Systems-on-chip in monolithically integrated silica-on-silicon platform

S. Bidnyk; K. Yadav; A. Balakrishnan

doi:10.1117/12.3002708

12 March 2024 Systems-on-chip in monolithically integrated silica-on-silicon platform

S. Bidnyk, K. Yadav, A. Balakrishnan

Proceedings Volume 12889, Integrated Optics: Devices, Materials, and Technologies XXVIII; 1288908 (2024) https://doi.org/10.1117/12.3002708
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We introduce cutting-edge monolithically integrated photonic designs realized in a high-performance silica-on-silicon planar lightwave circuit (PLC) platform. Systems-on-chip require integration from a dozen to a few hundred optical functions, necessitating component and wafer level optimizations. Our closed-loop feedback framework enables us to achieve low propagation losses (<0.009 dB/cm), efficient fiber coupling (0.5 dB/facet), temperature stability (< 10 pm/°C), wavelength-independent operation, as well as tight polarization and phase control. Due to the lack of two-photon absorption, low scattering, and negligible absorption, our silica-on-silicon platform is well-suited for high-pump power applications in LiDAR and accelerated computing. We discuss how these characteristics allow us to monolithically integrate high-performance optical building blocks such as K-clocks, cascaded lattice filters, polarization-beam splitters, and optical hybrid components into systems-on-chip for advanced photonics applications. We demonstrate the versatility and robustness of the platform by discussing examples of monolithically integrated chips used in AI/computing accelerators, and advanced vision applications based on LiDAR. Based on exceptional optical characteristics achieved through our platform, our systems-on-chip have emerged as high-performance and scalable solutions, capable of meeting the rigorous demands imposed by a wide range of applications.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

S. Bidnyk, K. Yadav, and A. Balakrishnan "Systems-on-chip in monolithically integrated silica-on-silicon platform", Proc. SPIE 12889, Integrated Optics: Devices, Materials, and Technologies XXVIII, 1288908 (12 March 2024); https://doi.org/10.1117/12.3002708

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