Temporal OPO dynamics

We present a temporal cavity based on a time-lens in a temporal 2f configuration. This setup enables light to oscillate in the time domain, forming a temporal analogue of an optical parametric oscillator (OPO). Our system offers high temporal resolution and sensitivity to ultrafast temporal and spectral changes. In our temporal OPO, we observe the formation of solitons under negative dispersion, which is opposed to typical Kerr solitons, and study the temporal dynamics of such solitons. In addition, by exploiting our cavity sensitivity to ultrafast spectral and temporal changes, we can detect novel temporal oscillations of soliton pairs caused by nonlinear polarization mode dispersion.