皮秒类提升脉冲串的产生与传输  

The Generation and Transportation of the Picosecond Like-raised Pulse Trains

作　　者：聂合贤[1] 王路云[2] 李录[2] 

机构地区：[1]运城学院物理与电子工程系,山西运城044000 [2]山西大学物理电子工程学院,山西太原030006

出　　处：《量子光学学报》2007年第3期212-218,共7页Journal of Quantum Optics

基　　金：国家自然科学基金(60477026);山西省自然科学基金(2007011007)

摘　　要：通过函数和变量变换给出变系数非线性薛定谔方程的一个新的精确解,它可以用来描述非均匀光纤中的调制不稳定过程。基于这个精确解我们给出一类新的类提升脉冲串,并讨论该脉冲串的传输特性。结果表明,当类提升脉冲串能量大于某一阈值时类提升脉冲串可以稳定传输。同时我们还比较指数控制系统和理想系统中类提升脉冲串的传输,结果表明选择合适的控制系统可以抑制脉冲间的相互作用,这对增加光通信的传输比特率是非常有益的。Using direct variable and function transformation, the paper describing the modulation instability process in inhomogeneous fibers, presents a new exact solution, for generalized nonlinear Schroedinger equation with variable coefficients. Based on this exact solution, a like-raised pulse train is proposed, and the transmission properties are discussed in detail. The results show that the like-raised pulse train can be transported stably along inhomogeneous fiber when the energy of each pulse in the pulse train is lager than some threshold value. Furthermore,the numerical results show that using a suitable control system can reduce the interaction between pulses in the pulse train by making a comparison between the ideal system and the exponentially distributed control system.

关 键 词：非线性薛定谔方程 调制不稳定性 类提升脉冲串 

分 类 号：O431[机械工程—光学工程]