Over 100 million Q silicon nitride Fabry-Perot Bragg nanoresonators enabled by advanced tapered gratings.

We report new, to the best of our knowledge, advances in Fabry-Perot Bragg grating nanoresonators on low-loss silicon nitride (Si3N4). Building on a previous demonstration of an intrinsic quality factor Qin of 19.3 million with 1.4 dB/m propagation l…

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