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Article

Increasing the Quality Factor (Q) of 1D Photonic Crystal Cavity with an End Loop-Mirror

Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
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Photonics 2021, 8(4), 99; https://doi.org/10.3390/photonics8040099
Received: 7 February 2021 / Revised: 14 March 2021 / Accepted: 18 March 2021 / Published: 31 March 2021
(This article belongs to the Section Quantum Photonics and Technologies)
Increasing the quality factor (Q-factor) of an optical resonator device has been a research focus utilized in various applications. Higher Q-factor means light is confined in a longer time which will produce a sharper peak and higher transmission. In this paper, we introduce a novel technique to further increase the Q-factor of a one-dimensional photonic crystal (1D PhC) cavity device by using an end loop-mirror (ELM). The technique utilizes and recycles the transmitted light from the conventional 1D PhC cavity design. The design has been proven to work by using the 2.5D FDTD simulation with Lumerical FDTD and MODE software. By using the ELM technique, the Q-factor of a 1D PhC design has been shown to increase up to 79.53% from the initial Q value without the ELM. The experimental result shows that the device is measurable by adding a Y-branch component to the one-port structure and able to get a high Q result. This novel design technique can be combined with any high Q-factor and very high Q-factor designs to increase more Q-factor values of photonic crystal cavity devices or any other suitable optical resonator devices. View Full-Text
Keywords: photonic crystal cavity; high Q-factor; loss reduction; SOI photonic crystal cavity; high Q-factor; loss reduction; SOI
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MDPI and ACS Style

Haron, M.H.; Yeop Majlis, B.; Zain, A.R.M. Increasing the Quality Factor (Q) of 1D Photonic Crystal Cavity with an End Loop-Mirror. Photonics 2021, 8, 99. https://doi.org/10.3390/photonics8040099

AMA Style

Haron MH, Yeop Majlis B, Zain ARM. Increasing the Quality Factor (Q) of 1D Photonic Crystal Cavity with an End Loop-Mirror. Photonics. 2021; 8(4):99. https://doi.org/10.3390/photonics8040099

Chicago/Turabian Style

Haron, Mohamad H., Burhanuddin Yeop Majlis, and Ahmad R.M. Zain. 2021. "Increasing the Quality Factor (Q) of 1D Photonic Crystal Cavity with an End Loop-Mirror" Photonics 8, no. 4: 99. https://doi.org/10.3390/photonics8040099

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