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Selective excitation of fibre-modes using surface plasmons
S.Barcelos, M.N.Zervas, and P.St.J.Russell
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 LP11 fiber mode. The LP11 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.
IEEE Photonics Technology Letters (1995) Vol.7(9) pp.1051-1053
Copyright University of Southampton 2006