Improved passive quenching with active reset circuit

Chong Hu; Mingguo Liu; Joe C. Campbell

doi:10.1117/12.818313

29 April 2009 Improved passive quenching with active reset circuit

Chong Hu, Mingguo Liu, Joe C. Campbell

Proceedings Volume 7320, Advanced Photon Counting Techniques III; 73200W (2009) https://doi.org/10.1117/12.818313
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

We report an improved passive-quenching-with-active-reset (PQAR) circuit that can operate in a free-running mode with reduced afterpulsing. A dynamic range of approximately 80 dB has been achieved. A model that reveals the factors that determine the dynamic range is described. The PQAR circuit approach can also be utilized in gated mode, which we refer to as gated-PQAR circuit. Compared to conventional gated quenching, the gated-PQAR circuit can significantly reduce the current flow during avalanche. This will reduce afterpulsing and provide the capability of utilizing wider ac bias pulses, which will ease restrictions on synchronization with the arrival of incident photons.

Citation Download Citation

Chong Hu, Mingguo Liu, and Joe C. Campbell "Improved passive quenching with active reset circuit", Proc. SPIE 7320, Advanced Photon Counting Techniques III, 73200W (29 April 2009); https://doi.org/10.1117/12.818313

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