In this paper, the present situation, application and development of coupler, especially the technology and theory of fused biconical taper wide band couplers are analyzed concisely.

• 本文对熔融拉锥型耦合器的现状、应用和发展，尤其是熔融拉锥型宽带光纤耦合器的原理及制造工艺进行了详细的论述。