Acousto-optic modulation of a wavelength-scale waveguide
Acousto-optic modulation of a wavelength-scale waveguide
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DOI：
10.1364/optica.413401
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发表时间：
2021-04-20
期刊：
影响因子：
10.4
通讯作者：
Safavi-Naeini, Amir H.
中科院分区：
文献类型：
--
作者：
Sarabalis, Christopher J.;Van Laer, Raphael;Safavi-Naeini, Amir H.
自激光器问世以来，声光调制器一直是控制光的重要工具。片上钛酸锂波导技术的最新进展为这些器件提供了新的机会。我们展示了一个共线声光调制器在悬浮膜的锂的钛酸盐采用高限制，波长尺度波导。通过强烈地限制光波和机械波，该调制器提高了品质因数，该品质因数以数量级的数量级说明声光和机电效率。我们的器件演示标志着声光技术的重大进步，有望成为一类新型的紧凑型低功率移频器、可调谐滤波器、非磁隔离器和光束偏转器。(C)2021年美国光学学会根据OSA开放获取出版协议的条款
Since the advent of the laser, acousto-optic modulators have been an important tool for controlling light. Recent advances in on-chip lithium niobate waveguide technology present new opportunities for these devices. We demonstrate a collinear acousto-optic modulator in a suspended film of lithium niobate employing a high-confinement, wavelength-scale waveguide. By strongly confining the optical and mechanical waves, this modulator improves a figure-of-merit that accounts for both acousto-optic and electro-mechanical efficiency by orders of magnitude. Our device demonstration marks a significant technological advance in acousto-optics that promises a novel class of compact and low-power frequency shifters, tunable filters, non-magnetic isolators, and beam deflectors. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing AgreementY