铌酸锂薄膜差动驱动推挽调制器的首次演示

IF 9.8 1区 物理与天体物理 Q1 OPTICS
Gengxin Chen, Ziliang Ruan, Haiqiang Wei, Haohua Wang, Yanting Zhou, Kaixuan Chen, Kangping Zhong, Changjian Guo, Liu Liu
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引用次数: 0

摘要

基于薄膜铌酸锂(TFLN)的电光(EO)马赫-曾德调制器(MZMs)已经显示出其在下一代高速光传输模块和系统中的潜力。与其他平台上的调制器不同,大多数基于TFLN的EO mzm采用单驱动推挽配置。差分驱动和推挽兼容的MZM不仅可以提高调制带宽,而且可以方便地与电子驱动器接口,因此设计一种更有吸引力。在这里,我们展示了,据我们所知,第一个差分驱动推挽式EO调制器在TFLN上使用两段MZM结构。通过补偿光信号和微波信号之间的延迟失配,该差动驱动调制器具有670 mV的超低Vπ和≈109 GHz的大外推EO带宽。到目前为止,TFLN调制器的最佳电压带宽比性能为≈243 GHz/V2。强度调制器和相干调制器都采用了该结构,并演示了高速数据传输。这种差动驱动MZM结构可以促进基于TFLN的调制器与电子芯片的共封装。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

First Demonstration of Differential-Drive Push-Pull Modulators on Thin-Film Lithium Niobate

First Demonstration of Differential-Drive Push-Pull Modulators on Thin-Film Lithium Niobate
Thin-film lithium niobate (TFLN) based electro-optic (EO) Mach–Zehnder modulators (MZMs) have shown their potential for next generation high-speed optical transmission modules and systems. Unlike modulators on other platforms, most of TFLN based EO MZMs adopt single-drive push-pull configuration. It is more attractive to design a differential-drive and push-pull compatible MZM, which would not only improve the modulation bandwidth, but also facilitate interfacing with electronic drivers. Here, we demonstrate, to the best of our knowledge, the first differential-drive push-pull EO modulator on TFLN using a two-segment MZM structure. By compensating the delay mismatch between optical and microwave signals, the fabricated differential-drive modulator features an ultra-low Vπ of 670 mV and a large extrapolated EO bandwidth of ≈109 GHz. This corresponds to, so far, the best voltage-bandwidth-ratio performance of ≈243 GHz/V2 for TFLN modulators. Both intensity and coherent modulators are built using the proposed structure, and high-speed data transmissions are also demonstrated. This differential-drive MZM structure could promote co-packaging of TFLN based modulators with electronic chips.
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来源期刊
CiteScore
14.20
自引率
5.50%
发文量
314
审稿时长
2 months
期刊介绍: Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications. As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics. The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.
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