Design of all-optical D flip-flop using photonic crystal waveguides for optical computing and networking
| Autor: | Sandip Swarnakar, Santosh Kumar, Dalai Gowri Sankar Rao, Venkatrao Palacharla |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Digital electronics
Materials science Silicon business.industry Physics::Optics Optical computing chemistry.chemical_element 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Wavelength Optics chemistry law 0103 physical sciences Hardware_INTEGRATEDCIRCUITS Optical networking Electrical and Electronic Engineering business Engineering (miscellaneous) Refractive index Flip-flop Hardware_LOGICDESIGN Photonic crystal |
| Zdroj: | Applied Optics. 59:7139 |
| ISSN: | 2155-3165 1559-128X |
| DOI: | 10.1364/ao.400223 |
| Popis: | The performance of an ultra-compact all-optical D flip-flop using photonic crystal waveguides is numerically analyzed and examined by optimized parameters such as refractive index and silicon rod radius. In the field of optical networking and computing, flip-flops are used to reduce the complexity of digital circuits. The phenomenon of optical interference effect is used to implement a D flip-flop at a wavelength of 1550 nm. This structure is designed using T-shaped waveguides without using non-linear material. The proposed design is small, has low insertion losses of 0.087 dB when operated at low power level, and provides high contrast ratio of 25 dB and transmission ratio of more than 96%. |
| Databáze: | OpenAIRE |
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