Title :
Optical transmission of a “Continuous fiber” component comprising a multilayer structure with the thin metal film
Author :
Kutsaenko, V. ; Laretskii, E. ; Johnstone, W.
Author_Institution :
Inst. of Radio Eng. & Electron., Acad. of Sci., Moscow, Russia
fDate :
10/1/1996 12:00:00 AM
Abstract :
The evanescent field coupling between a single-mode fiber and a multilayer planar waveguide which includes a thin metal film has been investigated theoretically and experimentally. The shift and spreading phenomena for the optical transmission resonances (dips) of the TM-mode depending on the superstrate refractive index have been observed and explained. The role of losses in the resonance weakening and spreading phenomena is clarified. Possibilities for tuning the TM-mode resonance independently of the TE-resonance, and even to have coincidence of the transmission dips for both TE- and TM-modes are discussed
Keywords :
coupled mode analysis; light transmission; metallic thin films; optical couplers; optical fibre couplers; optical fibre losses; optical films; optical losses; optical planar waveguides; refractive index; tuning; TE-modes; TE-resonance; TM-mode; TM-mode resonance; TM-modes; continuous fiber component; evanescent field coupling; losses; multilayer planar waveguide; multilayer structure; optical transmission; optical transmission resonances; resonance weakening; shift phenomena; single-mode fiber; spreading phenomena; superstrate refractive index; thin metal film; transmission dip; tuning; Couplings; Nonhomogeneous media; Optical devices; Optical films; Optical planar waveguides; Optical refraction; Optical surface waves; Optical variables control; Optical waveguides; Resonance;
Journal_Title :
Lightwave Technology, Journal of
