BRILLOUIN–RAMAN MULTI-WAVELENGTH LASER COMB GENERATION BASED ON Bi-EDF BY USING DUAL-WAVELENGTH IN DISPERSION COMPENSATING FIBER

A multi-wavelength Brillouin fiber laser (BFL) is demonstrated by using dual-wavelength fiber in a 7.7 km dispersion compensating fiber (DCF) that is incorporated in a 49 cm Bismuth erbium-doped fiber laser. The BFL operates in C-band, which is shifted by 0.08 nm and amplified by a Raman pump (RP). The threshold power for BP pumps and the Raman pump is achieved at 7 dBm and around 35 mW, respectively. The exclusive and practical benefits of using reduced high nonlinear Bismuth-erbium doped fiber ( Bi-EDF ) in implementing a four-wave mixing (FWM) method for multi-wavelengths Brillouin fiber laser (BFL) applications are experimentally demonstrated. Coupled interactions of Brillouin, Raman, and FWM scattering explain the unique feature of proposed configuration.