Piezo-Optomechanical Signal Transduction Using Lamb-Wave Supermodes in a Suspended GalliumArsenide Photonic-Integrated-Circuit Platform
Piezo-Optomechanical Signal Transduction Using Lamb-Wave Supermodes in a Suspended GalliumArsenide Photonic-Integrated-Circuit Platform
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DOI：
10.1103/physrevapplied.18.054030
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发表时间：
2022-03
影响因子：
4.6
通讯作者：
Ankur Khurana;Pisu Jiang;K. Balram
中科院分区：
文献类型：
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作者：
Ankur Khurana;Pisu Jiang;K. Balram
压电光学机械平台是将信号从微波有效地转换到光频域的最有前途的途径之一。为了满足构建高效量子换能器的严格要求，需要开发新的器件体系结构。在这项工作中，我们利用机械超模的原则，以提高整体的微波到光的转换效率，通过制造兰姆波谐振器，与机械呼吸模式的肋形波导中的悬浮砷化镓（GaAs）光子集成电路（PIC）平台杂交。将GaAs中的强弹光相互作用与这种架构所能实现的增加的声子注入效率相结合，我们证明了高达7 GHz的信号转导，并且使用这种方法，对于杂化模式（f m = 2 GHz），转导效率增加了1.25倍。我们还概述了提高器件性能的路线，使量子转导在这个平台。
Piezoelectric optomechanical platforms present one of the most promising routes towards efficient transduction of signals from the microwave to the optical frequency domains. New device archi-tectures need to be developed in order to achieve the stringent requirements for building efficient quantum transducers. In this work, we utilize the mechanical supermode principle to improve the overall microwave to optical transduction efficiency, by fabricating Lamb wave resonators that are hybridized with the mechanical breathing modes of a rib waveguide in a suspended gallium arsenide (GaAs) photonic integrated circuits (PIC) platform. Combining the strong elasto-optic interactions available in GaAs with the increased phonon injection efficiency enabled by this architecture, we demonstrate signal transduction up to 7 GHz, and an increase in transduction efficiency by ≈ 25 × for the hybridized mode ( f m ≈ 2 GHz), using this approach. We also outline routes for improving device performance to enable quantum transduction within this platform.