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A Novel 1×2 Thermo-Optic Multimode Interference Switch Structure Based on Photodefinable Benzocyclobutene (BCB 4024-40) Polymer on Silica |
| M. H. Ibrahim1;Mee-Koy Chin2;N. M. Kassim1;A. B. Mohammad |
| 1Photonics Research Group, Universiti Teknologi Malaysia, Johor, Malaysia
2Photonics Research Center, Nanyang Technological University, Singapore |
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| Cite this article: |
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M. H. Ibrahim, Mee-Koy Chin, N. M. Kassim et al 2006 Chin. Phys. Lett. 23 2796-2798 |
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Abstract A novel 1×2 multimode interference photonics switch structure based on thermal controlling effect is proposed. A ridge waveguide of photosensitive polymer, benzocyclobutene (BCB 4024-40) on silica clad is used as a design structure. A temperature changes as a result of electrode heating are analysed by employing a two-dimensional finite difference thermal model considering both conduction and convection mechanisms. The switching characteristics due to changes in effective index are analysed by the two-dimensional finite difference beam propagation method with transparent boundary condition. The proposed structure works well with low crosstalk level of -28dB and low switching power relatively to the structural upper cladding thickness.
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| Keywords:
42.82.Bq
42.70.Jk
44.05.+e
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Published: 01 October 2006
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| PACS: |
42.82.Bq
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(Design and performance testing of integrated-optical systems)
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42.70.Jk
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(Polymers and organics)
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44.05.+e
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(Analytical and numerical techniques)
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