Lawrence Livermore National Security, LLC

Cody Wren Mart

Michael Joseph Messerly

Jay Walter Dawson

Nick Schenkel

Charles Xiao Yu

Andrew Lange

Paul H Pax

Tayyab Ishaq Suratwala

Victor V Khitrov

Selim Elhadj

Nicholas P Calta

Rebecca Dylla-Spears

Koroush Sasan

Robert Mellors

Michael Runkel

The present technology provides large mode area optical fibers engineered to have normal dispersion around 1600 nm, enabling high power Raman amplification at eye safer wavelengths. The fibers can have a main core and one or more side cores disposed relative to the main core so that modes of the main core and the one or more side cores hybridize into supermodes with modified dispersion.

Large-mode-area optical fibers and optical fiber amplifiers in the eye-safe regime

A method is disclosed of making a coated optical fiber. The method may involve drawing a preform through a furnace to create a fiber having a desired diameter and cross sectional shape. The fiber is then drawn through a slurry, wherein the slurry includes elements including at least one of metallic elements, alloy elements or dielectric elements, and the slurry wets an outer surface of the fiber. As the fiber is drawn through the slurry, it is then drawn through a forming die to impart a wet coating having a desired thickness on an outer surface of the fiber. The wet fiber is then drawn through an oven or ovens configured to heat the wet coating sufficiently to produce a consolidated surface coating on the fiber as the fiber exits the oven or ovens.

Coated optical fiber and method of making same

The present disclosure relates to a method for forming a glass, ceramic or composite material. The method may involve initially forming a plurality of tubes and then performing a coating operation to coat the plurality of tubes with materials containing metal or metalloid elements, including inorganic compounds, organometallic compounds, or coordination complexes to form coated tubes. The method may further include performing at least one of a thermal operation or a thermochemical operation on the coated tubes to form a solid glass, ceramic, or composite structure with dimensions representing at least one of a rod or fiber.

System and method for optical fiber preform preparation via high-surface-area coating

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Livermore, CA, United States of America

Cody Wren Mart