Room temperature continuous-wave operation of a dual-wavelength quantum cascade laser

IF 3.3 2区物理与天体物理 Q2 OPTICS

Chinese Optics Letters Pub Date : 2023-01-01 DOI:10.3788/col202321.011408

Y. Guan, Ruixuan Sun, N. Zhuo, Xiyu Lu, Jinchuan Zhang, S. Zhai, Jun-qi Liu, Shuman Liu, Lijun Wang, Feng-qi Liu

引用次数: 0

Abstract

We report on the design and fabrication of a dual-wavelength switchable quantum cascade laser (QCL) by optimizing the design of a homogeneous active region and combining superposed distributed feedback gratings. Coaxial, single-mode emissions at two different wavelengths were achieved only through adjusting the bias voltage. Room temperature con-tinuous-wave operation with output powers of above 30 mW and 75 mW was realized for single-mode emission at 7.61 μ m and 7.06 μ m, respectively. The simplified fabrication process and easy wavelength control of our designed dual-wavelength QCL make it very attractive for developing miniature multi-species gas sensing systems.

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双波长量子级联激光器的室温连续波工作

本文报道了一种双波长可切换量子级联激光器(QCL)的设计和制造，该激光器采用均匀有源区优化设计和叠加分布反馈光栅相结合的方法。仅通过调整偏置电压就可以实现两种不同波长的同轴单模发射。在7.61 μ m和7.06 μ m单模发射下，实现了输出功率在30 mW和75 mW以上的室温连续波工作。所设计的双波长QCL具有制作工艺简单、波长易于控制等优点，对开发微型多组分气体传感系统具有很大的吸引力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chinese Optics Letters 物理-光学

CiteScore

5.60

自引率

20.00%

发文量

180

审稿时长

2.3 months

期刊介绍： Chinese Optics Letters (COL) is an international journal aimed at the rapid dissemination of latest, important discoveries and inventions in all branches of optical science and technology. It is considered to be one of the most important journals in optics in China. It is collected by The Optical Society (OSA) Publishing Digital Library and also indexed by Science Citation Index (SCI), Engineering Index (EI), etc. COL is distinguished by its short review period (~30 days) and publication period (~100 days). With its debut in January 2003, COL is published monthly by Chinese Laser Press, and distributed by OSA outside of Chinese Mainland.