Fig. 4
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Dual-frequency Brillouin lasing and multi-wavelength light generation in a multimode regime in the 2-µm waveband. (a) Stokes laser threshold measurement. (b) Experimental recording with 106 GHz frequency spacing of the dual pumping and cavity-free FWM configuration at 200 mW pomp power. (c) Experimental FWM results as a function of the injected power at fixed pumps frequency of 106 GHz in close cavity configuration.
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