Mr. Nicholas Wagner Profile

Nicholas Wagner

at BAE Systems Inc

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Proceedings Article | 12 June 2023 Presentation

Asynchronous SWIR Geiger-mode camera for direct and coherent LiDAR (Conference Presentation)

Piotr Kondratko, Elayne Heynen, Nicholas Wagner, Jason Gaines, John Glennon, Matt Little

Proceedings Volume PC12537, PC1253701 (2023) https://doi.org/10.1117/12.2668393

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Multi-pixel short-wave infra-red (SWIR) Geiger-mode avalanche photodiode (GmAPD) light detection and ranging (LIDAR) sensors have enabled unprecedented 3D imaging capabilities in commercial and government platforms. Traditionally, GmAPD sensors operate in range-gated synchronous mode and direct-detect (DD) single photons transmitted by the laser light that is back scattered from distant object. In this work, we explore performance metrics of asynchronous GmAPD sensors for single photon direct-detect as well as coherent-detect (CD) systems. The characteristics of free-running pixels, photon detection efficiency (PDE), dark-count rate (DCR), as well as bandwidth and jitter are discussed specific to DD and CD single-photon sensor operation.

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