Quantum cascade lasers shape up for trace-gas sensing

Claire F. Gmachl, F. Capasso, R. Colombelli, R. Paiella, D. L. Sivco, A. Y. Cho

Research output: Contribution to specialist publicationArticle

4 Scopus citations

Abstract

The use of quantum cascade (QC) lasers was investigated for its application in trace-gas sensing. Single-mode operation was achieved through integration of a Bragg grating into the laser waveguide which produces distributed feedback (DFB) lasers. The results show that the characteristic total tuning ranges per current sweep ranges between 0.3% to 0.5% of the emission wavelength which makes it suitable for scanning isolated absorption features of a trace gas.

Original languageEnglish (US)
Pages65-70
Number of pages6
Volume37
No9
Specialist publicationLaser Focus World
StatePublished - Sep 1 2001

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Marketing
  • Electrical and Electronic Engineering

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  • Cite this

    Gmachl, C. F., Capasso, F., Colombelli, R., Paiella, R., Sivco, D. L., & Cho, A. Y. (2001). Quantum cascade lasers shape up for trace-gas sensing. Laser Focus World, 37(9), 65-70.