Abstract

We demonstrate the fabrication of a unique optical device, the single leakage-channel grating coupler, using sol-gel techniques. Design specifications are outlined to establish the material criteria for the sol-gel compositions. Material choice and preparation are described. We evaluate the characteristics and performance of the single leakage-channel grating coupler by comparing the predicted and the measured branching ratios. The branching ratio of the solution-derived device is within 3% of the theoretically predicted value.

© 1995 Optical Society of America

Design and fabrication of a single leakage-channel grating coupler

Ronald L. Roncone, Lifeng Li, Keith A. Bates, James J. Burke, Lori Weisenbach, and Brian J. J. Zelinski
Appl. Opt. 32(24) 4522-4528 (1993)

Single-leakage-channel grating couplers: comparison of theoretical and experimental branching ratios

Ronald L. Roncone, Lifeng Li, and John C. Brazas
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