Schott Ag

Jan Philipp Steigleder

Bernd Schultheis

Frank-Thomas Lentes

Robert Hettler

Hubertus Russert

Karin Naumann

Norbert Greulich-Hickmann

Martin Cramer

Wee Kiat Chai

Holger Werner

Bernhard Hunzinger

Julia Weisshuhn

Christian Schwedler

Monika Bürkner-Brigaldino

A multi-fiber light guide includes: light guiding fibers, each fiber including an elongated glass core; a glass cladding, the cores being surrounded by the cladding to form a rigid and continuous glass element, the cores having a higher refractive index than the cladding such that light can be guided by a total reflection along the cores, which end in two abutting faces of the glass element such that light can be guided along the cores from one abutting face to the other abutting face; and an ion exchange layer at each of the abutting faces, the glass of the cores and the glass of the cladding including alkali ions, which are at least partly exchanged by alkali ions of a higher atomic number within the ion exchange layer at the abutting faces, the exchanged alkali ions within the ion exchange layer imparting a compressive stress at the abutting faces.

Multi-fiber light guide, device with a multi-fiber light guide and method for producing the same

A drawn glass element for producing glass optical waveguides is provided. The element has two first length portions with a first cross-sectional area and which define the two ends of the glass element; a second, intermediate length portion between the two first length portions, which has a second cross-sectional area smaller than the first cross-sectional area; a first transition portion between the intermediate length portion and one of the first length portions; and a second transition portion between the intermediate length portion and another of the first length portions. The first and second transition portions have a cross-sectional area that steadily changes and merges from the first cross-sectional area into the second cross-sectional area.

Glass optical waveguide with variable cross section

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Budenheim, Germany

Jan Philipp Steigleder