Intermodal stimulated Raman scattering in hydrogen-filled hollow-core photonic crystal fiber
Intermodal stimulated Raman scattering in hydrogen-filled hollow-core photonic crystal fiber
复制标题
充氢空芯光子晶体光纤中的多模态受激拉曼散射
DOI：
10.1364/josab.29.001563
复制
发表时间：
2012
影响因子：
1.9
通讯作者：
P. Russell
中科院分区：
文献类型：
--
作者：
M. Ziemienczuk;A. Walser;A. Abdolvand;P. Russell
研究了微多模充气空芯光子晶体光纤中的受激拉曼散射。虽然，二阶斯托克斯光出现在基模低于一定的阈值能量，它被观察到切换到一个两瓣的高阶模式高于此阈值。通过在气体中产生双叶移动相干波，可以实现向更高阶模式的转换，该波提供相位匹配和强模间泵-斯托克斯重叠。一个理论模型的开发，基于此物理解释，同意定量与实验结果。这些结果为需要相位匹配的全光纤基于气体的非线性过程提供了新的机会，例如相干反斯托克斯拉曼散射，以及提供了（例如）将光从高阶泵浦模式有效地转换为基本斯托克斯模式的手段。
Stimulated Raman scattering is investigated in a slightly multimode gas-filled hollow-core photonic crystal fiber. Although, second-order Stokes light appears in the fundamental mode below a certain threshold energy, it is observed to switch to a two-lobed higher order mode above this threshold. Conversion to the higher order mode is made possible by the creation of a two-lobed moving coherence wave in the gas that provides both phase-matching and a strong intermodal pump-Stokes overlap. A theoretical model is developed, based on this physical interpretation that agrees quantitatively with the experimental results. The results suggest new opportunities for all-fiber gas-based nonlinear processes requiring phase-matching, such as coherent anti-Stokes Raman scattering, as well as providing a means (for example) of efficiently converting light from a higher order pump mode to a fundamental Stokes mode.
影响因子：
8.6
作者：
Joly, N.Y.;Nold, J.;Russell, P. St. J.
通讯作者：
Russell, P. St. J.