Journal
OPTICS LETTERS
Volume 44, Issue 3, Pages 618-621Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.44.000618
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- Air Force Office of Scientific Research (AFOSR) Multidisciplinary University Research Initiative (MURI) Program [FA9550-17-1-0071]
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This Letter presents, to the best of our knowledge, the first hybrid Si3N4-LiNbO3-based tunable microring resonator where the waveguide is formed by loading a Si3N4 strip on an electro-optic (EO) material of X-cut thin-film LiNbO3. The developed hybrid Si3N4-LiNbO3 microring exhibits a high intrinsic quality factor of 1.85 x 10(5), with a ring propagation loss of 0.32 dB/cm, resulting in a spectral linewidth of 13 pm, and a resonance extinction ratio of similar to 27 dB within the optical C-band for the transverse electric mode. Using the EO effect of LiNbO3, a 1.78 pm/V resonance tunability near 1550 nm wavelength is demonstrated. (C) 2019 Optical Society of America
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