Optimisation of tapered fiber for optimal coupling with P.I.N. Photodiode

摘要

The modelisation of a tapered single-mode fiber with step index profile is described. The employed methods are the bpm method and the coupled-mode theory for L.P modes in a conical fiber. The aim of this work is to focus the highest light density inside the intrinsic layer of a p.i.n. photodiode. Some tapers are simulated, like pulling and melting fibers or etching fibers, and are compared with experimental results.