The GFT101 module is designed to convert fast electrical pulse to a fast optical pulse of 0.3 mW. This compact module, directly connectable to device BNC output, combines with GFT200 is ideal to transmit pulse to remote location. The Primary applications are when the critical pulse has a high common mode voltage with respect to the measurement equipment. These applications are in Laser research, EMC simulators, High voltage breakdowns and High-Energy physics.