Cost-Effective Magic-T Using Organic-Inorganic Hybrid Materials for Image Compression
| Autor: | Tiago Morgado, Cátia Pinho, C. M. S. Vicente, Berta Neto, Antônio Lúcio Teixeira |
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| Rok vydání: | 2018 |
| Předmět: |
Signal processing
Materials science Maximum power principle business.industry Optical communication Phase (waves) 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences law.invention 010309 optics Wavelength law Beam propagation method 0103 physical sciences Optoelectronics Magic tee Photolithography 0210 nano-technology business |
| Zdroj: | ICTON |
| DOI: | 10.1109/icton.2018.8473995 |
| Popis: | We propose the design of a Magic-T based on a 2×2 Multimode Interference (MMI) coupler with tapered inputs and output waveguides that achieve phase shifts of -π/2 relative to the other port. This device is suitable for organic-inorganic hybrid material implementation. The Magic-T is an important component for application in all-optical signal processing since it can achieve sums and subtractions at its output ports. By using organic- inorganic hybrid materials and specifically di-ureasils, we achieve a cost-effective solution, as the materials benefit from the simplicity of Sol-Gel process and waveguides can be manufactured by single exposure UV photolithography. The simulation results obtained by Beam Propagation Method (BPM) demonstrated good tolerances regarding both propagation wavelength and Magic-T dimensions. For a Magic-T designed for 1555 nm, the maximum power variations observed over the C+L bands are 2.85% and 0.0759% in sum and subtraction ports respectively. The simulated dimension fabrication tolerance indicate power variations below 0.1% for both sum and subtraction ports using typical commercial Chrome amplitude masks. |
| Databáze: | OpenAIRE |
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