Wavelength beam combining of quantum cascade laser arrays for remote sensing

Benjamin G. Lee, Jan Kansky, Anish K. Goyal, Christian Pflügl, Laurent Diehl, Mikhail A. Belkin, Antonio Sanchez, Federico Capasso

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

3 Zitate (Scopus)

Abstract

Wavelength beam combining was used to co-propagate beams from 28 elements in a linear array of distributedfeedback quantum cascade lasers (DFB-QCLs). The overlap of the beams in the far-field is improved using wavelength beam combining; the beam-quality product of the array, defined as the product of near-field spot size and far-field divergence for the entire array, was improved by a factor of 21. We measured the absorption spectrum of isopropanol at a distance of 6 m from the laser arrays, demonstrating the efficacy of wavelength beam combined DFB-QCL arrays for remote sensing.

OriginalspracheEnglisch
TitelLidar Remote Sensing for Environmental Monitoring X
DOIs
PublikationsstatusVeröffentlicht - 2009
Extern publiziertJa
VeranstaltungLidar Remote Sensing for Environmental Monitoring X - San Diego, CA, USA/Vereinigte Staaten
Dauer: 3 Aug. 20093 Aug. 2009

Publikationsreihe

NameProceedings of SPIE - The International Society for Optical Engineering
Band7460
ISSN (Print)0277-786X

Konferenz

KonferenzLidar Remote Sensing for Environmental Monitoring X
Land/GebietUSA/Vereinigte Staaten
OrtSan Diego, CA
Zeitraum3/08/093/08/09

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