J4 ›› 2017, Vol. 34 ›› Issue (1): 72-75.

• 非线性光学 • 上一篇    下一篇

用于CO2排放源监测的近红外光参量振荡系统

李 震1,王晓宾2,3,4,胡顺星4   

  1. 1 海军潜艇学院舱室环境与防化教研室, 山东 青岛266071; 2 中国电波传播研究所电波环境特性及模化技术重点实验室, 山东 青岛 266107; 3 中国科技大学研究生院,安徽 合肥 230022; 4 中国科学院安徽光学精密机械研究所大气光学中心, 安徽 合肥 230031
  • 收稿日期:2016-09-09 修回日期:2016-09-22 出版日期:2017-01-28 发布日期:2017-01-28
  • 通讯作者: 李 震(1961-),教授,主要研究方向为气体成分测量装备和技术。 E-mail:LiZhen181@126.com
  • 基金资助:
    国家自然科学基金(41575032, 41127901)

Near infrared optical parametric oscillation system for monitoring of CO2 emission sources

LI Zhen1,WANG Xiaobin2,3,4,HU Shunxing4   

  1. 1 Section of Cabin Environment and Chemical Defense, NAVY Submarine Academy, Qingdao 266071; 2 National Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao 266107, China;(正确的英文名) 3 Graduate School of University of Science and Technology of China, Hefei 230022, China; 4 Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • Received:2016-09-09 Revised:2016-09-22 Published:2017-01-28 Online:2017-01-28

摘要: 基于CO2的近红外吸收光谱特征,提出了一种可用于CO2排放源监测的光参量振荡(OPO)和放大(OPA)系统,该系统由输入OPO的激光双种子源、OPO和OPA、带窄线宽激光种子源脉冲Nd:YAG基频激光器、高精度和频率稳定的双通道波长计等组成,可交替输出1.572 μm的双波长激光束。系统经初步调试后,泵浦脉冲能量为326 mJ时获得近25%的转换效率,脉冲能量近80 mJ,满足地基差分吸收激光雷达测量对流层CO2浓度廓线的需要。

关键词: 激光技术;光参量振荡;近红外双波长;差分吸收激光雷达;CO2

Abstract: Based on the near infrared absorption spectroscopy characteristics of CO2, an optical parametric oscillation (OPO) and amplification (OPA) system is proposed for the monitoring of CO2 emission sources. The system is composed of laser dual-seed source injected into OPO, OPO and OPA, narrow bandwidth laser seeded and pulsed Nd:YAG laser transmitting fundamental frequency, a dual-channel wavelength meter with high accuracy and frequency stability etc, which can output alternately dual-wavelength laser beams at 1.572 μm. After the system is debugged preliminarily, the conversion efficiency near 25% is obtained when the pump pulse energy is 326 mJ, and pulse energy is near 80 mJ, which can meet the need of ground-based differential absorption lidar measurements of CO2 concentration profiles in troposphere.

Key words: laser techniques;optical parametric oscillation;near infrared dual-wavelength;differential absorption lidar;carbon dioxide