Cheng Ji, Lee Jennifer H, Wang Ke, Xu Chris, Jespersen Kim G, Garmund Martin, Grüner-Nielsen Lars, Jakobsen Dan
School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.
Opt Express. 2011 Apr 25;19(9):8774-80. doi: 10.1364/OE.19.008774.
We demonstrate generation of Cerenkov radiation at 850 nm in a higher-order-mode (HOM) fiber. The LP02 mode in this solid, silica-based fiber has anomalous dispersion from 690 nm to 810 nm. Cerenkov radiation with 3 nJ pulse energy is generated in this module, exhibiting 60% energy conversion efficiency from the input. The HOM fiber provides a valuable fiber platform for nonlinear wavelength conversion with pulse energies in-between index-guided silica-core photonic crystal fibers and air-core photonic bandgap fibers.
我们展示了在高阶模（HOM）光纤中产生850纳米的切伦科夫辐射。这种基于二氧化硅的固体光纤中的LP02模在690纳米至810纳米范围内具有反常色散。在该模块中产生了脉冲能量为3纳焦的切伦科夫辐射，其能量转换效率相对于输入能量为60%。HOM光纤为非线性波长转换提供了一个有价值的光纤平台，其脉冲能量介于折射率引导的二氧化硅芯光子晶体光纤和空芯光子带隙光纤之间。
