Fig. 1: Experimental conditions.
From: Brillouin-induced Kerr frequency comb in normal dispersion fiber Fabry Perot resonators

a Experimental setup. b Measured cavity transfer function (FSR = 1.176 GHz and δν = 2.8 MHz, thus F = 420). c Measured SBS gain curve (SBS shift is 9.655 GHz). d Cavity resonances and Brillouin gain curve. Parameters: Resonator length, L = 8.78 cm, β2 = 0.382 ps∘/km, β3 = 0.00273 ps3/km and nonlinear coefficient (γ) = 10.8/W/km. EDFA Erbium doped Fiber Amplifier, BPF bandpass filter, PC polarization controler, OI optical isolator, FBG fiber Bragg grating, PD photodetector, OSA Optical spectrum analyzer, OSO Optical sampling oscilloscope.