The multi-wavelength Brillouin laser based on highly nonlinear fiber

We propose and demonstrate the generation of multiwavelength fiber lasers via four-wave mixing in a dual wavelength Brillouin laser cavity. Using four-wave mixing effect in highly nonlinear fiber loop, the output wavelengths with100 nm range and tunable wavelength interval is achieved. In addition, due to the stimulated Brillouin effect, the linewidth of the output Brillouin laser reaches 440Hz.