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Updated: Jul 3, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

Multichannel digital phase sensitive detection using a field programmable gate array development platform.

Steven J Lascos¹, Daniel T Cassidy

¹Department of Engineering Physics, McMaster University, Hamilton, Ontario, Canada.

The Review of Scientific Instruments

|August 7, 2008

Summary

This study introduces digital phase sensitive detectors (PSDs) using Field Programmable Gate Arrays (FPGAs), enabling advanced signal processing. These FPGAs offer enhanced capabilities for precise measurements and multi-signal analysis.

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Area of Science:

Electrical Engineering
Digital Signal Processing
Instrumentation

Background:

Conventional phase sensitive detectors (PSDs) performance is limited by analog front-end components.
Field Programmable Gate Arrays (FPGAs) offer a flexible platform for digital signal processing.
There is a need for advanced PSDs with enhanced capabilities for complex signal analysis.

Purpose of the Study:

To develop and evaluate digital phase sensitive detectors (PSDs) utilizing Field Programmable Gate Arrays (FPGAs).
To demonstrate the enhanced capabilities of FPGA-based PSDs for simultaneous multi-signal demodulation and precise phase resolution.
To present novel circuits for dynamic frequency tracking and ultrafine phase resolution.

Main Methods:

Development of digital PSDs implemented on an FPGA logic device.

Related Experiment Videos

Last Updated: Jul 3, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

Integration of an FPGA development system with a custom analog data acquisition board.

Design of circuits for dynamic frequency tracking and achieving sub-0.001 degree phase resolution.

Main Results:

FPGA-based PSDs provide a scalable platform for advanced digital signal processing.
Demonstrated simultaneous demodulation of multiple independent analog signals at multiple frequencies.
Achieved ultrafine phase resolution (<0.001 degrees) and dynamic frequency tracking.

Conclusions:

FPGA-based digital PSDs represent a significant advancement over conventional designs.
The developed system offers enhanced capabilities for complex signal processing applications.
The presented technology enables highly precise measurements with improved performance metrics.