#  High-Performance Electro-Optic Devices 

 



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Lithium Niobate is a material with a wide-range of applications in optical and microwave technologies. One of its unique property is the large second-order susceptibility (30pm/V). This allows one to use LN build up efficient electro-optical devices. Our recent breakthrough in the thin-film lithium niobate leads to a variety of high-performance electro-optic (EO) devices.

**EO modulator \[Cheng Wang, et al. Nature 562, 101 (2018)\]:** We demonstrate electro-optic modulators with high bandwidth (>100 GHz), CMOS-compatible voltages, and low-loss, which allows data rates up to 210 gigabits per second.

   ![modulator](/sites/g/files/omnuum6446/files/styles/hwp_1_1__720x720_scale/public/nano-optics/files/modulator_1.png?itok=0exRD5t-) 

 

**EO frequency shifter and beam splitter \[Yaowen Hu, et al. Nature 599, 587 (2021)\]:** We demonstrate electro-optic frequency shifters and beam splitters with high efficiency (90%), high shift ratio (>99%), high frequency (up to 30 GHz), and low loss. We also show cascaded frequency shifters which allows one to shift the frequency of light 120 GHz using only a continous and single-tone microwave at 30 GHz.

   ![shifter_news](/sites/g/files/omnuum6446/files/styles/hwp_1_1__720x720_scale/public/nano-optics/files/tmp.jpg?itok=WozD68Z2)