Optimal Non-uniform Current Injection for Quantum-Dot Semiconductor Optical Amplifiers
Publish place: 19th Iranian Conference on Electric Engineering
Publish Year: 1390
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICEE19_423
تاریخ نمایه سازی: 14 مرداد 1391
Abstract:
The influence of non-uniform current injection on the linear operation of a quantum dot semiconductor optical amplifier (QD-SOA) is investigated and optimal current injection profiles are determined. For this purpose, we have utilized some functions to generate various non-uniform current injection profiles. These profiles have been considered in our numerical calculations, where the rate equation model is employed to construct different characteristics of the QD-SOA. We have found that the gain, as well as the crosstalk of QDSOA is closely related to the variance of the carrier density along the cavity. Simulation results show that non-uniform current injection can be used as a technique for gain enhancement as well as crosstalk suppression
Keywords:
quantum-dot semiconductor optical amplifier (QD-SOA) , Non-uniform current injection , Rate equations
Authors
Hussein Taleb
Department of Electrical Engineering, Islamic Azad University, Najafabad Branch
Kambiz Abedi
Department of Electrical Engineering, Faculty of Electrical and Computer Engineering, Shahid Beheshti University
Saeed Golmohammadi
Nanophotonics Group, School of Engineering-Emerging Technologies, University of Tabriz
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