The PulseLink i s a new controller for the PulseCheck as an upgrade option replacing the standard control unit of the PulseCheck. It controls the optical head while being connected via USB to the control software running on the customer's computer. The PulseLink offers high resolution digitizing and high speed readout of the autocorrelation function for further use. The scanning of the optical head can be synchronized to an external trigger which makes it ideal for the measurement of e.g. low repetition rate amplifier systems.