Logic Gates Based on Interaction of Counterpropagating Light in Microresonators
| Autor: | Niall Moroney, Leonardo Del Bino, Pascal Del'Haye, Shuangyou Zhang, Andreas Ø. Svela, Jonathan M. Silver, Michael T. M. Woodley, George N. Ghalanos |
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| Rok vydání: | 2020 |
| Předmět: |
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
FOS: Physical sciences Physics::Optics Universal logic Applied Physics (physics.app-ph) 02 engineering and technology 01 natural sciences 010309 optics Resonator 020210 optoelectronics & photonics 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electronics Electronic circuit Physics business.industry Nonlinear optics Physics - Applied Physics 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Logic gate Optoelectronics Photonics Whispering-gallery wave 0210 nano-technology business Physics - Optics Optics (physics.optics) |
| Zdroj: | Journal of Lightwave Technology |
| ISSN: | 1558-2213 0733-8724 |
| Popis: | Optical logic has the potential to replace electronics with photonic circuits in applications for which optic-to-electronic conversion is impractical and for integrated all-optical circuits. Nonlinear optics in whispering gallery mode resonators provides low power, scalable methods to achieve optical logic. We demonstrate, for the first time, an all-optical, universal logic gate using counterpropagating light in which all signals have the same operating optical frequency. Such a device would make possible the routing of optical signals without the need for conversion into the electronic domain, thus reducing latency. The operating principle of the device is based on the Kerr interaction between counter-propagating beams in a whispering gallery mode resonator which induces a splitting between the resonance frequencies for the two propagating directions. Our gate uses a fused silica microrod resonator with a \textit{Q}-factor of $\SI{2e8}{}$. This method of optical logic gives a practical solution to the on-chip routing of light. |
| Databáze: | OpenAIRE |
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