DFB quantum cascade laser arrays

Benjamin G. Lee; Mikhail A. Belkin; Christian Pflügl; Laurent Diehl; Haifei A. Zhang; Ross M. Audet; Jim MacArthur; David P. Bour; Scott W. Corzine; Gloria E. Höfler; Federico Capasso

doi:10.1109/JQE.2009.2013175

DFB quantum cascade laser arrays

Benjamin G. Lee, Mikhail A. Belkin, Christian Pflügl, Laurent Diehl, Haifei A. Zhang, Ross M. Audet, Jim MacArthur, David P. Bour, Scott W. Corzine, Gloria E. Höfler, Federico Capasso

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

114 Scopus citations

Abstract

DFB quantum cascade laser (DFB-QCL) arrays op-erating between 8.7 and 9.4 μm are investigated for their perfor-mance 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 kL 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 perfor-mance 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 demon-stration of potential applications, the DFB-QCL arrays are used to perform infrared absorption spectroscopy with fluids.

Original language	English
Pages (from-to)	554-565
Number of pages	12
Journal	IEEE Journal of Quantum Electronics
Volume	45
Issue number	5
DOIs	https://doi.org/10.1109/JQE.2009.2013175
State	Published - 2009
Externally published	Yes

Keywords

DFB lasers
Infrared spectroscopy
Mid-infrared
Quantum cascade lasers (QCLs)
Semiconductor lasers

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10.1109/JQE.2009.2013175

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title = "DFB quantum cascade laser arrays",

abstract = "DFB quantum cascade laser (DFB-QCL) arrays op-erating between 8.7 and 9.4 μm are investigated for their perfor-mance 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 kL 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 perfor-mance 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 demon-stration of potential applications, the DFB-QCL arrays are used to perform infrared absorption spectroscopy with fluids.",

keywords = "DFB lasers, Infrared spectroscopy, Mid-infrared, Quantum cascade lasers (QCLs), Semiconductor lasers",

author = "Lee, {Benjamin G.} and Belkin, {Mikhail A.} and Christian Pfl{\"u}gl and Laurent Diehl and Zhang, {Haifei A.} and Audet, {Ross M.} and Jim MacArthur and Bour, {David P.} and Corzine, {Scott W.} and H{\"o}fler, {Gloria E.} and Federico Capasso",

year = "2009",

doi = "10.1109/JQE.2009.2013175",

language = "English",

volume = "45",

pages = "554--565",

journal = "IEEE Journal of Quantum Electronics",

issn = "0018-9197",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - DFB quantum cascade laser arrays

AU - Lee, Benjamin G.

AU - Belkin, Mikhail A.

AU - Pflügl, Christian

AU - Diehl, Laurent

AU - Zhang, Haifei A.

AU - Audet, Ross M.

AU - MacArthur, Jim

AU - Bour, David P.

AU - Corzine, Scott W.

AU - Höfler, Gloria E.

AU - Capasso, Federico

PY - 2009

Y1 - 2009

N2 - DFB quantum cascade laser (DFB-QCL) arrays op-erating between 8.7 and 9.4 μm are investigated for their perfor-mance 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 kL 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 perfor-mance 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 demon-stration of potential applications, the DFB-QCL arrays are used to perform infrared absorption spectroscopy with fluids.

AB - DFB quantum cascade laser (DFB-QCL) arrays op-erating between 8.7 and 9.4 μm are investigated for their perfor-mance 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 kL 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 perfor-mance 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 demon-stration of potential applications, the DFB-QCL arrays are used to perform infrared absorption spectroscopy with fluids.

KW - DFB lasers

KW - Infrared spectroscopy

KW - Mid-infrared

KW - Quantum cascade lasers (QCLs)

KW - Semiconductor lasers

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DO - 10.1109/JQE.2009.2013175

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SN - 0018-9197

VL - 45

SP - 554

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JO - IEEE Journal of Quantum Electronics

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DFB quantum cascade laser arrays

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Keywords

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