Performance evaluation of a single pixel event-based sensor pixel unit cell optimized for mid-wave infrared sensing

Z. M. Alsaad; J. V. Logan; C. P. Morath; P. N. McMahon-Crabtree; L. N. Kulesza; D. Maestas; P. Zarkesh-Ha; P. T. Webster

doi:10.1117/12.3031209

1 November 2024 Performance evaluation of a single pixel event-based sensor pixel unit cell optimized for mid-wave infrared sensing

Z. M. Alsaad, J. V. Logan, C. P. Morath, P. N. McMahon-Crabtree, L. N. Kulesza, D. Maestas, P. Zarkesh-Ha, P. T. Webster

Author Affiliations +

Proceedings Volume 13200, Electro-Optical and Infrared Systems: Technology and Applications XXI; 132001K (2024) https://doi.org/10.1117/12.3031209
Event: Security + Defence, 2024, Edinburgh, United Kingdom

Abstract

As we enter this new space age where the barrier to access space has never been lower, the technologies that enable various space-based missions are being reevaluated in light of evolving requirements and constraints. For example, event-based sensors show great promise for executing tracking functions with higher timing resolution and reduced power consumption and datalink demands, a great benefit for larger sensor network architectures that may be enabled by recent reductions in launch costs. Currently, the vast majority of event-based sensors on the market are designed to operate for visible wavelength applications using silicon-based photodetectors, however, operation in the infrared is essential for many space-based sensing applications. Evaluation of how the event-based read-out integrated circuit will interact with smaller bandgap photodetectors and how typical infrared photogenerated signal levels will propagate through the event-based sensor pixel unit cell will be necessary to extend the utility of event-based sensing into the mid- to long-wavelength infrared. To evaluate the functionality of the event-based sensor pixel unit cell, the circuit is implemented on a custom-designed printed circuit board using discrete devices selected to tailor the functionality to operate a mid-wave infrared photodetector. The measurements conducted provide understanding of merits such as photoresponse, latency, and general operation of the unit cell alongside possible limitations of the unit cell.

Conference Presentation

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Z. M. Alsaad, J. V. Logan, C. P. Morath, P. N. McMahon-Crabtree, L. N. Kulesza, D. Maestas, P. Zarkesh-Ha, and P. T. Webster "Performance evaluation of a single pixel event-based sensor pixel unit cell optimized for mid-wave infrared sensing", Proc. SPIE 13200, Electro-Optical and Infrared Systems: Technology and Applications XXI, 132001K (1 November 2024); https://doi.org/10.1117/12.3031209

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