In this letter, ultra-fast pulse compression capacity of a triangular corrugated photonic crystal (PhC) was investigated through the finite difference time domain method. The group velocity dispersion of the devised structure was dramatically improved compared to the conventional 1-D PhCs. Calculated dispersion relation of the allowed modes indicates that the geometrical parameters of the proposed photonic architecture can be arranged such that the central wavelength of the incoming pulse lies at the band-edge of the transmission spectrum. The presented design was successfully employed as a pulse dispersion compensator, and the compression factors up to 353 were documented. In addition, the necessity of the optimum condition for the achievement of an effective pulse compression mechanism was discussed.

中文翻译：

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基于三角波纹光子晶体的高效超短脉冲压缩器

在这封信中，通过有限差分时域方法研究了三角波纹光子晶体 (PhC) 的超快脉冲压缩能力。与传统的一维 PhC 相比，所设计结构的群速度色散得到了显着改善。计算出的允许模式的色散关系表明，所提出的光子结构的几何参数可以这样安排，使输入脉冲的中心波长位于传输光谱的带边。所提出的设计已成功用作脉冲色散补偿器，并记录了高达 353 的压缩因子。此外，讨论了实现有效脉冲压缩机制的最佳条件的必要性。