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Conferences > OEDI > 2014 > OF4A > OF4A.4

High-performance and compact polarization-independent grating coupler

Feiya Zhou, Jing Dai, Minming Zhang, and Deming Liu

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Abstract

We propose a broadband polarization-independent grating coupler with etched triangular grooves on a silicon-on-insulator (SOI) wafer. A peak coupling efficiency of −3 dB and an extreme large 1 dB bandwidth of 220 nm are achieved simultaneously. The PDL performance can be within 0.1dB in 1490 nm and 1550 nm band.

© 2014 Optical Society of America

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