Beam combining of quantum cascade laser arrays

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

doi:10.1364/OE.17.016216

Beam combining of quantum cascade laser arrays

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

Research output: Contribution to journal › Article › peer-review

92 Scopus citations

Abstract

Wavelength beam combining was used to co-propagate beams from 28 elements in an array of distributed-feedback quantum cascade lasers (DFB-QCLs). 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 by using wavelength beam combining. To demonstrate the applicability of wavelength beam combined DFB-QCL arrays for remote sensing, we obtained the absorption spectrum of isopropanol at a distance of 6 m from the laser array.

Original language	English
Pages (from-to)	16216-16224
Number of pages	9
Journal	Optics Express
Volume	17
Issue number	18
DOIs	https://doi.org/10.1364/OE.17.016216
State	Published - 31 Aug 2009
Externally published	Yes

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title = "Beam combining of quantum cascade laser arrays",

abstract = "Wavelength beam combining was used to co-propagate beams from 28 elements in an array of distributed-feedback quantum cascade lasers (DFB-QCLs). 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 by using wavelength beam combining. To demonstrate the applicability of wavelength beam combined DFB-QCL arrays for remote sensing, we obtained the absorption spectrum of isopropanol at a distance of 6 m from the laser array.",

author = "Lee, {Benjamin G.} and Jan Kansky and Goyal, {Anish K.} and Christian Pfl{\"u}gl and Laurent Diehl and Belkin, {Mikhail A.} and Antonio Sanchez and Federico Capasso",

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AU - Lee, Benjamin G.

AU - Kansky, Jan

AU - Goyal, Anish K.

AU - Pflügl, Christian

AU - Diehl, Laurent

AU - Belkin, Mikhail A.

AU - Sanchez, Antonio

AU - Capasso, Federico

PY - 2009/8/31

Y1 - 2009/8/31

N2 - Wavelength beam combining was used to co-propagate beams from 28 elements in an array of distributed-feedback quantum cascade lasers (DFB-QCLs). 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 by using wavelength beam combining. To demonstrate the applicability of wavelength beam combined DFB-QCL arrays for remote sensing, we obtained the absorption spectrum of isopropanol at a distance of 6 m from the laser array.

AB - Wavelength beam combining was used to co-propagate beams from 28 elements in an array of distributed-feedback quantum cascade lasers (DFB-QCLs). 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 by using wavelength beam combining. To demonstrate the applicability of wavelength beam combined DFB-QCL arrays for remote sensing, we obtained the absorption spectrum of isopropanol at a distance of 6 m from the laser array.

UR - http://www.scopus.com/inward/record.url?scp=69949106027&partnerID=8YFLogxK

U2 - 10.1364/OE.17.016216

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VL - 17

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JO - Optics Express

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ER -

Beam combining of quantum cascade laser arrays

Abstract

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