论文信息 - Ultra-low-loss single-mode Si3N4 waveguides with 0.7 dB/m propagation loss

Ultra-low-loss single-mode Si3N4 waveguides with 0.7 dB/m propagation loss

We report an approach to make ultra-low-loss waveguides using fixed-index-contrast stoichiometric Si<inf>3</inf>N<inf>4</inf>. A record low single-mode propagation loss of 0.70 ± 0.02 dB/m was achieved while multi-mode designs have fundamental mode loss as low as 0.43 ± 0.04 dB/m.

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