Wavelength measurement of tunable TEA CO2 laser

Yanchen Qu; Deming Ren; Xiaoyong Hu; Fengmei Liu; Lili Zhang; Chunyu Chen

doi:10.1117/12.577289

10 January 2005 Wavelength measurement of tunable TEA CO₂ laser

Yanchen Qu, Deming Ren, Xiaoyong Hu, Fengmei Liu, Lili Zhang, Chunyu Chen

Proceedings Volume 5640, Infrared Components and Their Applications; (2005) https://doi.org/10.1117/12.577289
Event: Photonics Asia, 2004, Beijing, China

Abstract

Due to their interesting physical and chemical parameters, tunable transversely excited atmospheric-pressure(TEA) CO₂ lasers are widely utilized in scientific and industrial applications. The CO₂ differential absorption lidar (DIAL) is an effective tool for remote measurement of pollutant gaseous concentration of the atmosphere over large areas. Many pollutant gases have strong absorption lines within the spectral range of CO₂ laser wavelength tuning. In addition, the radiation of CO₂ laser is well distributed in the atmosphere, coinciding with the "transparency window" of the atmosphere. Therefore the wavelength tunable TEA CO2 laser is an ideal optical source for DIAL. Most existing instruments for measuring the laser wavelength are only suitable for the measurement of continuous wave and stable frequency output. With the attempt of measuring the wavelength of pulsed TEA CO₂ laser, an experimental setup is established which consists of two main portions, namely auto-scanning grating monochromator as the color dispersion system and Boxcar integrator. In the experiment of tuning TEA CO₂ laser, the wavelength of CO₂ laser is observed and measured by means of integrating method. The accuracy of measurement in the mid-infrared region attains 1nm.

Citation Download Citation

Yanchen Qu, Deming Ren, Xiaoyong Hu, Fengmei Liu, Lili Zhang, and Chunyu Chen "Wavelength measurement of tunable TEA CO₂ laser", Proc. SPIE 5640, Infrared Components and Their Applications, (10 January 2005); https://doi.org/10.1117/12.577289

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