熔锥型全波耦合器

Fused biconical taper all-wave coupler

从耦合模方程出发 ,分析了全光纤非对称熔融拉锥型耦合器的带宽特性 ,提出和论证了全波 (O +E +S +C +Lband)耦合器的制作方案 ,并且在工艺上实现了全波耦合 ,其带宽达到了 390nm(12 6 0— 16 5 0 ) ,分束比 1∶99;附加损耗0 1dB .

This paper, on the basis of coupled-mode equations, analyzes the bandwidth characteristic of asymmetric fused biconical taper ( FBT) coupler, and proposes and proves a solution of all-wave coupler ( 0 + E + S + C + 1, hand). We also succeed in making all-wave couplers with a bandwidth of 390nm, while the excess loss is only 0.1 dB and the coupling ratio is I : 99.