Title :
Fibre-optic polarisers and polarising couplers
Author :
Johnstone, Walter ; Stewart, George ; Hart, T.
Author_Institution :
Strathyclyde Univ., Glasgow
fDate :
7/7/1988 12:00:00 AM
Abstract :
The dispersion equation describing the planar waveguiding properties of a thin metal film sandwiched between two dielectrics was used to predict the conditions for polarisation selective coupling from an optical fibre to surface plasmon polaritons. The conditions predicted by the analysis and those found by experiment were in close agreement and the results led to the realisation of a high-quality polariser and polarising coupler demonstrating extinction ratios in excess of 50 dB (at 1·3 micron) and 30 dB per arm (at 1·3 micron) respectively
Keywords :
light polarisation; optical couplers; optical fibres; optical polarisers; optical waveguide components; optical waveguide theory; dispersion equation; fibre optic polarisers; metal film/dielectric sandwich; optical fibre; planar waveguiding properties; polarisation selective coupling; polarising couplers; surface plasmon polaritons; thin metal film;
Journal_Title :
Electronics Letters
