Kizilkan, EkinKaraca, UtkuPesic, VladimirLee, Myung-JaeBruschini, ClaudioSpringThorpe, Anthony J.Walker, Alexandre W.Flueraru, CostelPitts, Oliver J.Charbon, Edoardo2022-05-092022-05-092022-05-092022-09-0110.1109/JSTQE.2022.3162527https://infoscience.epfl.ch/handle/20.500.14299/187693WOS:000784186300002This work presents a novel InGaAs/InP SPAD structure fabricated using a selective area growth (SAG) method. The surface topography of the selectively grown film deposited within the 70 mu m diffusion apertures is used to engineer the Zn diffusion profile to suppress premature edge breakdown. The device achieves a highly uniform active area without the need for shallow diffused guard ring (GR) regions that are inherent in standard InGaAs/InP SPADs. We have obtained 33% and 43% photon detection probability (PDP) at 1550 nm, with 5 V and 7 V excess bias, respectively. These measurements were performed at 300 K and 225 K. The dark count rate (DCR) per unit area at room temperature and at 5 V excess bias is 430 cps/mu m(2) and it decreases to 5 cps/mu m(2) at 225 K. Timing jitter is measured with passive quenching at 1550nm as 149 ps at full-width-at-half-maximum (FWHM), (300 K, 5 V excess bias). The proposed technology is suitable for a number of applications, including optical time-domain reflectometry (OTDR), quantum information, and light detection and ranging (LiDAR).Engineering, Electrical & ElectronicQuantum Science & TechnologyOpticsPhysics, AppliedEngineeringPhysicsingaas/inplidarphoton countingsinglephoton avalanche diodes (spads)3-d rangingtime-correlated single-photon counting (tcspc)iii-vinpperformancedetectorsgrowthchargemocvdtext::journal::journal article::research article