Design channel add drop filter based on photonic crystal cavity resonator on GaAs substrate
| Autor: | Khemiri Kheareddine |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Coupling
Materials science business.industry Finite-difference time-domain method Physics::Optics 02 engineering and technology Sawtooth wave Resonator Wavelength 020210 optoelectronics & photonics Optics Q factor 0202 electrical engineering electronic engineering information engineering business Optical filter Photonic crystal |
| Zdroj: | IINTEC |
| DOI: | 10.1109/iintec.2017.8325921 |
| Popis: | In this paper, we propose a new design of drop filter using photonic crystal cavity resonator on GAas. The proposed structure is composed of two photonic crystal waveguides and a photonic crystal resonant cavity with inner rods, scatterer rods and coupling, while the Central coupling rod had an elliptic geometry with a minimum radius and a maximum radius and some inclination. A special wave guide is introduce, it has a Sawtooth forms. Calculations of band structure and normalized transmission spectra are done by finite difference time domain method (FDTD). According to the results, we note that 95% dropping efficiency with quality factor of 258 is achievable at wavelength λ=1.578487 μm. The effect of adding a fifth port make us the efficacy 61% for the fourth with a Q factor of 79 for the 1.596mm wavelength and efficiency at the fifth port 78% and a Q factor of 138 for a 1.528mm wavelength. |
| Databáze: | OpenAIRE |
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