Optoelectronics Research Centre, University of Southampton, SO17 1BJ, United Kingdom.
Opt Lett. 2009 Aug 15;34(16):2483-5. doi: 10.1364/ol.34.002483.
The generation of 236 mW of second-harmonic power in a 32-cm-long periodically poled silica fiber, corresponding to an average conversion efficiency of 15.2+/-0.5%, is reported. This represents the highest normalized second-harmonic conversion and the highest average second-harmonic power ever reported for a periodically poled silica fiber, to our knowledge. The enhancement is attributed to an improved design of the specialty twin-hole fiber and the extension of the nonlinear interaction length.
据报道，在一根 32 厘米长的周期性极化硅光纤中产生了 236 毫瓦的二次谐波功率，对应的平均转换效率为 15.2+/-0.5%。就我们所知，这是迄今为止周期性极化硅光纤中最高的归一化二次谐波转换效率和最高的平均二次谐波功率。这种增强归因于改进的特种双孔光纤设计和非线性相互作用长度的延长。
