Superstrate index control of waveguide grating reflectivity

Abstract

Waveguide gratings reflecting at wavelengths near 1530nm were fabricated by laser ablation of thin Ta₂O₅ films on glass waveguides. Variation of reflectivity from 0.3dB to 34dB was achieved by alteration of the superstrate refractive index.

CLEO/Pacific Rim 2001 Chiba Japan 15-19 Jul (2001) Vol.1 pp.100-101

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