Field-Programmable Gate Arrays (FPGAs) are integrated circuits that can be programmed by users after manufacturing to perform specific logical functions. Their flexibility allows researchers and engineers to configure them for various applications, such as digital signal processing and data communication, making them essential tools in experimental setups, including heralded single-photon sources. FPGAs enable rapid prototyping and adjustments in experimental conditions, providing a crucial resource for controlling optical processes and enhancing the capabilities of single-photon sources.
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