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Title:
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Wavelength beam combining of quantum cascade laser arrays for remote sensing |
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Author:
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Lee, Benjamin G.; Kansky, Jan; Goyal, Anish K.; Pflügl, Christian; Diehl, Laurent; Belkin, Mikhail A.; Sanchez, Antonio; Capasso, Federico |
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Department:
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Lincoln Laboratory |
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Publisher:
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The International Society for Optical Engineering |
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Issue Date:
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2009-08 |
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Abstract:
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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. |
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URI:
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http://hdl.handle.net/1721.1/52730
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ISSN:
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0277-786X |
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Citation:
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Lee, Benjamin G. et al. “Wavelength beam combining of quantum cascade laser arrays for remote sensing.” Lidar Remote Sensing for Environmental Monitoring X. Ed. Upendra N. Singh. San Diego, CA, USA: SPIE, 2009. 746004-9. © 2009 SPIE--The International Society for Optical Engineering |
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Version:
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Final published version |
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Terms of Use:
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. |
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Published as:
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http://dx.doi.org/10.1117/12.826497
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Journal:
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Proceedings of SPIE--the International Society for Optical Engineering; v.7460 |
