中文摘要：

提出一种基于反馈光纤环（FFL）的多波长布里渊掺铒光纤激光器（Mw-BEFL）。主腔由光环形器构成单通谐振腔，长度为50m，而FFL选用传统单纵模布里渊光纤激光器的光纤，长度为10m，以保证每一阶斯托克斯波及反斯托克斯波处于单纵模运行状态，并添加恒温系统消除外界干扰。采用延时干涉法，测得第一阶斯托克斯有45dB的边模抑制比和3．23kHz的线宽，通过调节不同的掺铒光纤放大器（EDFA）功率，对比分析了每一阶斯托克斯波和反斯托克斯波的关系。利用级联受激布里渊散射和四波混频效应，最终获得了50nm（1520-1570nm）可调范围的间隔为0．084nm的15个稳定输出的多波长布里渊掺铒光纤激光器。

英文摘要：

A novel multiwavelength Brillouin-erbium fiber laser （MW-BEFL） based on the feedback fiber loop （FFL） is proposed. The main single pass ring is constructed by an optical circulator and a 50 m single mode fiber （SMF）. In order to guarantee the single longitudinal mode operation of each Stokes waves and anti-Stokes waves, the FFL is configured with a 10 m SMF of traditional Brillouin-fiber laser. The system is enclosed in temperature control system so that environment disturbance is reduced. 45 dB sidemode suppression and 3.23 kHz linewidth of the first-order Stokes wave are measured by delay interference method. Through the cascaded stimulated Brillouin scattering （SBS） and degenerate four-wave mixing （FWM） process, the laser can be freely and steadily tuned in 50 nm range from 1525 nm to 1575 nm with 0. 084 nm wavelength spacing.