Precision and Intelligence Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
Opt Lett. 2011 Jun 15;36(12):2378-80. doi: 10.1364/OL.36.002378.
Stimulated Brillouin scattering (SBS) in a perfluorinated graded-index polymer optical fiber (POF) with 120 μm core diameter was experimentally observed for the first time, to the best of our knowledge, at 1.55 μm wavelength with the pump-probe technique. Compared to spontaneous Brillouin scattering previously reported, the Brillouin gain spectrum (BGS) was detected with an extremely high signal-to-noise ratio, even with a short POF (1 m) and scrambled polarization state. We also investigated the BGS dependences on probe power and temperature, which indicate that SBS in a POF measured with this technique can be utilized to develop high-accuracy temperature sensing systems.
受激布里渊散射（SBS）在 120μm 芯径的全氟梯度折射率聚合物光纤（POF）中首次被实验观察到，据我们所知，在 1.55μm 波长下使用泵浦-探测技术。与之前报道的自发布里渊散射相比，布里渊增益谱（BGS）的检测具有极高的信噪比，即使在短光纤（1m）和随机偏振态下也是如此。我们还研究了 BGS 对探测功率和温度的依赖性，这表明使用该技术测量的 POF 中的 SBS 可用于开发高精度温度感测系统。
