铌酸锂
算法
材料科学
计算机科学
分析化学(期刊)
化学
光电子学
色谱法
作者
Daoxin Dai,Bingcheng Pan,Hong Cao,Yishu Huang,zong wang,Kaixuan Chen,Huan Li,Zejie Yu
出处
期刊:Photonics Research
[The Optical Society]
日期:2022-02-22
卷期号:10 (3): 697-697
被引量:32
摘要
Fast electro-optic modulators with an ultracompact footprint and low power consumption are always highly desired for optical interconnects. Here we propose and demonstrate a high-performance lithium niobate electro-optic modulator based on a new 2 × 2 Fabry–Perot cavity. In this structure, the input and reflected beams are separated by introducing asymmetric multimode-waveguide gratings, enabling TE 0 − TE 1 mode conversion. The measured results indicate that the fabricated modulator features a low excess loss of ∼ 0.9 dB , a high extinction ratio of ∼ 21 dB , a compact footprint of ∼ 2120 μm 2 , and high modulation speeds of 40 Gbps OOK and 80 Gbps PAM4 signals. The demonstrated modulator is promising for high-speed data transmission and signal processing.
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