A digital delay generator (DDG) produces precise, programmable time delays between trigger inputs and output pulses — often with picosecond-level resolution. While a standard pulse generator creates pulses with defined width and repetition rate, a DDG adds precise, independent delay control on each output channel. This is essential for synchronizing multiple instruments in laser experiments, LIDAR systems, particle accelerators, and pump-probe spectroscopy setups where timing relationships between events must be exact.