GST-on-silicon hybrid nanophotonic integrated circuits: a non-volatile quasi-continuously reprogrammable platform
GST-on-silicon hybrid nanophotonic integrated circuits: a non-volatile quasi-continuously reprogrammable platform
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DOI：
10.1364/ome.8.001551
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发表时间：
2018-06-01
影响因子：
2.8
通讯作者：
Majumdar, Arka
中科院分区：
文献类型：
--
作者：
Zheng, Jiajiu;Khanolkar, Amey;Majumdar, Arka
硅光子集成电路的重构依赖于硅的弱的、易挥发的热光或电光效应，通常遭受大的占地面积和能量消耗。在这里，集成相变材料，锗锑碲（GST）与硅微谐振器，我们展示了一个节能，紧凑，非易失性，可重新编程的平台。通过调整施加到GST的自由空间激光脉冲的能量和数量，我们表征了平台的强宽带衰减和光学相位调制效应，并通过热光诱导相变实现准连续调谐。其结果是，一个非易失性的光开关具有高消光比，高达33分贝，被证明。(C)根据OSA开放获取出版协议的条款，2018年美国光学学会
Reconfiguration of silicon photonic integrated circuits relying on the weak, volatile thermo-optic or electro-optic effect of silicon usually suffers from a large footprint and energy consumption. Here, integrating a phase-change material, Ge2Sb2Te5 (GST) with silicon microring resonators, we demonstrate an energy-efficient, compact, non-volatile, reprogrammable platform. By adjusting the energy and number of free-space laser pulses applied to the GST, we characterize the strong broadband attenuation and optical phase modulation effects of the platform, and perform quasi-continuous tuning enabled by thermo-optically-induced phase changes. As a result, a non-volatile optical switch with a high extinction ratio, as large as 33 dB, is demonstrated. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement