铌酸锂
材料科学
光学
干涉测量
氮化硅
光电子学
迈克尔逊干涉仪
硅
带宽(计算)
调制(音乐)
光调制器
相位调制
物理
电信
计算机科学
相位噪声
声学
作者
Xingrui Huang,Yang Liu,Zezheng Li,Huan Guan,Qingquan Wei,Manqing Tan,Rongqing Tan
出处
期刊:Optics Letters
[The Optical Society]
日期:2021-06-03
卷期号:46 (12): 2811-2811
被引量:13
摘要
We propose and demonstrate a Michelson interferometer modulator with integrated Bragg reflectors on a silicon-rich nitride–thin-film lithium niobate hybrid platform. High-reflectivity Bragg reflectors are placed at the ends of both arms, which double the electro-optic (E-O) interaction length and reduce the velocity mismatch between the microwave and optical wave. The presented Michelson interferometer modulator achieves a measured half-wave voltage length product as low as 1.06 V cm and high-speed modulation up to 70 Gbps. A 3-dB E-O bandwidth beyond 40 GHz is also achieved, which is, to the best of our knowledge, the highest modulation bandwidth of Michelson interferometer modulators.
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