Scanned-wavelength diode laser sensors for harsh environments

Jay B. Jeffries; Scott T. Sanders; Xin Zhou; Lin Ma; Daniel Walter Mattison; Ronald K. Hanson

doi:10.1117/12.452076

23 September 2002 Scanned-wavelength diode laser sensors for harsh environments

Jay B. Jeffries, Scott T. Sanders, Xin Zhou, Lin Ma, Daniel Walter Mattison, Ronald K. Hanson

Proceedings Volume 4817, Diode Lasers and Applications in Atmospheric Sensing; (2002) https://doi.org/10.1117/12.452076
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Diode laser absorption offers the possibility of high-speed, robust, and rugged sensors for a wide variety of practical applications. Pressure broadening complicates absorption measurements of gas temperature and species concentrations in high-pressure, high-temperature practical environments. More agile wavelength scanning can enable measurements of temperature and species concentrations in flames and engines as demonstrated by example measurements using wavelength scanning of a single DFB in laboratory flames or a vertical cavity surface emitting laser (VCSEL) in a pulse detonation engine environment. Although the blending of multiple transitions by pressure broadening complicates the atmospheric pressure spectrum of C₂H₄ fuel, a scanned wavelength strategy enables quantitative measurement of fuel/oxidizer stoichiometry. Wavelength-agile scanning techniques enable high-speed measurements in these harsh environments.

Citation Download Citation

Jay B. Jeffries, Scott T. Sanders, Xin Zhou, Lin Ma, Daniel Walter Mattison, and Ronald K. Hanson "Scanned-wavelength diode laser sensors for harsh environments", Proc. SPIE 4817, Diode Lasers and Applications in Atmospheric Sensing, (23 September 2002); https://doi.org/10.1117/12.452076

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