Littman结构的平移透镜外腔半导体激光器
发布时间：2018-11-16 16:34
【摘要】：首次提出并实现了一种利用笼式共轴系统搭建的Littman结构平移透镜外腔半导体激光器。通过微调节架驱动准直透镜平移从而改变光栅表面的激光入射角,可以实现约8.5 nm的连续波长调谐,准直透镜平移1μm波长改变约0.02 nm,实验测量值与理论计算值能够很好地吻合。通过压电陶瓷驱动准直透镜平移,研究了Littman结构平移透镜外腔半导体激光器的跳模特性并定性分析了发生跳模的基本原理。此外,该外腔系统的出射激光具有优异的单模特性和稳定性,室温下工作电流为300 m A时单模输出功率超过18 m W。
[Abstract]:A Littman structure translational lens external cavity semiconductor laser using cage coaxial system is proposed and realized for the first time. The laser incident angle on the grating surface can be changed by the translation of the collimation lens driven by the micro-adjusting frame. The continuous wavelength tuning of about 8.5 nm can be achieved, and the 1 渭 m wavelength of the collimation lens can be changed about 0.02 nm,. The experimental data are in good agreement with the theoretical values. In this paper, the mode hopping of a Littman structure translational lens external cavity semiconductor laser is studied by the translation of a collimation lens driven by piezoelectric ceramics, and the basic principle of mode hopping is analyzed qualitatively. In addition, the output laser of the external cavity system has excellent single mode characteristics and stability. The single mode output power exceeds 18 MW when the operating current is 300 Ma at room temperature.
【作者单位】： 中科院上海微系统与信息技术研究所信息功能材料国家重点实验室;中国科学院大学;
【基金】：973项目(2013CB632800) 国家自然科学基金(61176065)
【分类号】：TN248.4
本文编号：2336032
[Abstract]:A Littman structure translational lens external cavity semiconductor laser using cage coaxial system is proposed and realized for the first time. The laser incident angle on the grating surface can be changed by the translation of the collimation lens driven by the micro-adjusting frame. The continuous wavelength tuning of about 8.5 nm can be achieved, and the 1 渭 m wavelength of the collimation lens can be changed about 0.02 nm,. The experimental data are in good agreement with the theoretical values. In this paper, the mode hopping of a Littman structure translational lens external cavity semiconductor laser is studied by the translation of a collimation lens driven by piezoelectric ceramics, and the basic principle of mode hopping is analyzed qualitatively. In addition, the output laser of the external cavity system has excellent single mode characteristics and stability. The single mode output power exceeds 18 MW when the operating current is 300 Ma at room temperature.
【作者单位】： 中科院上海微系统与信息技术研究所信息功能材料国家重点实验室;中国科学院大学;
【基金】：973项目(2013CB632800) 国家自然科学基金(61176065)
【分类号】：TN248.4
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