Abstract

The fabrication of flexible low-loss, thin-film, foil-based polymer waveguides with grating couplers employing a high-volume industrial roll-to-roll process is demonstrated. The embossed waveguides feature propagation losses of less than 1dB/cm (633 nm, TE polarization), bending losses of 0.40.8dB/360° for bending radii as small as 2 mm, and grating coupling efficiencies of up to 25%. In addition, the waveguides possess a thermo-optic coefficient of 1.58×1041/°C. The fabricated waveguides are promising candidates for short-distance data communication as well as for sensing applications.

© 2013 Optical Society of America

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