National Research Council of Canada. Information and Communication Technologies
2015 IEEE 12th International Conference on Group IV Photonics (GFP), 2015-8-26 - 28, Vancouver, BC, Canada
We present the first experimental demonstration of a new fiber-chip grating coupler concept that exploits the blazing effect by interleaving deep and shallow etch trenches to maximize directionality. The grating couplers were fabricated using both 193 nm deep-ultraviolet lithography and electron beam lithography. The measured peak fiber-chip coupling efficiency is -1.8 dB at a wavelength of 1550 nm, with a 3 dB bandwidth of 52 nm.
2015 IEEE 12th International Conference on Group IV Photonics (GFP): 203–204.