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Related Experiment Video

Updated: Mar 21, 2026

A Multilayer Microfluidic Platform for the Conduction of Prolonged Cell-Free Gene Expression

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Published on: October 6, 2019

Multi-channel control for microring weight banks.

Alexander N Tait, Thomas Ferreira de Lima, Mitchell A Nahmias

|May 4, 2016

Summary

This summary is machine-generated.

We developed a scalable calibration method for silicon microring filter banks, enabling accurate weighted addition across multiple channels. This advances ultrafast analog signal processing using photonic integrated circuits.

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Area of Science:

Photonics
Integrated Optics
Analog Signal Processing

Background:

Accurate analog weight control in multi-channel systems is challenging.
Existing calibration methods are often impractical or require extensive measurements.

Purpose of the Study:

To introduce a scalable calibration technique for silicon microring filter banks.
To achieve accurate weighted addition in a 4-channel system.

Main Methods:

Developed model-based calibration for thermal crosstalk and cross-gain saturation.
Implemented a feedforward approach with O(N) complexity.
Demonstrated 3.8-bit weight accuracy per channel.

Main Results:

Achieved 4-channel, 2GHz weighted addition.
Reduced calibration complexity from O(2N) to O(N).
Demonstrated high feedforward weight accuracy.

Conclusions:

Model-based calibration enables scalable control of large microring systems.
Silicon microring weighted addition offers new paradigms for ultrafast analog processing.
This technology leverages photonic manufacturing for advanced information processing.