Ultra-high-Q Whispering-Gallery Mode Resonators in the Pulsed-Pump Regime

We have developed an experimental setup in order to study whispering gallery mode resonators in the pulsed-pump regime. Since the pulse repetition rate needs to match the free spectral range of the resonator, the pulse generator we have built is flexible in terms of both pulse repetition rate and pulsewidth. A rich variety of dynamical phenomena are observed in the system.