用于宽光谱带宽发射器的双峰尺寸量子点。

Bimodal-sized quantum dots for broad spectral bandwidth emitter.

作者信息

Zhou Yinli, Zhang Jian, Ning Yongqiang, Zeng Yugang, Zhang Jianwei, Zhang Xing, Qin Li, Wang Lijun

出版信息

Opt Express. 2015 Dec 14;23(25):32230-7. doi: 10.1364/OE.23.032230.

DOI:10.1364/OE.23.032230

Abstract

In this work, a high-power and broadband superluminescent diode (SLD) is achieved utilizing bimodal-sized quantum dots (QDs) as active materials. The device exhibits a 3 dB bandwidth of 178.8 nm with output power of 1.3 mW under continuous-wave (CW) conditions. Preliminary discussion attributes the spectra behavior of the device to carrier transfer between small dot ensemble and large dot ensemble. Our result provides a new possibility to further broadening the spectral bandwidth and improving the CW output power of QD-SLDs.

摘要

在这项工作中，通过使用双峰尺寸的量子点（QD）作为活性材料，实现了一种高功率宽带超发光二极管（SLD）。该器件在连续波（CW）条件下表现出178.8 nm的3 dB带宽，输出功率为1.3 mW。初步讨论将该器件的光谱行为归因于小量子点集合体与大量子点集合体之间的载流子转移。我们的结果为进一步拓宽量子点超发光二极管的光谱带宽和提高连续波输出功率提供了新的可能性。