论文标题
高度非线性高指数对比双核光纤中飞秒脉冲的宽带自切换
Broadband self-switching of femtosecond pulses in highly nonlinear high index contrast dual-core fibre
论文作者
论文摘要
在本文中，我们证明了在高度非线性高指数对比双核光纤中，在1700 nm处波长的飞秒脉冲的脉冲能量州的非线性自切换。纤维结构由两个微构想核心和一个由内部开发的两个热匹配的软玻璃制成的实心覆层组成。在单调的脉冲能量从1 nj到3 NJ的单调增加下，在其异常分散区域的35 mm纤维长度下观察到了双开关行为。空间强度分布测量值确定了16.7 dB的开关对比度，并且两个输出通道的注册光谱显示宽带切换行为在150 nm之内。获得的结果表明，与先前的实验作品相比，一种新型的孤子开关类型，代表了一个重大进展，并且具有较高的应用潜力。
In this paper, we demonstrate a pulse energy-governed nonlinear self-switching of femtosecond pulses at wavelength of 1700 nm in a highly nonlinear high index contrast dual-core fibre. The fibre structure is composed of two microdimension cores and a solid cladding made of two thermally matched soft glasses developed in-house. A double switching behaviour under monotonic increase of the input pulse energy from 1 nJ to 3 nJ was observed at 35 mm fibre length in its anomalous dispersion region. A spatial intensity distribution measurement identified a switching contrast of 16.7 dB, and the registered spectra of the two output channels revealed a broadband switching behaviour within 150 nm. The obtained results indicate a novel type of solitonic switching and represent a significant progress in comparison to the previous experimental works and has a high application potential.
