A Novel 1×2 Thermo-Optic Multimode Interference Switch Structure Based on Photodefinable Benzocyclobutene （BCB 4024-40） Polymer on Silica  

作　　者：M.H.Ibrahim Mee-Koy Chin N.M.Kassim A.B.Mohammad 

机构地区：[1]Photonics Research Croup, Universiti Teknologi Malaysia, Johor, Malaysia [2]Photonics Research Center, Nanyang Technological University, Singapore

出　　处：《Chinese Physics Letters》2006年第10期2796-2798,共3页中国物理快报（英文版）

摘　　要：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 -28 dB and low switching power relatively to the structural upper cladding thickness.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 -28 dB and low switching power relatively to the structural upper cladding thickness.

分 类 号：TN2[电子电信—物理电子学] O43[机械工程—光学工程]