激光器的调制度和激励电平计算式的推导和应用  

Reasoning and Application of Formulas for Laser Optical Modulation Depth and Bestir Level

作　　者：林挺逵 贾正武 

机构地区：[1]台州市广电总台路桥区广电中心,浙江台州318050 [2]南阳市中波转播台,河南南阳473000

出　　处：《中国有线电视》2008年第7期683-686,共4页China Digital Cable TV

摘　　要：推导出光调制度与光发射机输入电平的关系算式、激励电平与激光器偏置电流和单频道调制度的关系算式,分析系统频道数变化对调制度恒定型光发射机激励电平的影响规律,同时分析常见光发射机标称输入电平的标示方式、结构特点和具体应用调试方法。The paper carried out the reasoning of the formula which implies the relationship between optical modulation depth and the input level of a optical transmitter and the formula implied between single channel modulation depth and bestir level ＆ bias current.And it also analyzed the rule that how the number of channels affects the bestir level of a modulation depth constant optical transmitter.Then this paper discussed the structure features,the application methods,tuning skills and denoting conventions of the rated input level on a common laser transmitter.

关 键 词：光调制度 激励电平 输入电平 偏置电流 

分 类 号：TN248[电子电信—物理电子学]