Fig. 5: Impact of the cavity length.
From: Brillouin-induced Kerr frequency comb in normal dispersion fiber Fabry Perot resonators
a 2D plot illustrating the evolution of the parametric gain as a function of the FSR of the cavity and the corresponding repetition rate of the frequency comb. Typical examples of output spectra corresponding to a FSR of 1.176 GHz (b), 1.22 GHz (c) and 1.3 GHz (d) leading to frequency combs of 9.66 GHz, 10.4 GHz and 10.6 GHz repetition rates respectively (see e representing the first band from numerics corresponding to these cases).
