Rashed, A.M.;
Selviah, D.R.;
(2004)
Modelling of the effects of thermal gradients on optical propagation in polymer multimode tapered waveguides in optical backplanes.
Photonics North 2004: Software and Modelling in Optics
, 5579
(1 & 2)
pp. 359-366.
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Abstract
Finite difference beam propagation modelling (FD-BPM) calculates the effect of thermal gradients in an optical backplane on the optical field propagation in a polymer multimode linearly tapered waveguide. Compared to straight waveguides, tapered entrances offer improved power coupling for a wide range of optical source lateral offset misalignments. However, surface temperature gradients of 0.5 degrees C/um across the taper were found to degrade this benefit due to the thermo-optic effect of the polymer. Higher surface temperature gradients improve power coupling in two discrete ranges of lateral source offset but the original tolerance to a wide range of source offsets is not recovered.
| Type: | Article |
|---|---|
| Title: | Modelling of the effects of thermal gradients on optical propagation in polymer multimode tapered waveguides in optical backplanes |
| ISBN: | 0277-786X |
| Open access status: | An open access version is available from UCL Discovery |
| Language: | English |
| Keywords: | Polymer multimode tapered waveguide, optical backplane, thermal gradient, FD-BPM, source misalignment |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/2963 |
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