Nonvolatile silicon photonic 1×2 switch by integrating the phase change chalcogenide into microring network

Ziyang Ye; Ruirui Song; Shaolin Zhou

doi:10.1117/12.2603934

13 December 2021 Nonvolatile silicon photonic 1×2 switch by integrating the phase change chalcogenide into microring network

Ziyang Ye, Ruirui Song, Shaolin Zhou

Author Affiliations +

Proceedings Volume 12072, 10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics; 120720K (2021) https://doi.org/10.1117/12.2603934
Event: Tenth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2021), 2021, Chengdu, China

Abstract

Photonic integrated circuits (PICs) as potential candidate to overcome the “von Neumann bottleneck” of current electronic technologies beyond Moore’s law gain increasing applications in fields of optical communication, data exchange and highperformance interconnect networks etc. Currently, elementary active devices such as photonic switches and modulators play essential roles in light-flow control of optical interconnection network, but suffer from high static power consumption because of volatile control and large footprint that is hard to integrate. In this trend, optical phase change materials (OPCMs) based active devices emerge as promising solutions due to advantages of large optical contrast between the amorphous and crystalline states, optically or electrically switchable and non-volatile control, easy to integration etc. In this paper, we propose a non-volatile O-PCMs photonic switch by integrating a thin film of germanium antimony telluride (GST) alloy on top of a micro-ring resonator. As confirmed by our analytical and computational results, upon an amorphous-to-crystalline phase change, two output ports of the O-PCM microring switch exhibit gigantic transmission contrast with a ratio up to highest 47:1. Further, the O-PCM based photonic switch also demonstrates extremely low extinction ration to 13.58 dB and 14.40 dB for both output ports from 1.5 μm to 1.6 μm.

Citation Download Citation

Ziyang Ye, Ruirui Song, and Shaolin Zhou "Nonvolatile silicon photonic 1×2 switch by integrating the phase change chalcogenide into microring network", Proc. SPIE 12072, 10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics, 120720K (13 December 2021); https://doi.org/10.1117/12.2603934

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KEYWORDS

Switches

Refractive index

Transmittance

Crystals

Waveguides

Silicon

Integrated optics

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