【摘要】 利用耦合模理论和数值方法，对高斯型耦合系数线性啁啾光栅分布布喇格反射（ＣＧ－ＤＢＲ）结构光纤激光器的特性进行分析，得到了阈值增益和纵模谱，并与均匀光栅，常耦合系数线性啁啾光栅ＤＢＲ光纤激光器进行了比较。为进一步的设计与制作提供了理论指导。更多还原

【Abstract】 Characteristics of linear CG-DBR fibre lasers with Gaussshaped coupling coefficient are analyzed by means of coupledmode theory and numerical method,and are compared with that of linear CG-DBR fibre lasers with constant coupling coefficient and uniform grating DBR lasers.The threshold gain and the longitudinalmode spectrum are obtained.It provides theoretical guidance for next design and fabrication.更多还原