Monolithic microprocessor-controlled tuning and triggering system of TEA CO2 laser for differential absorption lidar

Yanchen Qu; Deming Ren; Xiaoyong Hu; Fengmei M. Liu; Jinzhe Huang; Lili Zhang; Wenmei Song

doi:10.1117/12.466149

21 March 2003 Monolithic microprocessor-controlled tuning and triggering system of TEA CO₂ laser for differential absorption lidar

Yanchen Qu, Deming Ren, Xiaoyong Hu, Fengmei M. Liu, Jinzhe Huang, Lili Zhang, Wenmei Song

Author Affiliations +

Proceedings Volume 4893, Lidar Remote Sensing for Industry and Environment Monitoring III; (2003) https://doi.org/10.1117/12.466149
Event: Third International Asia-Pacific Environmental Remote Sensing Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2002, Hangzhou, China

Abstract

In the present work, directed toward using differential absorption lidar (DIAL) for measuring concentrations of pollutant gases, a monolithic microprocessor-controlled tuning and triggering system for rapidly tuning a TEA C02 laser is reported. It is shown that it is possible to utilize a high frequency stepping motor and a diffraction grating to rapidly select wavelength over rotational transitions in the 9.2-10.8 jtm region of the laser spectrum. The tuning is performed by applying appropriate signals to the stepping motor, which is coupled to the grating via a precision gear box. The microprocessor controls motion of the motor which rotates the correct angle for a given wavelength together with the grating. Many of pollutants have strong absorption lines in the 9-11 im region, therefore the wavelength tunable transversely excited atmospheric-pressure (TEA) CO2 laser becomes an ideal optical source for DIAL.

Citation Download Citation

Yanchen Qu, Deming Ren, Xiaoyong Hu, Fengmei M. Liu, Jinzhe Huang, Lili Zhang, and Wenmei Song "Monolithic microprocessor-controlled tuning and triggering system of TEA CO₂ laser for differential absorption lidar", Proc. SPIE 4893, Lidar Remote Sensing for Industry and Environment Monitoring III, (21 March 2003); https://doi.org/10.1117/12.466149

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available