【摘 要】
：
研究了线性系统中偏振模色散对均方根脉宽的影响。考虑了光源初始啁啾的作用 ,推导出均方根脉宽的解析表达式 ,分析表明 :二阶偏振模色散对脉冲展宽的作用与群速度色散及啁啾
【机 构】
：
北京邮电大学理学院物理部123信箱,北京邮电大学理学院物理部123信箱,北京邮电大学理学院物理部123信箱,北京邮电大学理学院物理部123信箱,北京邮电大学理学院物理部123信箱,北京邮电大学理学院物
论文部分内容阅读
研究了线性系统中偏振模色散对均方根脉宽的影响。考虑了光源初始啁啾的作用 ,推导出均方根脉宽的解析表达式 ,分析表明 :二阶偏振模色散对脉冲展宽的作用与群速度色散及啁啾有关 ,一阶偏振模色散的作用则与这两者无关。以啁啾高斯脉冲为例 ,推导出一阶偏振模色散补偿前、后均方根脉宽的解析表达式 ,结果表明 ,适当选择群速度色散和初始啁啾参数 ,可以有效地抑制偏振模色散的展宽效应 ;与主态传输法比较 ,啁啾的存在对后向补偿方法的影响更大
The influence of polarization mode dispersion on rms pulse width in linear system is studied. The effect of initial chirp of light source is considered and the analytical expression of root mean square pulse width is derived. The analysis shows that the effect of second-order polarization mode dispersion on pulse broadening is related to group velocity dispersion and chirp, and the function of first-order polarization mode dispersion It has nothing to do with both. Taking the chirped Gaussian pulse as an example, the analytical expression of the first-order polarization mode dispersion before and after compensation is deduced. The results show that the proper choice of group velocity dispersion and initial chirp parameters can effectively suppress the polarization mode dispersion Broadening effect; compared with the main state transmission method, the presence of chirp has a greater impact on the backward compensation method
其他文献
报道了一台连续792 nm Ti∶Al2O3激光器纵向抽运的(Tm,Ho)∶YLF微片激光器.在室温条件下,当抽运功率为680 mW时,激光器在2.06 μm波长的输出功率达到90 mW.激光器阈值为380 m
This paper describes a data reconstruction technique for a multi-function sensor based on the Mestimator, which uses least squares and weighted least squares m
Clustering routing protocols excel in several aspects of wireless sensor networks (WSNs). This article proposes a clustering and multihop routing protocol (CMRP
应用多重散射方法计算了二维介质柱构成的非晶光子材料的缺陷态。在非晶光子材料中抽掉不同位置的圆柱会产生频率不同的缺陷模 ,但缺陷模的能量都是非常局域的 ,能量基本上集
The effects of rare earth (RE) on the microstructures and properties of high carbon high speed steel (HCHSS) were investigated. The results show that when suita
An experimental investigation of three-dimensional flow field in a film-cooled turbine model is carried out by using particle image velocimeter (PIV) in a low-s
In consideration that behavior of curvature ductility of interior support directly influences the degree of moment modification of unbonded prestressed concrete
采用钨丝探针电解预富集 石墨炉原子吸收法测锡 ,兼有电解预富集和探针原子化的优点。对电解液组成、溶液pH值、电解电压、富集时间等实验条件进行了优化。方法检出限达到 0
目的:探讨五苓散方的病证运用规律,以便更好地服务于临床.方法:采用数据挖掘技术,对1 112则近现代医案中五苓散的适应证进行归纳总结,提取有效信息.结果:临床上五苓散治疗效
介绍一种基于注入法原理进行低压树状配电网接地故障定位的新装置。装置由恒流信号电源和信号检测装置两部分组成。在恒流信号电源部分控制系统的设计中采用了闭环PID直流反