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嵌入式双种源主振荡器功率放大器量子级联激光器

Xiyu Lu, Jing Tang, Shan Niu

|January 29, 2025

概括

紧型双种源量子级联激光器 (QCL) 已被证明可以发射多波长的辐射. 这项技术可以在微型传感系统中精确检测多种气体.

科学领域:

量子级联激光器 (QCL) 是一种
中红外光子学中红外光子学
半导体设备工程半导体设备工程

背景情况:

开发紧的多波长激光器对于先进的传感应用至关重要.
现有的激光技术往往面临着尺寸,可调性和多波长能力的限制.

研究的目的:

为了实验证明双种源主振荡器功率放大器 (MOPA) 量子级联激光器 (QCLs).
为了实现紧的,室温的,多波长的激光发射,并改善功率平衡.
为了使发射模式能够微调,以实现精确的光谱控制.

主要方法:

使用双种子源和中央功率放大器的三明治配置制造QCL.
通过在两个种子源之间切换,调节辐射频谱.
输出功率和波长通过电流调整调整的表征.

主要成果:

室温,连续波运行与双波长输出在7.35微米 (46mW) 和7.38微米 (30mW) 的演示.
双波长之间的功率差异显著改善.
通过 -0.0131 cm−1mA−1 和 -0.0122 cm−1mA−1.1 的系数实现了排放模式的微调.

结论:

开发的双种源MOPA QCLs为多波长激光生成提供了紧而高效的解决方案.
微调能力提高了光谱精度,使这些激光器适合先进的应用.
这些激光器对于小型化芯片上传感系统的开发具有重要意义,用于精确的多气体检测.

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