Two-pole microring weight banks

Alexander N. Tait; Allie X. Wu; Thomas Ferreira De Lima; Mitchell A. Nahmias; Bhavin J. Shastri; Paul R. Prucnal

doi:10.1364/OL.43.002276

Two-pole microring weight banks

Alexander N. Tait, Allie X. Wu, Thomas Ferreira De Lima, Mitchell A. Nahmias, Bhavin J. Shastri, Paul R. Prucnal

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

Weighted addition is an elemental multi-input to single-output operation that can be implemented with high-performance photonic devices. Microring (MRR) weight banks bring programmable weighted addition to silicon photonics. Prior work showed that their channel limits are affected by coherent inter-channel effects that occur uniquely in weight banks. We fabricate two-pole designs that exploit this inter-channel interference in a way that is robust to dynamic tuning and fabrication variation. Scaling analysis predicts a channel count improvement of 3.4-fold, which is substantially greater than predicted by incoherent analysis used in conventional MRR devices. Advances in weight bank design expand the potential of reconfigurable analog photonic networks and multivariate microwave photonics.

Original language	English (US)
Pages (from-to)	2276-2279
Number of pages	4
Journal	Optics Letters
Volume	43
Issue number	10
DOIs	https://doi.org/10.1364/OL.43.002276
State	Published - May 15 2018

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OL.43.002276

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title = "Two-pole microring weight banks",

abstract = "Weighted addition is an elemental multi-input to single-output operation that can be implemented with high-performance photonic devices. Microring (MRR) weight banks bring programmable weighted addition to silicon photonics. Prior work showed that their channel limits are affected by coherent inter-channel effects that occur uniquely in weight banks. We fabricate two-pole designs that exploit this inter-channel interference in a way that is robust to dynamic tuning and fabrication variation. Scaling analysis predicts a channel count improvement of 3.4-fold, which is substantially greater than predicted by incoherent analysis used in conventional MRR devices. Advances in weight bank design expand the potential of reconfigurable analog photonic networks and multivariate microwave photonics.",

author = "Tait, {Alexander N.} and Wu, {Allie X.} and {De Lima}, {Thomas Ferreira} and Nahmias, {Mitchell A.} and Shastri, {Bhavin J.} and Prucnal, {Paul R.}",

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AU - Tait, Alexander N.

AU - Wu, Allie X.

AU - De Lima, Thomas Ferreira

AU - Nahmias, Mitchell A.

AU - Shastri, Bhavin J.

AU - Prucnal, Paul R.

PY - 2018/5/15

Y1 - 2018/5/15

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AB - Weighted addition is an elemental multi-input to single-output operation that can be implemented with high-performance photonic devices. Microring (MRR) weight banks bring programmable weighted addition to silicon photonics. Prior work showed that their channel limits are affected by coherent inter-channel effects that occur uniquely in weight banks. We fabricate two-pole designs that exploit this inter-channel interference in a way that is robust to dynamic tuning and fabrication variation. Scaling analysis predicts a channel count improvement of 3.4-fold, which is substantially greater than predicted by incoherent analysis used in conventional MRR devices. Advances in weight bank design expand the potential of reconfigurable analog photonic networks and multivariate microwave photonics.

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Two-pole microring weight banks

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