Open AccessFused biconical taper all-wave coupler
Author(s) -
Ruifeng Zhang,
Chunfeng Ge,
Shuhui Wang,
Hu Zhi-Yong,
Shichen Li
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.390
Subject(s) - bandwidth (computing) , optics , physics , computer science , telecommunications
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 (O+E+S+C+L band).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 1∶99