11 October 2013 Fully etched grating coupler with low back reflection
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Proceedings Volume 8915, Photonics North 2013; 89150U (2013) https://doi.org/10.1117/12.2037955
Event: Photonics North 2013, 2013, Ottawa, Canada
Abstract
A fully-etched grating coupler with improved back re ection and bandwidth is demonstrated in this paper. It can also be made in compact patterns with much smaller footprints than conventional, fully-etched grating couplers with long adiabatic tapers. Sub-wavelength gratings were employed to form the e ective index areas between the major gratings. Our grating has a measured 3-dB bandwidth of 64.37 nm with a back re ection of -14 dB.
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Yun Wang, Wei Shi, Xu Wang, Jonas Flueckiger, Han Yun, Nicolas A. F. Jaeger, Lukas Chrostowski, "Fully etched grating coupler with low back reflection", Proc. SPIE 8915, Photonics North 2013, 89150U (11 October 2013); doi: 10.1117/12.2037955; https://doi.org/10.1117/12.2037955
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