Title :
Fibred optical variable attenuator using liquid crystal dispersed in polymer
Author :
Ramanitra, H. ; Chanclou, P. ; Vinouze, B. ; Dupont, L.
Author_Institution :
Dept. of Opt., ENST Bretagne, Lannion, France
fDate :
9/12/2002 12:00:00 AM
Abstract :
A variable optical attenuator using polymer dispersed liquid crystal is presented. The fabrication process is described and the optical attenuation and polarisation dependent loss (PDL) characteristics in relation to fabrication conditions are presented. The device achieves 12.7 dB of attenuation and 0.7 dB of insertion loss at 1.55 μm with a PDL < 1.8 dB
Keywords :
liquid crystal devices; optical fibre fabrication; optical fibre losses; optical fibre polarisation; polymer dispersed liquid crystals; waveguide attenuators; 0.7 dB; 1.55 micron; UV curing conditions; UV irradiation; dynamical attenuation; electro-optical characteristics; fabrication process; fibre optical variable attenuator; insertion loss; optical attenuation; polarisation dependent loss characteristics; polymer dispersed liquid crystal; wavelength division multiplexed networks;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020770
