Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Open-path spectroscopic methane detection using a broadband monolithic distributed feedback-quantum cascade laser array

Not Accessible

Your library or personal account may give you access

Abstract

Methane is a powerful greenhouse gas that has both natural and anthropogenic sources. The ability to measure methane using an integrated path length approach such as an open/long-path length sensor would be beneficial in several environments for examining anthropogenic and natural sources, including tundra landscapes, rivers, lakes, landfills, estuaries, fracking sites, pipelines, and agricultural sites. Here a broadband monolithic distributed feedback-quantum cascade laser array was utilized as the source for an open-path methane sensor. Two telescopes were utilized for the launch (laser source) and receiver (detector) in a bistatic configuration for methane sensing across a 50 m path length. Direct-absorption spectroscopy was utilized with intrapulse tuning. Ambient methane levels were detectable, and an instrument precision of 70 ppb with 100 s averaging and 90 ppb with 10 s averaging was achieved. The sensor system was designed to work “off the grid” and utilizes batteries that are rechargeable with solar panels and wind turbines.

© 2017 Optical Society of America

Full Article  |  PDF Article
More Like This
Pressure-dependent sensitivity of a single-pass methane detection system using a continuous-wave distributed feedback laser at 3270  nm

Seyed Ghasem Razavipour, James A. Gupta, Graeme Sabiston, Nicaulas Sabourin, Andrew Bezinger, Jean Lapointe, and Daniel Poitras
Appl. Opt. 58(25) 6906-6911 (2019)

Open-path multi-species remote sensing with a broadband optical parametric oscillator

Oguzhan Kara, Frazer Sweeney, Marius Rutkauskas, C. Farrell, C. G. Leburn, and Derryck T. Reid
Opt. Express 27(15) 21358-21366 (2019)

Simultaneous atmospheric nitrous oxide, methane and water vapor detection with a single continuous wave quantum cascade laser

Yingchun Cao, Nancy P. Sanchez, Wenzhe Jiang, Robert J. Griffin, Feng Xie, Lawrence C. Hughes, Chung-en Zah, and Frank K. Tittel
Opt. Express 23(3) 2121-2132 (2015)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved