143 citations · 242 across the 3 of their papers we have counts for
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physics.optics2021★ 1 cited
Vertical Injection and Wideband Grating Coupler Based on Asymmetric Grating Trenches
Md Asaduzzaman, Robert J. Chapman, Brett C. Johnson +1
A Silicon-on-insulator (SOI) perfectly vertical fibre-to-chip grating coupler is proposed and designed based on engineered subwavelength structures. The high directionality of the…
physics.optics2019★ 98 cited
High coupling efficiency grating couplers on lithium niobate on insulator
I. Krasnokutska, R. J. Chapman, J. -L. J. Tambasco +1
We demonstrate monolithically defined grating couplers in -cut lithium niobate on insulator for efficient vertical coupling between an optical fiber and a single mode waveguide.…