Breaking the bandwidth limit of a high-quality-factor ring modulator based on thin-film lithium niobate

Yu Xue, RanFeng Gan, kaixuan chen, gengxin chen, ziliang ruan, Junwei Zhang, Jie Liu, Daoxin Dai, Changjian Guo & Liu Liu
Growing global data traffic requires high-performance modulators with a compact size, a large bandwidth, a low optical loss, and a small power consumption. A careful trade-off among these parameters usually has to be made when designing such a device. Here, we propose and demonstrate an electro-optic ring modulator on the thin-film lithium niobate platform without compromising between any performances. The device exhibits a low on-chip loss of about -0.15dB with a high intrinsic Q-factor of...
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