Fiber Laser Source for Dense Wavelength Division Multiplexed System

A distinctive cavity-configuration of a Brillouin/erbium fiber laser (BEFL) that features multiwavelength and bidirectional operation is presented. Multiple wavelength Stokes generation at Brillouin-shift frequency was realized using a Brillouin/erbium fiber laser that was configured in a two identical cavity configuration system. The laser outputs an 11 GHz comb of 26-channeis at around 1560 nm. The 3dΒ spectral width of each line is less than 0.04 nm with signal to noise ratio (SNR) of 17.91 d