光强对短脉冲在准周期光学超晶格中传输的影响  

Ultra-short pulse propagating in Fibonacci optical super-lattice influenced by input intensity

作　　者：高艳霞[1] 范滇元[2] 

机构地区：[1]深圳大学理学院,广东深圳518060 [2]中国科学院上海高功率激光物理国家实验室,上海201800

出　　处：《强激光与粒子束》2004年第1期27-30,共4页High Power Laser and Particle Beams

基　　金：广东省自然科学基金资助课题(000851)

摘　　要：　在考虑自相位调制和高阶群速色散的情况下,分析了超短脉冲在准周期Fibonacci超晶格中传输时,入射光强对脉冲传输特性的影响。结果表明:入射光强度对脉冲传输特性影响很大,不但使频谱展宽,而且限制超晶格的有效长度,是超短脉冲进行频率转换的主要考虑因素之一。In this paper, taking into account both the self-phase-modulation (SPM) and the lowest and second order group velocity dispersion (GVD), the propagation equations of ultra-short pulses is given through numerical analysis. The influence of input intensity on ultra-short pulses in Fibonacci super-lattice is analyzed. The calculations show that the input intensity cause broadening in the spectrum and set a limit to effective length of super-lattice, which is an important factor for frequency conversion.

关 键 词：自相位调制 群速色散 准周期Fibonacci光学超晶格 入射光强度 

分 类 号：O437[机械工程—光学工程]