【摘要】 提出了用级联方向耦合器组成的双端口全光纤反射器的设想，给出了基本结构形式，推导了光场量和强度的反射与传输系数，并对其特性进行了分析和比较更多还原

【Abstract】 In theis paper,dual port all fiber reflectors using two stage directional couplers were proposed,the reflectivity and transmissivity of both optical field and intensity were derived,respectively,and the characteristics were analyzed.更多还原