Phase Recovery Acceleration in Quantum-Dot Semiconductor Optical Amplifiers

被引：27

作者：

Abedi, Kambiz ^{[1
]}

Taleb, Hussein ^{[1
]}

机构：

[1] Shahid Beheshti Univ, Fac Elect & Comp Engn, Dept Elect Engn, Tehran 1983963113, Iran

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2012年 / 30卷 / 12期

关键词：

All-optical signal processing (AOSP); electrical pumping (EP); optical pumping (OP); quantum-dot (QD); semiconductor optical amplifiers (SOAs); STATIC GAIN SATURATION; DYNAMICS; MODULATION; MODEL;

D O I：

10.1109/JLT.2012.2190710

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, the acceleration of phase recovery in quantum-dot semiconductor optical amplifiers (QD-SOAs) is investigated by employing optical pumping (OP) scheme. For this purpose, the state space theory has been used to derive a dynamic model for the QD-SOA. The derived nonlinear state space model is employed to simulate the gain and phase responses of the device. For the first time, we show that OP can realize a shorter phase recovery time in comparison with electrical pumping (EP) scheme under equal pumping powers. We found that under OP, the contribution of slow phase recovery component induced by the slow carrier dynamics of the carrier reservoir is drastically reduced, and consequently, a fast phase response becomes feasible. Also, we found that under EP, the gain is recovered within a shorter time compared to OP scheme.

引用

页码：1924 / 1930

页数：7

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