In collaboration with a team from INRS in Montreal, we demonstrated a new technique of photonic generation of arbitrary signals, which allows, from a continuous laser, and a low frequency electronics (10 MHz), to generate arbitrary signals with durations up to 100 ns, and bandwidths greater than 25 GHz (limited by the speed of our detection system). This technique relies on the use of a frequency shifting optical loop injected by a continuous laser. It suffices to modulate the injection laser with a signal that reproduces the Fourier transform of the desired output signal. A time-frequency projection effect makes it possible to reproduce the input temporal signal in the spectrum of the output signal. These results have just been published in Nature Communications.