利用级联的受激布里渊效应,自激发布里渊掺铒光纤激光器可以实现常温下的多波长激光输出。通过在自激发掺铒光纤激光器中引入一个高双折射萨尼亚克(Sagnac)环形滤波器,调节萨尼亚克环形滤波器的偏振控制器(PC),实现了可调谐多波长输出,同时在实验中观测到双布里渊多波长带的现象。研究了这种光纤激光器中萨尼亚克环形滤波器的带宽和980 nm抽运光功率对输出波长数的影响,在萨尼亚克环形滤波器的带宽为83.3 nm以及980 nm抽运光功率为260 mW时,得到了52个间隔为0.088 nm的多波长激光输出。

Using cascaded stimulated Brillouin scattering (SBS), the self-exciting Brillouin erbium-doped fiber laser (BEDFL) is a multi-wavelength source at room temperature. The multi-wavelength output of the BEDFL with a high-birefringence Sagnac loop filter is tunable by adjusting the polarization controller (PC) in the Sagnac loop. At the same time, dual Brillouin bands appear during the experiment. The influences of the bandwidth of the Sagnac loop and the pump power at the 980 nm on the multi-wavelength output are investigated in detail. A multi-wavelength band with 52 lines is achieved when the bandwidth of the Sagnac loop filter is 83.3 nm and the pump power at the 980 nm is 260 mW.