IEEE Photonics Journal (Jan 2017)
Grating Coupler for an On-Chip Lithium Niobate Ridge Waveguide
Abstract
We report simulation and fabrication of a grating coupler for coupling of light between an on-chip lithium niobate ridge waveguide and an optical fiber. A grating coupler with an insertion loss of less than 10 dB for C-band frequencies (1530-1565 nm) was achieved.
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