DFB Quantum Cascade Laser Arrays

DSpace/Manakin Repository

DFB Quantum Cascade Laser Arrays

Citable link to this page

. . . . . .

Title: DFB Quantum Cascade Laser Arrays
Author: Lee, Benjamin G.; Belkin, Mikhail A.; Pflügl, Christian; Diehl, Laurent; Zhang, Haifei; Audet, Ross M.; MacArthur, Jim B.; Bour, David P.; Corzine, Scott W.; Höfler, Gloria E.; Capasso, Federico

Note: Order does not necessarily reflect citation order of authors.

Citation: Lee, Benjamin G., Mikhail A. Belkin, Christian Pflügl, Laurent Diehl, Haifei A. Zhang, Ross M. Audet, Jim MacArthur, David P. Bour, Scott W. Corzine, Gloria E. Hofler, Federico Capasso. 2009. DFB quantum cascade laser arrays. IEEE Journal of Quantum Electronics 45(5): 554-565.
Full Text & Related Files:
Abstract: DFB quantum cascade laser (DFB-QCL) arrays operating between 8.7 and 9.4 mum are investigated for their performance characteristics-single-mode selection of the DFB grating, and variability in threshold, slope efficiency, and output power of different lasers in the array. Single-mode selection refers to the ability to choose a desired mode/frequency of laser emission with a DFB grating. We apply a theoretical framework developed for general DFB gratings to analyze DFB-QCL arrays. We calculate how the performance characteristics of DFB-QCLs are affected by the coupling strength kappaL of the grating, and the relative position of the mirror facets at the ends of the laser cavity with respect to the grating. We discuss how single-mode selection can be improved by design. Several DFB-QCL arrays are fabricated and their performance examined. We achieve desired improvements in single-mode selection, and we observe the predicted variability in the threshold, slope efficiency, and output power of the DFB-QCLs. As a demonstration of potential applications, the DFB-QCL arrays are used to perform infrared absorption spectroscopy with fluids.
Published Version: doi:10.1109/JQE.2009.2013175
Other Sources: http://hutrough.harvard.edu/capasso/publications/Lee_IEEE_JQE_45_554_2009.pdf
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:3445981

Show full Dublin Core record

This item appears in the following Collection(s)

  • FAS Scholarly Articles [6902]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

Search DASH


Advanced Search
 
 

Submitters