铌酸锂集成光子器件中的千兆赫热弹性声光调制

IF 6.6 2区 物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Zheng Zheng, Hanke Feng, Ahmet Tarık Işık, Peter J.M. van der Slot, Cheng Wang, David Marpaung
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引用次数: 0

摘要

在集成光子电路中剪裁声波和光波之间的相互作用已经成为量子光学和高速信息处理的一个有前途的途径。在各种方法中,片上声光调制(AOM)在过去的十年中得到了广泛的探索,并成功地在许多集成光电子平台上进行了演示。在本文中,我们设计并制作了周期从0.4 μm到3 μm的金属光栅,并将其沉积在半蚀刻薄膜铌酸锂(TFLN)器件上,该器件由1 μm厚的二氧化硅包层。用强度调制的泵浦光束照射金属光栅,可以产生频率高达6.58 GHz的热弹性驱动saw,在中心频率为1.41 GHz时线宽为1.8 MHz。这种热弹性方法消除了对压电材料响应的依赖,为集成光子学应用提供了更广泛的兼容性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Gigahertz thermoelastic acousto-optic modulation in lithium niobate integrated photonic device
Tailoring the interaction between acoustic waves and optical waves in integrated photonic circuits has emerged as a promising avenue for quantum optics and high-speed information processing. Among various approaches, on-chip acousto-optic modulation (AOM) has been extensively explored in the past decade and successfully demonstrated across many integrated photonics platforms. In this paper, we design and fabricate metallic gratings with periods varying from 0.4 μm to 3 μm deposited on a half-etched thin film lithium niobate (TFLN) device cladded by 1-μm thick silica. By illuminating the metallic grating with an intensity-modulated pump beam, we can generate thermoelastically driven SAWs with frequencies up to 6.58 GHz, and a linewidth of 1.8 MHz at a center frequency of 1.41 GHz. This thermoelastic approach eliminates reliance on a piezoelectric material response, offering broader compatibility for integrated photonics applications.
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来源期刊
Nanophotonics
Nanophotonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
13.50
自引率
6.70%
发文量
358
审稿时长
7 weeks
期刊介绍: Nanophotonics, published in collaboration with Sciencewise, is a prestigious journal that showcases recent international research results, notable advancements in the field, and innovative applications. It is regarded as one of the leading publications in the realm of nanophotonics and encompasses a range of article types including research articles, selectively invited reviews, letters, and perspectives. The journal specifically delves into the study of photon interaction with nano-structures, such as carbon nano-tubes, nano metal particles, nano crystals, semiconductor nano dots, photonic crystals, tissue, and DNA. It offers comprehensive coverage of the most up-to-date discoveries, making it an essential resource for physicists, engineers, and material scientists.
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