基于检测的狭窄乐队的电力监视技术的色彩的分散( CD )是当这个方法的表演被象带宽和检测频率乐队,的中心频率那样的因素降低时,监视技术的划算、简单的 CD 之一自我阶段调整( SPM ),轻来源啁啾并且光纤维损失。CD 电的力量曲线被模仿调查提及的上面的因素的效果。理论分析证明在单个隧道的纤维连接, SPM 的效果是足够小的(< 要忽略的 -0.003%) ,当 chirps 和损失必须被考虑时;检测频率乐队的带宽将更好是不到 2 蟺 X 1 GHz;选择中央频率与原来的脉搏的形状有关, 12 GHz 的中央频率在 40 Gbit/s 系统被选择,并且 5GHz 在 10 Gbit/s 系统被选择。一个严峻的系统被建立。试验性的结果与理论分析同意很好。CLC 数字 TN247 Docuement 代码 A 不到接触号码 60377031 和号码 60577013 由中国的国家自然科学资金支持了,在接触号码 2003CB314907 下面的中国的国家基本研究节目
Chromatic Dispersion (CD) monitoring technique based on narrow-band electrical power detecting is one of the cost-effective and simple CD monitoring techniques, while the performance of this method is debased by factors such as bandwidth and center frequency of the detected frequency band, self-phase modulation (SPM) ,light source chirps and optical fiber losses. The CD-electrical power curve is simulated to investigate the effects of the factors above mentioned. Theoretical analysis shows that in single-channeled fiber link,the effect of SPM is small enough (≤0. 003% ) to be ignored,while the chirps and the losses must be taken into account ; the bandwidth of the detected frequency band would better be less than 2π× GHz;the selected central frequency is related to the shape of the original pulse,a central frequency of 12 GHz is chosen in a 4.0 Gbit/s system,and 5GHz is chosen in a 10 Gbit/s system. A testing system is established. The experimental results agree well with the theoretical analysis.