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arXiv · 1909.00399

Efficient Electro-optical Tuning of Optical Frequency Microcomb on a Monolithically Integrated High-Q Lithium Niobate Microdisk

Zhiwei Fang·Haipeng Luo·Jintian Lin·Min Wang·Jianhao Zhang·Rongbo Wu·Junxia Zhou·Wei Chu·Tao Lu·Ya Cheng
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Abstract

We demonstrate efficient tuning of a monolithically integrated lithium niobate microdisk (LN) optical frequency microcomb. Utilizing the high optical quality (Q) factor (i.e., Q~7.1*10^6) of the microdisk, the microcomb spans over a spectral bandwidth of ~200 nm at a pump power as low as 20.4 mW. Combining the large eletro-optic coefficient of LN and optimum design of the geometry of microelectrodes, we demonstrate electro-optical tuning of the comb with a spectral range of 400 pm and a tuning efficiency of ~38 pm/100V.

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Zhiwei Fang, Haipeng Luo, Jintian Lin, Min Wang, Jianhao Zhang, Rongbo Wu, Junxia Zhou, Wei Chu, Tao Lu, Ya Cheng. 2019-09-01. Efficient Electro-optical Tuning of Optical Frequency Microcomb on a Monolithically Integrated High-Q Lithium Niobate Microdisk. https://doi.org/10.1364/ol.44.005953

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