Statistical analysis of dark count rate in Geiger-mode APD FPAs

Mark A. Itzler; Uppili Krishnamachari; Quan Chau; Xudong Jiang; Mark Entwistle; Mark Owens; Krystyna Slomkowski

doi:10.1117/12.2068744

13 October 2014 Statistical analysis of dark count rate in Geiger-mode APD FPAs

Mark A. Itzler, Uppili Krishnamachari, Quan Chau, Xudong Jiang, Mark Entwistle, Mark Owens, Krystyna Slomkowski

Proceedings Volume 9250, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VIII; and Military Applications in Hyperspectral Imaging and High Spatial Resolution Sensing II; 925003 (2014) https://doi.org/10.1117/12.2068744
Event: SPIE Security + Defence, 2014, Amsterdam, Netherlands

Abstract

We present a temporal statistical analysis of the array-level dark count behavior of Geiger-mode avalanche photodiode (GmAPD) focal plane arrays that distinguishes between Poissonian intrinsic dark count rate and non-Poissonian crosstalk counts by considering “inter-arrival” times between successive counts from the entire array. For 32 x 32 format sensors with 100 μm pixel pitch, we show the reduction of crosstalk for smaller active area sizes within the pixel. We also compare the inter-arrival time behavior for arrays with narrow band (900 - 1100 nm) and broad band (900 - 1600 nm) spectral response. We then consider a similar analysis of larger format 128 x 32 arrays. As a complement to the temporal analysis, we describe the results of a spatial analysis of crosstalk events. Finally, we propose a simple model for the impact of crosstalk events on the Poissonian statistics of intrinsic dark counts that provides a qualitative explanation for the results of the inter-arrival time analysis for arrays with varying degrees of crosstalk.

Citation Download Citation

Mark A. Itzler, Uppili Krishnamachari, Quan Chau, Xudong Jiang, Mark Entwistle, Mark Owens, and Krystyna Slomkowski "Statistical analysis of dark count rate in Geiger-mode APD FPAs", Proc. SPIE 9250, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VIII; and Military Applications in Hyperspectral Imaging and High Spatial Resolution Sensing II, 925003 (13 October 2014); https://doi.org/10.1117/12.2068744

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