Abstract
This study aimed at designing a tunable ring resonator based on Micro-Electromechanical Systems (MOEMS) for exploring optical application. Optical Ring Resonator (ORR) represents central resonance wavelength of 1.55 μm that is located on the SiC circular diaphragm with 7 μm radius. Adjustment of resonant wavelength is done through voltage. To achieve this goal, two very thin circular gold layers with 50 nm air gap spacing deposited under the diaphragm. When an input DC voltage applied, Electrostatic - absorbing force formed between two electrodes. Consequentlythe diaphragm is bended and an internal stress formed. This in turn alters the resonator refractive index due to the photo elastic effect and thus shifts its resonance wavelength. COMSOL Multi physics and MATLAB carried out to verify FEA and numerical analysis of the designed structure, respectively. A remarkable agreement between the simulations and analytical results achieved. By applying a variable DC voltage between ONE and 5 V with a step of 1 V, variable wavelengths in 1.55 adjacent are resulted. ORR with tuning wavelength obtained.
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All authors contributed to the study conception and design. Initial investigation, data collection and analysis were performed by Sasan Mohammadian, Farshad Babazadeh and Kambiz Abedi. The first draft of the manuscript was written by Sasan Mohammadian and all authors commented on previous versions of the manuscript. All authors read, discussed, simulated and approved the final manuscript.
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Mohammadian, S., Babazadeh, F. & Abedi, K. Voltage Controlled Tunable MOEMS Optical Ring Resonator. Silicon 15, 2287–2295 (2023). https://doi.org/10.1007/s12633-022-02164-x
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DOI: https://doi.org/10.1007/s12633-022-02164-x