Ultrafast Laser Fabrication of Bragg Waveguides in GLS Chalcogenide Glass
Department of Electrical and Computer Engineering University of Pittsburgh,, Pittsburgh, Oxford OX1 3PJ, PA
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We present work on the fabrication of Bragg waveguides in gallium-lanthanum-sulfide chalcogenide glass using an ultrafast laser. Waveguides were written with a single pass while modulating the writing beam. The spatial and temporal profile of the writing beam was ontrolled during waveguide fabrication in order to control the shape and size of the waveguide cross-section.
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