中文摘要：

为提高普通布里渊激光器的输出功率和激光效率，提出一种基于小纤芯光子晶体光纤（PCF）的环形腔布里渊光纤激光器．在环路中加入了掺铒光纤放大器和光滤波器，抵消了光纤环路的损耗，削减了掺铒光纤的受激辐射．实验结果表明，应用该激光器只需25m的小纤芯PCF就可实现稳定的布里渊激光输出，并且输出激光的主要能量来源是环中的掺铒光纤放大器．与普通单模光纤相比，小纤芯PCF具有非线性效应强、布里渊增益大的特点，适合作为布里渊光纤激光器的增益介质．

英文摘要：

To improve the output power and the sers, a small core photonic crystal fiber （PCF） laser efficiency compared with common fiber Brillouin la based ring-cavity Brillouin fiber laser was presented. An erbium-doped fiber amplifier and an optical filter were added to the fiber ring,fiber ring loss was compensated and the stimulated emission of the Erbium-doped fiber were suppressed respectively. Experimental results show that the stable Brillouin laser is achieved by the fiber laser using 25 m small core PCF, and that the erbium doped fiber amplifier in the fiber ring is the major energy source of the output laser. Compared with common single mode fiber, the small core PCF has higher non-linear coefficient and larger Brillouin gain, and is suitable for the gain medium of Brillouin fiber laser.