Nonvolatile electrically reconfigurable integrated photonic switch

Abstract

Reconfigurability of photonic integrated circuits (PICs) has become increasingly important due to the growing demands for electronic-photonic systems on a chip driven by emerging applications, including neuromorphic computing, quantum information, and microwave photonics. Success in these fields usually requires highly scalable photonic switching units as essential building blocks. Current photonic switches, however, mainly rely on materials with weak, volatile thermo-optic or electro-optic modulation effects, resulting in a large footprint and high energy consumption. As a promising alternative, chalcogenide phase-change materials (PCMs) exhibit strong modulation in a static, self-holding fashion. Here, we demonstrate nonvolatile electrically reconfigurable photonic switches using PCM-clad silicon waveguides and microring resonators that are intrinsically compact and energy-efficient. With phase transitions actuated by in-situ silicon PIN heaters, near-zero additional loss and reversible switching with high endurance are obtained in a complementary metal-oxide-semiconductor (CMOS)-compatible process. Our work can potentially enable very large-scale general-purpose programmable integrated photonic processors.

References in corpus (6)

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• Quantum transport simulations in a programmable nanophotonic processor
• Low-loss and broadband non-volatile phase-change directional coupler switches
• Modeling Electrical Switching of Nonvolatile Phase-Change Integrated Nanophotonic Structures with Graphene Heaters

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• Broadband nonvolatile electrically programmable silicon photonic switches
• Phase-change metasurfaces for dynamic image display and information encryption
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• Ultra-high endurance silicon photonic memory using vanadium dioxide
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• Ultra-compact nonvolatile plasmonic phase change modulators and switches with dual electrical-optical functionality
• 1D self-healing beams in integrated silicon photonics
• Design of an ultra-compact, energy-efficient non-volatile photonic switch based on phase change materials
• Integrated magneto-photonic non-volatile multi-bit memory
• A comparison of phase change materials in reconfigurable silicon photonic directional couplers
• Comparison of phase change process in Si-GST hybrid integrated waveguide and MMI devices