Figure 3: Experimental setup.
The image reports the physical dimensions of the ring, the working principle as an optical integrator and a detailed scheme of the experimental setup used during the measurements. First, the optical pulse train is emitted (on a frequency carrier that is in resonance with the ring) by a picosecond fibre laser and is then reshaped into one of the waveforms under investigation by the interferometer. Subsequently, the desired signal passes through a controller that fixes its polarization before being launched inside the cavity. Finally, the optical ring output is recorded (in the time domain) by means of a high-speed photo-detector connected to a sampling oscilloscope.
