Free spectral range electrical tuning of a high quality on-chip microcavity.
Free spectral range electrical tuning of a high quality on-chip microcavity.
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DOI：
10.1364/oe.26.033649
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发表时间：
2018-06
期刊：
影响因子：
3.8
通讯作者：
Christiaan J. Bekker;C. Baker;R. Kalra;Han-Hao Cheng;Bei-Bei Li-Bei;Varun Prakash;W. Bowen
中科院分区：
文献类型：
--
作者：
Christiaan J. Bekker;C. Baker;R. Kalra;Han-Hao Cheng;Bei-Bei Li-Bei;Varun Prakash;W. Bowen
可重构光子电路的应用范围从下一代计算机体系结构到量子网络、相干雷达和光学超材料。在这里，我们展示了一个片上高质量的微腔，其共振可以在整个自由光谱范围（FSR）内进行电调谐。FSR调谐允许共振与任何源或发射极，或任何数量的网络微腔之间。我们通过将纳米电子驱动与强光力学相互作用相结合来实现它，从而产生高度依赖几何的有效折射率。这允许低电压和亚纳米瓦的功耗。我们展示了一个基本的可重构光子网络，使微腔在电信光纤链路上与微环形光腔的任意模式共振。我们的研究结果在光子电路之外的应用，包括广泛可调谐的集成激光器，用于电信和天文学的可重构光学滤波器，以及片上传感器网络。
Reconfigurable photonic circuits have applications ranging from next-generation computer architectures to quantum networks, coherent radar and optical metamaterials. Here, we demonstrate an on-chip high quality microcavity with resonances that can be electrically tuned across a full free spectral range (FSR). FSR tuning allows resonance with any source or emitter, or between any number of networked microcavities. We achieve it by integrating nanoelectronic actuation with strong optomechanical interactions that create a highly geometry-dependent effective refractive index. This allows low voltages and sub-nanowatt power consumption. We demonstrate a basic reconfigurable photonic network, bringing the microcavity into resonance with an arbitrary mode of a microtoroidal optical cavity across a telecommunications fibre link. Our results have applications beyond photonic circuits, including widely tuneable integrated lasers, reconfigurable optical filters for telecommunications and astronomy, and on-chip sensor networks.