating surrounding the primary coating has a thickness (r-r) between 8.0 microns and 30.0 microns, a Young's modulus greater than 1500 MPa, and a normalized puncture load greater than 3.6×10g/micron. The optical fiber has a 22-meter cable cutoff wavelength less than 1530 nm, an attenuation at 1550 nm of less than 0.17 dB/km, and a bending loss at 1550 nm of less than 3.0 dB/turn.

Reduced coating diameter chlorine-doped silica optical fibers with low loss and microbend sensitivity

A coupled-core multicore optical fiber has a plurality of cores that are doped with alkali metals or chlorine to achieve low attenuation and a large effective area. The cores may be embedded in a common cladding region that may be fluorine doped. The cores may also be doped with chlorine, either with the alkali metals described above or without the alkali metals.

Ultra-low-loss coupled-core multicore optical fibers

An optical fiber is provided that includes a core region, a cladding region having a radius less than about 62.5 microns; a polymer coating comprising a high-modulus layer and a low-modulus layer, wherein a thickness of the low-modulus inner coating layer is in a range of 4 microns to 20 microns, the modulus of the low-modulus inner coating layer is less than or equal to about 0.35 MPa, a thickness of the high-modulus coating layer is in a range of 4 microns to 20 microns, the modulus of the high-modulus inner coating layer is greater than or equal to about 1.6 GPa, and wherein a puncture resistance of the optical fiber is greater than 20 g, and wherein a microbend attenuation penalty of the optical fiber is less than 0.03 dB/km, and wherein an outer diameter of the coated optical fiber is less than or equal to 175 microns.

Single-mode optical fiber with thin coating for high density cables and interconnects

The present disclosure relates to a process by which an optical fiber array or a single optical fiber is cleaved with a laser-cleaving apparatus. The coating material is stripped or removed from a section of an optical fiber array or single optical fiber; a coated or ribbonized section of the optical fiber array or the single optical fiber is secured in a holder; the holder is aligned inside the laser-cleaving apparatus; the laser cleaves the stripped ends of the fibers in the optical fiber array or the single optical fiber; the laser-cleaved ends of the optical fiber(s) are then mechanically separated to remove the free ends from the optical fibers in the optical fiber array or the single optical fiber, leaving a cleaved array of optical fibers or a single cleaved optical fiber. The cleaving process enables the optical fiber array or single optical fiber to be cleaved at flexible locations along an optical fiber ribbon, optical fiber, or optical fiber apparatus (e.g., cleaving can be performed close to a ferrule end face) with no swelling, minimal cleave angle variation across the cores of the optical fibers, a controlled surface roughness of the optical fiber end faces, and high process yield.

The optical fibers disclosed is a single mode optical fiber comprising a core region and a cladding region surrounding and directly adjacent to the core region. The core region can have a radius rin a range from 3 &#x3bc;m to 7 &#x3bc;m and a relative refractive index profile &#x394;having a maximum relative refractive index &#x394;in the range from 0.25% to 0.50%. The cladding region can include a first outer cladding region and a second outer cladding region surrounding and directly adjacent to the first outer cladding region. The first outer cladding region can have a radius r. The second outer cladding region can have a radius rless than or equal to 45 &#x3bc;m and comprising silica based glass doped with titania.

Reduced diameter single mode optical fibers with high mechanical reliability

The present disclosure provides optical fibers with an impact-resistant coating system. The fibers feature low attenuation. The coating system includes a primary coating and a secondary coating. The primary coating and secondary coating have reduced thickness to provide low-diameter fibers without sacrificing protection. The primary coating has high tear strength and is resistant to damage caused by mechanical force. The secondary coating has high puncture resistance. The outer diameter of the optical fiber is less than or equal to 190 &#x3bc;m.

Optical fiber cable with high fiber count

The optical fibers disclosed is a single mode optical fiber having a core region and a cladding region surrounding and directly adjacent to the core region. The core region can have a radius rin a range from 3.0 microns to 6.0 microns and a core volume Vless than 6.0%-micron. The cladding region can include a first outer cladding region and a second outer cladding region surrounding and directly adjacent to the first outer cladding region. The first outer cladding region can have a radius r, the second outer cladding region can have a radius rless than or equal to 65 microns and comprising silica based glass doped with titania. The disclosed single mode optical fiber can have a fiber cutoff wavelength &#x3bb;less than 1530 nm.

Single mode optical fibers with low cutoff wavelength high mechanical reliability

Growing community of inventors

Corning, NY, United States of America

Scott Robertson Bickham