Modeling of SOI-based MRR by Coupled Mode Theory using Lateral Coupling Configuration

We present the modeling of a first order waveguide-coupled microring resonator (MRR) by coupled mode theory (CMT) using transfer matrix model. The design topology is based on the lateral coupling configuration and single mode propagation which is integrated on a Silicon-on-Insulator (SOI) platform. Performance parameters including Free Spectral Range (FSR) and Quality Factor (Q-factor) are investigated. For verification, we compare these results with the results obtained from the Finite Difference Time Domain (FDTD) commercially available software. We found that both results agree well with each other

Efek Kopling pada Filter Metamaterial Coplanar Waveguide Menggunakan SRRs Persegi Panjang Horizontal

Dalam penelitian ini telah dilakukan pembuatan filter gelombang mikro menggunakan teknologi coplanar waveguide (CPW) yang dibebani dengan struktur metamaterial. Struktur metamaterial tersebut terdiri dari sepasang resonator cincin terbelah (split ring resonators/SRRs) berbentuk persegi panjang yang dicetak di belakang substrat dielektrik. Sementara itu, CPW dicetak dengan tambahan konektor kecil tepat di atas SRRs tersebut. Variasi panjang dan lebar dari SRRs persegi panjang (horizontal dan vertikal) telah dilakukan untuk melihat efek dari kopling antara saluran transmisi CPW ke SRRs. Variasi jarak antara sel-sel resonator (SRRs) juga telah disimulasikan untuk melihat efek dari kopling antara sel-sel yang berdekatan. Analisis dengan simulasi elektromagnetik dan data dari eksperimen telah menunjukkan bahwa kinerja bandwidth filter yang berbeda telah ditemukan dengan merubah struktur SRRs maupun dengan merubah jarak antara sel-sel resonator (SRRs). Telah ditemukan pula bahwa kontribusi yang signifikan dari kopling antara CPW ke SRRs menunjukkan bahwa SRRs persegi panjang horizontal dapat dimanfaatkan untuk meningkatkan performa filter. Hasil penelitian ini dapat digunakan untuk menganalisis konfigurasi geometris SRRs yang memberikan optimalisasi praktis paling baik untuk pembuatan filter metamaterial CPW

Design and optimization of coupled microring resonators (MRRs) in silicon-on-insulator

The design of microring resonators (MRRs) for serial configuration, integrated in the lateral scheme was presented and simulated using 3D electromagnetic simulator based on finite integration technique. The device model is embedded on the high index contrast (HIC) structure of silicon-on-insulator with monomodal cavity for TE-mode polarizations. From the proposed model, we varied the MRRs order, waveguides separation distance and ring radius, in order to evaluate the influence of those parameters on the device performance in terms of loss, free spectral range (FSR) and quality factor (Q-factor). Upon varying the gap distances, it was found that the highest Q-factor value of the proposed design was 1275 obtained at gap separation of 150 nm for ring radius of 6 μm, while the largest FSR was 24 nm. The trade-offs between device compactness, optical bandwidth and Q-factor are also presented

Design and Optimization of Coupled Microring Resonators (MRRs) in Silicon-on-Insulator

The design of microring resonators (MRRs) for serial configuration, integrated in the lateral scheme was presented and simulated using 3D electromagnetic simulator based on finite integration technique. The device model is embedded on the high index contrast (HIC) structure of silicon-on-insulator with monomodal cavity for TE-mode polarizations. From the proposed model, we varied the MRRs order, waveguides separation distance and ring radius, in order to evaluate the influence of those parameters on the device performance in terms of loss, free spectral range (FSR) and quality factor (Q-factor). Upon varying the gap distances, it was found that the highest Q-factor value of the proposed design was 1275 obtained at gap separation of 150 nm for ring radius of 6 μm, while the largest FSR was 24 nm. The trade-offs between device compactness, optical bandwidth and Q-factor are also presented