超短脉冲掺铥光纤激光器的理论研究  

Theoretical Research of Ultra-short Pluse Tm-doped Fiber Laser

作　　者：黄春雄[1] 陈海燕[1] 

机构地区：[1]长江大学物理科学与技术学院,湖北荆州434023

出　　处：《长江大学学报（自然科学版）》2011年第12期27-29,12,共3页Journal of Yangtze University(Natural Science Edition)

基　　金：湖北省自然科学基金项目(2008CDB317);长江大学创新团队项目

摘　　要：利用时域ABCD矩阵方法对石墨烯饱和吸收体被动锁模的超短脉冲掺铥光纤激光器进行了理论研究,导出了超短脉冲脉宽与啁啾的解析式,讨论了非线性效应和色散等参数对脉宽与啁啾的影响。结果表明,在负色散区可得到较短的脉冲宽度,且随非线性效应的增加而减小,正色散区的脉宽比负色散区的大。由于负色散与低非线性效应的相互作用可得到零啁啾解,因此理论上可以获得100fs以下的2μm超短脉冲。Based on time domain ABCD matrix formalism,the characteristics of expression of pulse-width and chirp in a ultra-short pluse Tm-doped fiber laser were analyzed theoretically.The expression of pluse-width and chirp were derived,and the influences of optical fiber dispersion and optical fiber nonlinearity were investigated.The results show that the pulse width is shorter in the negative dispersion region,and the pulse width decreases with the increase of SPM effect.The pulse width is always larger in positive dispersion region than that in negative dispersion region.A zero chirp solution can be attained because of the interaction of negative dispersion and low SPM.In theory,ultra-short pulse at 2μm with pluse-width below 100fs can be achieved.

关 键 词：光纤激光器 掺铥光纤 石墨烯 时域ABCD矩阵 被动锁模 

分 类 号：TN242[电子电信—物理电子学]