A modular architecture for multi-channel external cavity quantum cascade laser-based chemical sensors: A systems approach

Matthew S. Taubman, Tanya L. Myers, Bruce E. Bernacki, Robert D. Stahl, Bret D. Cannon, John T. Schiffern, Mark C. Phillips

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations


A multi-channel laser-based chemical sensor platform is presented, in which a modular architecture allows the exchange of complete sensor channels without disruption to overall operation. Each sensor channel contains custom optical and electronics packages, which can be selected to access laser wavelengths, interaction path lengths and modulation techniques optimal for a given application or mission. Although intended primarily to accommodate mid-infrared external cavity quantum cascade lasers and astigmatic Herriott cells, channels using visible or near infrared lasers or other gas cell architectures can also be used, making this a truly versatile platform. Analog and digital resources have been carefully chosen to facilitate small footprint, rapid spectral scanning, low-noise signal recovery, fail-safe autonomous operation, and in-situ chemometric data analysis, storage and transmission. Results from the demonstration of a two-channel version of this platform are also presented.

Original languageEnglish (US)
Title of host publicationQuantum Sensing and Nanophotonic Devices IX
StatePublished - 2012
Externally publishedYes
EventQuantum Sensing and Nanophotonic Devices IX - San Francisco, CA, United States
Duration: Jan 22 2012Jan 26 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceQuantum Sensing and Nanophotonic Devices IX
Country/TerritoryUnited States
CitySan Francisco, CA


  • Infrared spectroscopy
  • astigmatic Herriott cell
  • modular systems
  • quantum cascade laser
  • tunable laser

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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