Efficient broadband silicon-on-insulator grating coupler with low backreflection
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Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System
Published on: July 18, 2015
Neil Na1, Harel Frish, I-Wei Hsieh
1Intel Corporation, 2200 Mission College Blvd, Santa Clara, California 95054, USA. yun-chung.n.na@intel.com
Optics Letters
|June 3, 2011
Abstract:
We design and fabricate an efficient broadband grating coupler on a 400 nm thick silicon-on-insulator wafer. The measured coupling loss is 3 dB when coupling to a single-mode fiber at 1310 nm wavelength with TE polarization. The spectral FWHM and backreflection are determined to be 58 nm and -27 dB, respectively.
