基于DDF的光脉冲绝热压缩和高阶孤子压缩

采用分步傅里叶数值计算方法研究了不同光纤长度、不同色散剖面曲线的色散渐减光纤(DDF)中光脉冲压缩的规律,最后以线性DDF为例,研究了光纤长度和孤子阶数对DDF中高阶孤子压缩性能的影响.数值计算结果表明,基于DDF的光脉冲压缩可以获得低脉座和无频率啁啾的高质量超短光脉冲.特别地给出了光纤长度和色散剖面对脉冲压缩性能如压缩比、峰值功率和脉座等的影响,对DDF光脉冲压缩有实际的指导意义.

The Adiabatic Compression and Higher-order Soliton Compression in DDF

By split-step Fourier method,the optical pulse compression in DDF was simulated and analyzed, in case of different fiber length and dispersion profile curve. The effect of the high-order soliton compression in linear DDF was detailed,either the fiber length or the soliton order. It shows that high-quality ultra-short optical pulses with little pedestal energy and low frequency chirp can be provided, particularly, several factors mentioned above which has important influence to the pulse compression properties, such as compression ratio, peak power and pulse pedestal energy was considered. These conclusions will be a practical guide of the optical pulse compression in DDF.