The APS-100 delivers an almost constant output signal over an intensity range of about 1:100. Gain regulation in the APS-100 is achieved by keeping the average photodiode current constant. A constant pulse frequency in the range of 70 MHz to 90 MHz is required for the module to work efficiently. The APS-100 contains a beamsplitter that directs a few percent of the laser power into the photodiode, and lets the rest pass to the experiment.
The set is delivered with 2 m SMAM-SMAM coaxial cable, pulse inverter A-PPI-D and 12 V power supply.