基于无源腔多波长单模布里渊光纤激光器

为了实现一种单模多波长布里渊光纤激光器，采用了将掺铒光纤放大器放置于1个10m左右的无源光纤振荡腔外，各阶布里渊激光通过耦合器可反馈回送到掺铒光纤放大器中再次放大，作为下一阶布里渊激光的抽运光来产生多阶布里渊激光的方法，并进行了理论分析和实验验证。结果表明，在现有掺铒光纤放大器输出功率的水平，在这种多波长单模布里渊光纤激光器中观察到了7个布里渊激光波长。预计其在光生微波、密集波分复用系统、光学惯性旋转传感和超高精度光谱分析等领域将会有着极其广泛的应用。

Multiwavelength and single longitudinal mode Brillouin fiber lasers based on passive cavities

In order to obtain a multiwavelength and single longitudinal mode Brillouin fiber laser , an erbium-doped fiber amplifier was placed outside of an about 10m passive optical cavity .Each order Brillouin laser was fed back to the erbium-doped fiber amplifier to amplify again through the coupler .And then, it was used as pumping laser for the next order Brillouin laser to produce multi-order laser Brillouin laser .After theoretical analysis and experimental verification , the result shows that more than seven orders of Stokes signals are observed in the multi-wavelength single-mode fiber Brillouin laser under the condition of current output power of the erbium-doped fiber amplifier .The study will have very wide range of applications in optical generations of microwave , dense wavelength division multiplexing , optical inertial rotation sensor , ultra high precision spectral analysis and so on .