CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12279 > Article
Paper
26 July 2022 A TDLAS gas sensor using tunable DFB laser array
Zijun Liu, Siyuan Chen, Xiangfei Chen, Feng Wang, Tao Fang, Hua Tong
Author Affiliations +
Proceedings Volume 12279, 2021 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 122790L (2022) https://doi.org/10.1117/12.2616199
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only
Abstract
We propose and experimentally demonstrated a Tunable-Diode-Laser-Absorption-Spectroscopy (TDLAS) system using low-cost tunable DFB laser array. We implement Reconstruction-Equivalent-Chirp (REC) technology for a low-cost DFB laser array which is suitable for TDLAS system. Meanwhile, monolithic integration of multi-wavelength laser array is achieved, covering multiple absorption spectral lines. A gas sensing system for multi-peak detection is built. We chose methane as the interested gas in the experiment. The sensing data for absorption peaks of methane, including 1642.9nm, 1645.5nm, 1650.9nm and 1653.7nm are obtained. The methane concentration is measured as low as 500ppm.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Zijun Liu, Siyuan Chen, Xiangfei Chen, Feng Wang, Tao Fang, and Hua Tong "A TDLAS gas sensor using tunable DFB laser array", Proc. SPIE 12279, 2021 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 122790L (26 July 2022); https://doi.org/10.1117/12.2616199
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 8 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Absorption
Methane
Tunable lasers
Laser applications
Gas sensors
Semiconductor lasers
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top