Experimental investigation on the single-wavelength Brillouin fiber ring laser

摘要

A single-wavelength Brillouin fiber ring laser is presented and its characteristics are investigated experimentally. The pump wavelength is 1551.8nm, and the length of the fiber in the ring cavity is about 13km. The influence of the pump and the output coupler on the laser output spectrum is discussed. The results show that high output coupling ratio leads to high power of output laser. When the power of the pump is over -12.8dBm, an obvious stimulated Brillouin scattering peak is acquired. The laser has low threshold, and is proved to be stable with power fluctuations of less than 0.7dB over more than 1 h.