Crosstalk improvement of a thermo-optic polymer waveguide MZI-MMI switch
A 2 × 2 MZI-MMI switch based on thermo-optic effect with a ridge in the silicon substrate was proposed and the performance of switch was simulated. The main purpose behind this change in substrate layer is to localize the heating at a heated arm single mode waveguide and limit the increasing temper...
| Main Authors: | , , , |
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| Format: | Article |
| Published: |
Elsevier
2008
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| Subjects: | |
| Online Access: | http://eprints.utm.my/7661/ |
| Summary: | A 2 × 2 MZI-MMI switch based on thermo-optic effect with a ridge in the silicon substrate was proposed and the performance of switch was simulated. The main purpose behind this change in substrate layer is to localize the heating at a heated arm single mode waveguide and limit the increasing temperature at a second one. The switch performance of the device should be improved, compare to the usual one. Using finite difference beam propagation method (FD-BPM) and thermal computing simulation based on finite element method (FEM), the results clearly indicate that the MZI-MMI switch can satisfy -31 dB crosstalk at two states. |
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