New All-Solid-State KTA-Based DIAL for Tropospheric Methane Monitoring

Author:

Gasmi Cherifi Taieb

Abstract

We present an Optical Parametric Oscillator (OPO)-based differential absorption lidar (DIAL) that operates in the mid-infrared (3.0-4.5 um). Tunability of the OPO is achieved by the use of Potassium Titanyle Arsenate (KTiOAsO4), or KTA crystal. The Dial measurements of methane are in good agreement with reported values and also exhibits diurnal fluctuations in concentration levels during atmospheric monitoring.

Publisher

EDP Sciences

Reference8 articles.

1. Vaicikauskasa V., Kuprionisb Z., Kaucikasa M., Svedasa V., Kabelkaa V., “Mid-Infrared All-solid State DIAL for Remote Sensing of Hazardous Chemical Agents”, Laser Radar Technology and Applications XI, Proc. of SPIE, 6214, (2006).

2. High energy and high efficiency 3.4 μ m extracavity KTA optical parametric oscillator

3. Lee S.W., McNeil J., Zenker T., Chyba T.H., “Methane Concentration Measurements with a Mid-infrared Optical Parametric Oscillator-based Differential Absorption Lidar System”, Proc. Lasers and Electro-Optics, CLEO/Pacific Rim '99. Seoul, S-Korea, (1999).

4. Lee S.W., McNeil J., Zenker T., Chyba T.H., “A Mid-IR OPO Based Lidar System for DIAL Measurements of Tropospheric Methane Concentration”, Proc. Conference on Lasers and Electro-Optics, CLEO '99, Baltimore, MD, USA, (1999).

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