用于远程气体探测的双波长中红外激光器(特邀)  

Dual-Wavelength Mid-Infrared Laser for Long-Range Gas Detection(Invited)

作　　者：吕新杰[1,2,4] 杨彬 姚红权 汪小涵 吴悔 卜令兵[5] 祝世宁[1,2,3,4] Li Xinjie;Yang Bin;Yao Hongquan;Wang Xiaohan;Wu Hui;Bu Lingbing;Zhu Shining(National Laboratory of Solid State Microstructures,Nanjing University,Nanjing 210093,Jiangsu,China;College of Engineering and Applied Sciences,Nanjing University,Nanjing 210023,Jiangsu,China;School of Physics,Nanjing University,Nanjing 210093,Jiangsu,China;Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,Jiangsu,China;School of Atmospheric Physics,Nanjing University of Information Science&Technology,Nanjing 210044,Jiangsu,China)

机构地区：[1]南京大学固体微结构物理国家重点实验室,江苏南京210093 [2]南京大学现代工程与应用科学学院,江苏南京210023 [3]南京大学物理学院,江苏南京210093 [4]南京大学人工微结构科学与技术协同创新中心,江苏南京210093 [5]南京信息工程大学大气物理学院,江苏南京210044

出　　处：《激光与光电子学进展》2024年第1期153-160,共8页Laser & Optoelectronics Progress

基　　金：国家重点研发计划(SQ2022YFF0700421);国家自然科学基金(12192251);博士后创新人才计划(BX201700117)。

摘　　要：为了实现远程气体探测,基于由超晶格材料构成的光参量振荡器,研制了一台双波长输出的中红外激光器。该光参量振荡器通过种子注入的方式,实现了纳秒级窄线宽的中红外脉冲激光输出,重复频率为500 Hz,单脉冲能量超过1 mJ,并能够对准2.6~4.0μm波长范围内的NO、NO_(2)和SO_(2)的吸收峰。通过气体动态排放实验,在远程气体探测实验中对该激光器进行了验证。In order to achieve the purpose of long-range gas detection,a mid-infrared laser with dual wavelength output is developed;this system is based on an optical parametric oscillator composed of superlattice materials.The optical parametric oscillator realizes a mid-infrared pulsed laser output of nanosecond order with a 500 Hz repetition rate and a single pulse energy that exceeds 1 mJ through seed injection,and effectively aligns the NO,NO2,and SO2 absorption peaks in the 2.6-4.0μm range.The laser performance is validated in a remote gas detection experiment based on a gas dynamic emission experiment.

关 键 词：光参量 窄线宽 光谱 中红外激光器 

分 类 号：TN216[电子电信—物理电子学]