Fig. 5: Displacement readout system for the optomechanical resonator. | Communications Physics

Fig. 5: Displacement readout system for the optomechanical resonator.

From: Optomechanical resonator-enhanced atom interferometry

Fig. 5

Laser light split off for intensity noise correction and light reflected back from the optomechanical resonator (OMR) are detected on photo diodes (PD 1 & 2). Both signals are passed to current-to-voltage converters (I/V) followed by high-pass filters (HPF) at 0.8 Hz and are subsequently enhanced by amplifiers (Amp). Finally, the difference signal is digitally low-pass filtered (LPF) at 50 Hz.

Back to article page