Fig. 1. Experimental schematics of (a) multi wavelength Brillouin fiber laser, (b) double Brillouin frequency shift realization and (c) triple Brillouin frequency shift realization

Fig. 2. Self-excited oscillation modes at 1562.8 nm

Fig. 3. Output spectra at different 980 nm pump powers when BP power is 5.56 dBm

Fig. 4. Output spectrum of lasers at 980 nm pump power of 24.2 dBm

Fig. 5. (a) Tuning range and (b) multiwavelength number under different 980 nm pump power with BP power of 5.56 dBm and 9 dBm

Fig. 6. Generated wavelength number of lasers within tuning range

Fig. 7. Output spectra at different 980 nm pump powers. (a) 20.41 dBm (110 mW); (b) 24.2 dBm (265 mW)

Fig. 8. Output stability of multiwavelength lasers with BP power of 5.56 dBm and pump power of 24.2 dBm

Fig. 9. Output spectra at different 980 nm pump powers with BP power of 3.2 dBm

Fig. 10. Output spectra of lasers at 980 nm pump power of 24.3 dBm

Fig. 11. Wavelength number of lasers within tuning range

Fig. 12. Output spectra of lasers with different BP wavelengths

Fig. 13. Output stability of multiwavelength lasers with BP power of 3.2 dBm and pump power of 24.3 dBm