双模光纤中的多模受激布里渊散射。

Intermodal stimulated Brillouin scattering in two-mode fibers.

机构信息

Department of Physics, Chung-Ang University, Seoul 156-756, South Korea.

出版信息

Opt Lett. 2013 Jun 1;38(11):1805-7. doi: 10.1364/OL.38.001805.

DOI:10.1364/OL.38.001805

Abstract

Characterization of stimulated Brillouin scattering (SBS) in an elliptic-core two-mode fiber is experimentally demonstrated. The LP(01) or LP(11) mode is selectively launched to a fiber under test by a mode-selective coupler as a Brillouin pump, and the Brillouin gain spectra are analyzed for different mode pairs of the pump and probe waves. Intermodal SBS between counterpropagating LP(01) and LP(11) modes is observed, and the efficiency is measured to be about 58% of that of the SBS between the LP(01) modes.

摘要

实验演示了椭圆芯双模光纤中受激布里渊散射（SBS）的特性。通过模式选择耦合器将 LP(01) 或 LP(11) 模式选择性地注入到测试光纤中作为布里渊泵浦，然后分析不同泵浦和探测波模式对的布里渊增益谱。观察到反向传播的 LP(01) 和 LP(11) 模式之间的模式间 SBS，并测量其效率约为 LP(01) 模式之间 SBS 的 58%。