Wavelength beam combining of quantum cascade laser arrays for remote sensing
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 o...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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The International Society for Optical Engineering
2010
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| Online Access: | http://hdl.handle.net/1721.1/52730 |
| _version_ | 1811077471944048640 |
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| author | Sanchez-Rubio, Antonio Goyal, Anish K. Kansky, Jan E. Capasso, Federico Belkin, M. A. Diehl, Laurent Pflügl, Christian Lee, Benjamin G. |
| author2 | Lincoln Laboratory |
| author_facet | Lincoln Laboratory Sanchez-Rubio, Antonio Goyal, Anish K. Kansky, Jan E. Capasso, Federico Belkin, M. A. Diehl, Laurent Pflügl, Christian Lee, Benjamin G. |
| author_sort | Sanchez-Rubio, Antonio |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T10:43:34Z |
| format | Article |
| id | mit-1721.1/52730 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:43:34Z |
| publishDate | 2010 |
| publisher | The International Society for Optical Engineering |
| record_format | dspace |
| spelling | mit-1721.1/527302022-09-27T14:32:04Z Wavelength beam combining of quantum cascade laser arrays for remote sensing Sanchez-Rubio, Antonio Goyal, Anish K. Kansky, Jan E. Capasso, Federico Belkin, M. A. Diehl, Laurent Pflügl, Christian Lee, Benjamin G. Lincoln Laboratory Kansky, Jan E. Sanchez-Rubio, Antonio Goyal, Anish K. Kansky, Jan E. 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. Defence Advanced Research Projects Agency. Optofluidics Center (grant number HR00-04-1-0032) United States Department of the Air Force (Air Force Contract No. FA872-05-C-0002) 2010-03-18T20:00:22Z 2010-03-18T20:00:22Z 2009-08 Article http://purl.org/eprint/type/JournalArticle 0277-786X http://hdl.handle.net/1721.1/52730 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 en_US http://dx.doi.org/10.1117/12.826497 Proceedings of SPIE--the International Society for Optical Engineering; v.7460 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. application/pdf The International Society for Optical Engineering SPIE |
| spellingShingle | Sanchez-Rubio, Antonio Goyal, Anish K. Kansky, Jan E. Capasso, Federico Belkin, M. A. Diehl, Laurent Pflügl, Christian Lee, Benjamin G. Wavelength beam combining of quantum cascade laser arrays for remote sensing |
| title | Wavelength beam combining of quantum cascade laser arrays for remote sensing |
| title_full | Wavelength beam combining of quantum cascade laser arrays for remote sensing |
| title_fullStr | Wavelength beam combining of quantum cascade laser arrays for remote sensing |
| title_full_unstemmed | Wavelength beam combining of quantum cascade laser arrays for remote sensing |
| title_short | Wavelength beam combining of quantum cascade laser arrays for remote sensing |
| title_sort | wavelength beam combining of quantum cascade laser arrays for remote sensing |
| url | http://hdl.handle.net/1721.1/52730 |
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