Park Sangwoo, Cha Seongwoo, Oh Jungsuk, Lee Hwihyeong, Ahn Heekyung, Churn Kil Sung, Kong Hong Jin
Opt Express. 2016 Apr 18;24(8):8641-6. doi: 10.1364/OE.24.008641.
The self-phase locking of a stimulated Brillouin scattering-phase conjugate mirror (SBS-PCM) allows a simple and scalable coherent beam combination of existing lasers. We propose a simple optical system composed of a rotating wedge and a concave mirror to overcome the power limit of the SBS-PCM. Its phase locking ability and the usefulness on the beam-combination laser are demonstrated experimentally. A four-beam combination is demonstrated using this SBS-PCM scheme. The relative phases between the beams were measured to be less than λ/24.7.
受激布里渊散射相位共轭镜（SBS-PCM）的自相位锁定能够实现现有激光器简单且可扩展的相干光束合成。我们提出了一种由旋转楔形镜和凹面镜组成的简单光学系统，以克服SBS-PCM的功率限制。通过实验证明了其相位锁定能力以及在光束合成激光器中的实用性。利用这种SBS-PCM方案实现了四光束合成。测量得到各光束之间的相对相位小于λ/24.7。
