High performance metal-clad fibre-optic polarisers
- 19 July 1990
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 26 (15) , 1113-1115
- https://doi.org/10.1049/el:19900720
Abstract
The principle of polarisation-selective resonant coupling between a guided optical mode and a metal surface plasmon wave through the evanescent field of the fibre was used to develop fibre-optic polarisers with extinction ratios in excess of 70 dB and losses less than 0.5 dB at 850 nm wavelength. The influence of fibre and thin-film parameters on the polariser performance was investigated both theoretically and experimentally. An improved measurement method for the polariser extinction ratio is demonstrated.Keywords
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