Low-power compact 2×2 thermooptic silica-on-silicon waveguideswitch with fast response |
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| Authors: | Lai Q. Hunziker W. Melchior H. |
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| Affiliation: | Inst. for Quantum Electron., Fed. Inst. of Technol., Zurich; |
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| Abstract: | 5-mm-long and 50-μm-wide thermooptic waveguide 2×2 Mach-Zehnder interferometer (MZI) switches with multimode interference (MMI) couplers have been realized in silica-on-silicon. The use of diffused square waveguides with a separating trench results in low heating power of 110 mW for π phase shift and short rise and fall times of 150 and 180 μs, respectively |
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