基于多层膜系传输矩阵理论的双啁啾镜设计与实验

Design and Experiment of Double Chirped Mirrors Based on Transfer Matrix Theory

把光在多层膜中传输的矩阵理论应用于双啁啾镜的设计。理论分析结果表明设计的双啁啾镜可以对波长从600 nm到1 100 nm波段范围的色散进行补偿,每次可以实现-100 fs2的色散补偿量,而且双啁啾镜可以有效降低单镜色散补偿中的寄生振荡。用设计制造的双啁啾镜进行了实验测试,用双啁啾镜对畸变脉冲进行色散补偿,实验结果表明:经过两次色散补偿可以将脉冲还原至初始状态,而过量的负色散又将脉冲重新展宽。

Double-chirped mirror is designed based on transfer matrix theory.The designed double-chirped mir- ror can compensate wavelength from 600 nm to 1 100 nm.The dispersion compensation is -100fs2 each bunch. Dispersion compensation experiments are conducted by using the double-chirped mirror. The dispersed ultrashort pulse can be compressed to 9.3fsby double-chirped mirror.