Title :
Low loss fibre optic polarisers using differential coupling to dielectric waveguide overlays
Author :
Creaney, S. ; Johnstone, Walter
Author_Institution :
Div. of Optoelectron., Strathclyde Univ., Glasgow
fDate :
2/17/1994 12:00:00 AM
Abstract :
An investigation of the polarisation properties of fibre to planar waveguide coupling devices is reported. The results show that, for thin asymmetrically bound planar waveguide overlays, waveguide birefringence alone is sufficient for the realisation of polarisers. For a vacuum deposited zinc sulphide overlay a TE/TM extinction ratio of 35 dB was measured with a loss of 0.17 dB for the transmitted TE mode
Keywords :
birefringence; light polarisation; optical couplers; optical fibres; optical losses; optical polarisers; optical waveguides; 0.17 dB; TE/TM extinction ratio; ZnS; dielectric waveguide overlays; differential coupling; fibre to planar waveguide coupling devices; low loss fibre optic polarisers; polarisation properties; thin asymmetrically bound overlays; transmitted TE mode; vacuum deposited ZnS overlay; waveguide birefringence;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940194
