Efficient electro-optical tuning of an optical frequency microcomb on a monolithically integrated high-Q lithium niobate microdisk.

@article{Fang2019EfficientET,
  title={Efficient electro-optical tuning of an optical frequency microcomb on a monolithically integrated high-Q lithium niobate microdisk.},
  author={Zhiwei Fang and Haipeng Luo and Jintian Lin and Min Wang and Jianhao Zhang and Rongbo Wu and Junxia Zhou and Wei Chu and Tao Lu and Ya Cheng},
  journal={Optics letters},
  year={2019},
  volume={44 24},
  pages={
          5953-5956
        }
}
We demonstrate efficient tuning of a monolithically integrated lithium niobate (LN) microdisk optical frequency microcomb. Utilizing the high optical quality (Q) factor (i.e., Q∼7.1×106) of the microdisk, the microcomb spans over a spectral bandwidth of ∼200nm at a pump power as low as 20.4 mW. Combining the large electro-optic coefficient of LN and the optimum design of the geometry of microelectrodes, we demonstrate electro-optical tuning of the comb with a spectral range of 400 pm and a… 
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19 Citations
Background Citations
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Methods Citations
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19 Citations

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High-quality-factor optical microresonators fabricated on lithium niobate thin film with an electro-optical tuning range spanning over one free spectral range [Invited]
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High-efficiency electro-optic tuning of microresonators both for TE and TM polarizations is important for versatile advanced photonic applications. This work demonstrates a new device design to…
Microresonators in Lithium Niobate Thin Films
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We report fabrication and characterization of ultra-low loss optical waveguides and optical micro-resonators on lithium niobate on insulator with excellent surface qualities. We demonstrate…
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TLDR
This work demonstrates, both numerically and experimentally, that the mode-field mismatch between an optical fiber and the single-mode lithium niobate waveguide can be solved with a tapered single mode fiber of an optimized mode field profile.
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Crystalline lithium niobate (LN) is an important optical material because of its broad transmission window that spans from ultraviolet to mid-infrared and its large nonlinear and electro-optic…
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