Troles J, Coulombier Q, Canat G, Duhant M, Renard W, Toupin P, Calvez L, Renversez G, Smektala F, El Amraoui M, Adam J L, Chartier T, Mechin D, Brilland L
Equipe Verres et Céramiques, UMR-CNRS 6226, Sciences Chimiques de Rennes, Université de Rennes I, 35042 Rennes Cedex, France.
Opt Express. 2010 Dec 6;18(25):26647-54. doi: 10.1364/OE.18.026647.
Microstructured optical fibers (MOFs) are traditionally prepared using the stack and draw technique. In order to avoid the interfaces problems observed in chalcogenide glasses, we have developed a new casting method to prepare the chalcogenide preform. This method allows to reach optical losses around 0.4 dB/m at 1.55 µm and less than 0.05 dB/m in the mid IR. Various As(38)Se(62) chalcogenide microstructured fibers have been prepared in order to combine large non linear index of these glasses with the mode control offered by MOF structures. Small core fibers have been drawn to enhance the non linearities. In one of these, three Stokes order have been generated by Raman scattering in a suspended core MOF pumped at 1995 nm.
微结构光纤（MOF）传统上是采用堆叠拉制技术制备的。为了避免在硫系玻璃中观察到的界面问题，我们开发了一种新的铸造方法来制备硫系预制棒。这种方法能够在1.55 µm波长处实现约0.4 dB/m的光损耗，在中红外波段光损耗小于0.05 dB/m。为了将这些玻璃的大非线性折射率与MOF结构提供的模式控制相结合，已经制备了各种As(38)Se(62)硫系微结构光纤。已经拉制出小芯径光纤以增强非线性效应。在其中一根光纤中，通过在1995 nm泵浦的悬浮芯MOF中进行拉曼散射产生了三个斯托克斯阶。
