NEO-PGA: nonvolatile electro-optically programmable gate array for optical interconnects

Arka Majumdar; Zhuoran Fang

doi:10.1117/12.2605331

5 March 2022 NEO-PGA: nonvolatile electro-optically programmable gate array for optical interconnects

Arka Majumdar, Zhuoran Fang

Proceedings Volume PC12007, Optical Interconnects XXII; PC120070B (2022) https://doi.org/10.1117/12.2605331
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

Large-scale, electronically reconfigurable photonic integrated circuits (PICs) can enable programmable gate array (PGA) to realize extremely fast, arbitrary linear operations, with potential applications in classical and quantum optical information technology. The basic building blocks of existing PGAs are thermally tunable broadband Mach-Zehnder-Interferometers, which pose several limitations in terms of size, power, and scalability. Phase change materials (PCMs), exhibiting large nonvolatile change in the refractive index, can potentially transform these devices, providing at least one order of magnitude reduction in the device size, zero static energy consumption, and minimal cross-talk. In this talk, I will discuss different PCMs that can be used in conjunction with silicon and silicon nitride photonics, to create reconfigurable optical switches for visible and infrared wavelengths. I will also talk about different heaters that are needed to actuate the phase transitions on-chip.

Conference Presentation

Citation Download Citation

Arka Majumdar and Zhuoran Fang "NEO-PGA: nonvolatile electro-optically programmable gate array for optical interconnects", Proc. SPIE PC12007, Optical Interconnects XXII, PC120070B (5 March 2022); https://doi.org/10.1117/12.2605331

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