# Gate Voltage Effect on Pulse Detection Efficiency of Perimeter-Gated SPADs

arXiv: https://arxiv.org/abs/2608.21371 · HTML: https://mlsanity.com/paper/2608.21371/

## Key facts

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- First posted on arXiv 24 Jun 2026.

## Abstract (arXiv)

Perimeter-gated single-photon avalanche diodes (pg-SPADs) are known for their dynamic dark noise modulation capabilities. They are reported to trade noise for photon sensitivity under continuous illumination. However, the implications of this trade-off have not heretofore been studied with pulsed optical systems. This work bridges this gap. We demonstrate that pg-SPADs fabricated in a 0.35 μm standard CMOS process trade-off pulse detection efficiency for a reduction in the the spread of spurious events within a burst window. Consequently, herein, we propose guidelines for the optimal use of pg-SPADs in pulsed LIDAR applications in view of the observed trade-off.