受激布里渊散射效应具有窄带增益的特性，是实现低本底噪声激光器的一种有效方式。基于高Q值光纤环形谐振腔研究低噪声布里渊激光器。通过Pound-Drever-Hall（PDH）锁定技术将泵浦光锁定到8 m长的单模环形谐振腔中，可得到与泵浦光相差一个10.81 GHz频率的反向传播斯托克斯光。采用相关延迟自外差方法测量斯托克斯光的频率噪声。实验结果表明，基于光纤环形谐振腔的布里渊激光器的阈值为5.3 mW，在高频部分（频率大于10 kHz）处，后向斯托克斯光对泵浦光频率噪声的抑制达到30 dB，接近理论抑制极限（34 dB）。

受激布里渊散射效应是一种典型的三阶光学非线性效应，通过强光激发可以在不同介质中产生。受激布里渊散射激光具有低阈值、超窄线宽、相邻阶散射光相向传播等优异特性，促进其在高分辨率光谱仪、光学传感以及量子计算等领域的广泛应用。布里渊激光输出的光谱线宽超窄且相邻阶光束相向传播，为集成化光学陀螺的构建提供了便利。首先总结了受激布里渊散射效应的产生机理，分析了不同介质中受激布里渊散射光的特性，进而综述了基于微腔结构的布里渊光学陀螺的研究进展，最后对基于布里渊散射效应的集成化光学陀螺的研究前景进行了展望。

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。

A simple technique for achieving a stable, room temperature and multi-wavelength lasing with narrow linewidth is demonstrated using Brillouin fiber laser (BFL) with a 100-m-long photonic crystal fiber (PCF) in conjunction with a dual-pass configuration. A broadband fiber Bragg grating (FBG) operating in the C-band region is incorporated at the end side of the setup to allow a dual–pass operation. The proposed BFL can operate at any wavelength depending on the Brillouin pump wavelength and the FBG’s reflection region used. With a Brillouin pump (BP) of 15.7 dBm, approximately 7 Stokes and 4 anti-Stokes lines are obtained with a line spacing of 0.08 nm.

A high-efficiency Brillouin fiber ring laser is demonstrated using the standard single-mode fiber. The laser exhibits a 3.6-mW threshold. The output power is 22 mW with 40-mW pump power, and the maximum optical-to-optical efficiency is 55%. The output is single wavelength with a 3-dB linewidth of 5 MHz, and the interval of center frequency between the laser and the pump light is 11 GHz (0.088 nm). It is shown that the stimulated Brillouin scattering threshold of ring resonator is lower and the energy transfer efficiency is higher than those in fiber.