Multi-wavelength Brillouin Erbium Fiber laser with Pulsing characteristics

A multi-wavelength Brillouin Erbium Fiber laser (BEFL) with single Brillouin frequency spacing and pulsing characteristics is demonstrated. The proposed multi-wavelength BEFL uses two optical circulators to route the Brillouin Stokes and Brillouin pump (BP) into the cavity. Multi-wavelength combs with 20 lines and spacing of 0.086 nm is obtained by using the non-zero dispersion shifted fiber (NZ-DSF) as the Brillouin gain medium (BGM) and 5 lines with 0.079 nm spacing with 500 m long SMF. Pulsing characteristic is also observed in both multi-wavelength BEFLs. The measured repetition rate are in the kilohertz range due to the long cavity.