Title :
Selective excitation of fiber-modes using surface plasmons
Author :
Barcelos, S. ; Zervas, M.N. ; Russell, P.St.J.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
Abstract :
Experimental and theoretical results are presented on a surface plasmon fiber device that provides selective excitation of individual modes in a dual-mode optical fiber. Using prism coupling to probe this device, good modal discrimination was obtained experimentally for the LP/sub 1/1 fiber mode. The LP/sub 1/1 modal discrimination, however, was found to be inherently limited by the field distribution characteristics of the dual-mode fiber. Applications are to fixed and tunable mode tap or couplers.<>
Keywords :
optical fibre couplers; optical fibres; optical prisms; plasmons; surface plasmons; tuning; LP/sub 1/1 fiber mode; LP/sub 1/1 modal discrimination; dual-mode optical fiber; fiber-modes; fibre optical couplers; field distribution characteristics; good modal discrimination; prism coupling; selective excitation; surface plasmon fiber device; surface plasmons; tunable mode tap; Dielectric thin films; Optical fiber couplers; Optical fiber devices; Optical fiber polarization; Optical fibers; Optical films; Optical surface waves; Plasmons; Propagation constant; Silver;
Journal_Title :
Photonics Technology Letters, IEEE
