期刊
JOURNAL OF COMPUTATIONAL ELECTRONICS
卷 18, 期 2, 页码 628-639出版社
SPRINGER
DOI: 10.1007/s10825-019-01329-z
关键词
All-optical XOR gate; All-optical AND gate; Quantum-dot semiconductor optical amplifier; Turbo-switch; Mach-Zehnder interferometer
资金
- Chinese Academy of Sciences President's International Fellowship Initiative [2019FYT0002]
- Talented Young Scientist Program
- China Science and Technology Exchange Center of Ministry of Science and Technology of China
The turbo-switch (TS) architecture conceived for speeding up the response of conventional semiconductor optical amplifiers (SOAs) is combined for the first time with the exceptional ultrafast capability of quantum-dot (QD) SOAs. The possibility of exploiting this combination in the Mach-Zehnder interferometer (MZI) for implementing fundamental all-optical (AO) XOR and AND logic gates run at 1Tb/s is numerically investigated, assessed, and verified. The simulation results demonstrate the superiority of the QDSOA-based TS-MZI scheme over its QDSOA-based MZI counterpart, as quantified by the improved quality factor, which can be achieved under more favorable operating conditions. The outcomes of the conducted theoretical treatment can help execute AO signal processing tasks with enhanced performance while keeping pace with the perpetual increase of single-channel data rates in an efficient and affordable manner.
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