Hes-so Valais

Control circuit for LTP-LM


Contraves Space, a company active in the space industry, has developed a laser communication system for satellites. The HES-SO Valais has participated in this project by developing a control unit for the laser modulation device. This system was created for the LISA project, which is jointly managed by ESA and NASA.

The circuit receives commands from a processor and controls D/A converters in order to regulate the modulator. It also controls A/D converters to return information on the state of the modulator to the processor. The communication is established through an RS232 serial link.

The circuit is resistant to radiation in space, and a test battery was developed to ensure its robustness.