Silikon ve InGaAs tabanlı tek foton dedektörlerinin karakterizasyonu ve ticarileştirilmesi

This thesis delves into the intricacies of quenching circuitry, specifically tailored for free-running single photon detectors working within the visible and near-infrared spectra. It embarks on a comprehensive exploration, commencing with an in-depth analysis of designing quenching circuitry customized for Silicon and InGaAs avalanche photodiodes (APDs). This investigation thoroughly examines the merits and drawbacks of various quenching circuit topologies, elucidating their diverse applications. The challenges inherent in Silicon and InGaAs APDs are examined, highlighting optimization strategies for quenching and resetting circuitry while navigating electronic intricacies. Moreover, an emphasis is placed on developing a CubeSat compatible, miniaturized design, detailing its schematic blueprint. The thesis explicitly covers the processes of designing, testing, debugging, and characterizing these detectors from both electronic and optical standpoints, providing detailed insights into the experimental outcomes. Parameters such as dead time, timing jitter, afterpulsing, and photon detection efficiency are scrutinized, elucidating their electronic ramifications on the designs. Comprehensive explanations are provided regarding the testing and characterization methodologies employed. Furthermore, the thesis showcases three distinct single photon detector schematics and their corresponding PCB designs. It outlines the development of two disparate high voltage amplifier designs, crafted to meet the requisite parameters for these detectors, all of which have evolved into viable commercial products. v This comprehensive exploration combines theoretical insights with practical implementations, culminating in a refined understanding of quenching circuitry intricacies tailored explicitly for free-running single-photon detectors. The resulting designs and methodologies represent a gathering of interdisciplinary knowledge, offering profound implications for the advancement of single photon detection technologies.