Optical Noise of Dual-State Lasing Quantum Dot Lasers

Zhou Yueguang; Duan Jianan; Grillot FredericWang Cheng

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Optical Noise of Dual-State Lasing Quantum Dot Lasers

机译：双态激光量子点激光器的光学噪声

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This paper theoretically investigates the optical noise characteristics of the simultaneous ground-state (GS) and excited-state (ES) lasing quantum dot lasers. The optical noise dynamics of both states are analysed through coupling the Langevin noise sources into a set of coupled rate equations. It is pointed out that the ES emission significantly changes the evolution scenario of the relative intensity noise, the frequency noise (spectral linewidth), and the linewidth broadening factor of the GS emission, as a function of the bias current. In the vicinity of the ES lasing threshold, the relative intensity noise and the frequency noise of the GS emission is lower than those of ES emission. However, the linewidth broadening factor of the GS emission is larger than the latter.

机译：本文从理论上研究了同步基态（GS）和激发态（ES）激光量子点激光器的光噪声特性。通过将Langevin噪声源耦合到一组耦合速率方程中来分析两种状态的光噪声动力学。指出，ES发射显著改变了GS发射的相对强度噪声、频率噪声（频谱线宽）和线宽展宽因子的演化情景，作为偏置电流的函数。在ES激光阈值附近，GS发射的相对强度噪声和频率噪声低于ES发射。然而，GS发射的线宽展宽系数大于后者。

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来源
《IEEE Journal of Quantum Electronics: A Publication of the IEEE Quantum Electronics and Applications Society》 |2020年第6期|2001207-1-2001207-7|共7页
作者
Zhou Yueguang; Duan Jianan; Grillot FredericWang Cheng;
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作者单位

ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China;

Telecom Paris, Inst Polytech Paris, LTCI, F-91120 Palaiseau, France;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类基础理论;
关键词
Semiconductor lasers; quantum dots; relative intensity noise; frequency noise; spectral linewidth; linewidth broadening factor;

机译：半导体激光器;量子点;相对强度噪声;频率噪声;光谱线宽;线宽展宽系数;

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Optical Noise of Dual-State Lasing Quantum Dot Lasers

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