A 1 × 2 optical switch using one multimode interference region |
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| Authors: | Rui Yin Soojin Chua |
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| Institution: | Institute of Material Research and Engineering, 3 Research Link, Singapore 117602, Singapore |
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| Abstract: | A 1 × 2 optical switch using only one multimode interference (MMI) region is designed and demonstrated in GaAs/AlGaAs. This design makes a single MMI region works as MMI coupler using paired interference at “off” state and symmetric interference at “on” state. By injecting a current of 110 mA, the measured on/off ratio and crosstalk are 23 dB and 33 dB, respectively in the demonstrated device with GaAs/GaAlAs. |
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| Keywords: | Optical switches Multimode interference Optical planar waveguide couplers |
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