We propose and experimentally demonstrate a wide tuning range triple frequency spacing multi-wavelength Brillouin erbium fibre laser (MBEFL). The laser can be tuned in the C- and L-bands of the optical communication windows. At a Brillouin pump power of 3 dBm and 1480-nm pump power of 195 mW, the proposed MBEFL generates up to five triple spacing Brillouin Stokes lines that can be tuned over 60 nm (from 1535 to 1595 nm). A wide tuning range is achieved through the combined techniques of pre-amplification and a virtual mirror of stimulated Brillouin scattering in the laser cavity. The generated Brillouin Stokes lines exhibit good flatness and stability with minimal power fluctuation.

我们提出并通过实验证明了宽调谐范围的三频间隔多波长布里渊in光纤激光器（MBEFL）。可以在光通信窗口的C波段和L波段中调谐激光。在3 dBm的布里渊泵浦功率和195 mW的1480 nm泵浦功率下，拟议的MBEFL最多可产生五条三倍间距的布里渊斯托克斯线，可在60 nm（从1535到1595 nm）之间进行调谐。通过预放大和激光腔中受激布里渊散射的虚拟反射镜的组合技术，可以实现宽广的调谐范围。生成的布里渊斯托克斯线显示出良好的平坦度和稳定性，并且功率波动最小。