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Ultra-Efficient CMOS Fiber-to-Chip Grating Couplers

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Abstract

Apodized bi-level fiber-to-chip grating couplers, designed using a complex-wavevector band-structure approach, are demonstrated in a commercially available, monolithic SOI CMOS process achieving 92% (0.36dB) coupling efficiency.

© 2016 Optical Society of America

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