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飞秒激光共振增强腔在非线性光学、精密光谱学等研究领域有重要应用,尤其是近年来已成为产生高重频紫外光梳的强大工具.采用循环稳定电场方法分析了飞秒激光脉冲在共振增强腔中的增强和色散特性,给出了增强倍数与精细度的关系及共振带宽与精细度和腔内色散量的关系.实验上实现了175 MHz,15 fs的宽谱飞秒激光脉冲的共振增强,增强倍数约为10倍左右.
Femtosecond laser cavity has important applications in nonlinear optics, precision spectroscopy and other fields of research, especially in recent years has become a powerful tool to produce high repetition frequency UV comb. The use of circularly-stable electric field method to analyze the femtosecond laser pulse in The relationship between the enhancement factor and the fineness and the relationship between the resonance bandwidth and the fineness and the amount of dispersion in the cavity are given.Experimental results show that the wideband femtosecond laser pulse of 175 MHz and 15 fs The resonance enhancement, enhanced multiples of about 10 times.