Corning Incorporated

Corning Research & Development Corporation

Jason Roy Grenier

Kristopher Allen Wieland

Sergio Tsuda

Davide Domenico Fortusini

Sasha Marjanovic

Jonathan David Pesansky

Lars Martin Otfried Brusberg

Ming Ying

Bertrand Paris

A method of laser bonding glass to metal foil includes contacting a first glass substrate with a first metal foil to create a first contact location; directing a laser beam on the first contact location to bond the first glass substrate to the first metal foil; contacting a second glass substrate with a second metal foil to create a second contact location; and directing the laser beam on the second contact location to bond the second glass substrate to the second metal foil, wherein the first metal foil and the second metal foil each have a thickness from 5 μm to 100 μm, and wherein the laser beam comprises a pulsed laser comprising: a pulse energy from 2.8 μJ to 1000 μJ; and a wavelength such that the first and second glass substrates are substantially transparent to the wavelength.

Laser bonding of glass to thin metal foil

The methods of singulating an optical waveguide sheet that supports sheet optical waveguides include irradiating the optical waveguide sheet with a focused laser beam comprising ultrafast light pulses to form within the body of the optical waveguide sheet modified regions, which along with unmodified regions, that define a singulation line. The modified regions define modified sections that are spaced apart by the unmodified sections, which reside at locations of the sheet optical waveguides. The optical waveguide sheet is separated along the singulation line to form an optical waveguide substrate with substrate waveguides formed by sections of the sheet optical waveguides. The optical waveguide substrate has an end face with both smooth and rough sections. The substrate waveguides have end surfaces that terminate at the smooth sections, thereby enabling low-loss optical coupling to other optical components.

Methods of singulating optical waveguide sheets to form optical waveguide substrates

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Horseheads, NY, United States of America

Jason Roy Grenier