We demonstrate a simple multi-wavelength Brillouin-erbium fiber laser (MBEFL) with triple-Brillouin-frequency-shift spacing. The single-, double-, and triple-Brillouin-frequency spaced multilwavelentth generation of the MBEFL is investigated in this paper. The output of the MBEFL is optimized by adjusting the output power and wavelength of the Brillouin pump (BP) and the 980 nm pump power of the erbium-doped fiber amplifier (EDFA). In the experiments, when setting the BP power to 2.5 mw and the BP wavelength to 1530.33 nm and the 980 nm pump power of EDFA1 and EDFA2 to 286 mw, 330mw, respectively, up to 11 Brillouin stokes with triple-Brillouin-frequency-shift interval are generated. The output wavelength is tunable from 1529.55nm to 1561.01nm. The proposed multi-wavelength fiber laser has potential applications in the areas of space optical communication and optical communications and microwave signal source.
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