GST-on-silicon hybrid nanophotonic integrated circuits: a non-volatile quasi-continuously reprogrammable platform

• DOI: 10.1364/ome.8.001551
• Publication Date: 2018-05-17T18:49:39Z
• Authors: Jiajiu Zheng; Amey Khanolkar; Peipeng Xu; Shane Colburn; Sanchit Deshmukh; Jason Myers; Jesse Frantz; Eric Pop; Joshua Hendrickson; Jonathan Doylend; Nicholas Boechler; Arka Majumdar
• Keywords: Extinction ratio; Nanophotonics; Modulation (music); Hybrid silicon laser

Reconfiguration of silicon photonic integrated circuits relying on the weak, volatile thermo-optic or electro-optic effect usually suffers from a large footprint and energy consumption. Here, integrating phase-change material, Ge2Sb2Te5 (GST) with microring resonators, we demonstrate an energy-efficient, compact, non-volatile, reprogrammable platform. By adjusting number free-space laser pulses applied to GST, characterize strong broadband attenuation optical phase modulation effects platform, perform quasi-continuous tuning enabled by thermo-optically-induced changes. As result, non-volatile switch high extinction ratio, as 33 dB, is demonstrated.