Single-Mode Tunable Quantum Cascade Lasers in the Spectral Range of the CO2 Laser at λ = 9.5-10.5 μm

Rüdeger Köhler; Claire Gmachl; Federico Capasso; Alessandro Tredicucci; Deborah L. Sivco; Alfred Y. Cho

doi:10.1109/68.841257

Single-Mode Tunable Quantum Cascade Lasers in the Spectral Range of the CO₂ Laser at λ = 9.5-10.5 μm

Rüdeger Köhler, Claire Gmachl, Federico Capasso, Alessandro Tredicucci, Deborah L. Sivco, Alfred Y. Cho

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

16 Scopus citations

Abstract

Widely tunable, single-mode quantum cascade distributed feedback (QC-DFB) lasers based on a complex coupling scheme and operating in the wavelength range of the CO₂ laser (λ ≈ 9.5-10.5 μm) are reported. Dynamic single-mode emission up to high current levels is obtained. The continuous single-mode tuning range is 150 nm, while the tuning range of the equivalent Fabry-Perot laser is ∼400 nm. By homogeneously reducing all layer thicknesses by 10%, the wavelength coverage of a single QC-laser design can be extended to cover one entire regular band of the fundamental CO₂ laser spectrum.

Original language	English (US)
Pages (from-to)	474-476
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	12
Issue number	5
DOIs	https://doi.org/10.1109/68.841257
State	Published - May 2000
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Keywords

Distributed feedback lasers
Mid-infrared
Single-mode lasers
Tunable lasers
Unipolar semiconductor laser

Access to Document

10.1109/68.841257

Cite this

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title = "Single-Mode Tunable Quantum Cascade Lasers in the Spectral Range of the CO2 Laser at λ = 9.5-10.5 μm",

abstract = "Widely tunable, single-mode quantum cascade distributed feedback (QC-DFB) lasers based on a complex coupling scheme and operating in the wavelength range of the CO2 laser (λ ≈ 9.5-10.5 μm) are reported. Dynamic single-mode emission up to high current levels is obtained. The continuous single-mode tuning range is 150 nm, while the tuning range of the equivalent Fabry-Perot laser is ∼400 nm. By homogeneously reducing all layer thicknesses by 10%, the wavelength coverage of a single QC-laser design can be extended to cover one entire regular band of the fundamental CO2 laser spectrum.",

keywords = "Distributed feedback lasers, Mid-infrared, Single-mode lasers, Tunable lasers, Unipolar semiconductor laser",

author = "R{\"u}deger K{\"o}hler and Claire Gmachl and Federico Capasso and Alessandro Tredicucci and Sivco, {Deborah L.} and Cho, {Alfred Y.}",

note = "Funding Information: Manuscript received October 14, 1999; revised January 17, 2000. This work was supported in part by DARPA/U.S. Army Research Office under Contract DAAG55-98-C-0050 and in part by Studienstiftung des Deutschen Volkes, Germany. R. K{\"o}hler is with the Technische Universit{\"a}t Berlin, Berlin, Germany. C. Gmachl, F. Capasso, A. Tredicucci, D. L. Sivco, and A. Y. Cho are with Bell Laboratories, Lucent Technologies, Murray Hill, NJ 07974 USA (e-mail: [email protected]; [email protected]). Publisher Item Identifier S 1041-1135(00)03616-8.",

year = "2000",

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doi = "10.1109/68.841257",

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T1 - Single-Mode Tunable Quantum Cascade Lasers in the Spectral Range of the CO2 Laser at λ = 9.5-10.5 μm

AU - Köhler, Rüdeger

AU - Gmachl, Claire

AU - Capasso, Federico

AU - Tredicucci, Alessandro

AU - Sivco, Deborah L.

AU - Cho, Alfred Y.

N1 - Funding Information: Manuscript received October 14, 1999; revised January 17, 2000. This work was supported in part by DARPA/U.S. Army Research Office under Contract DAAG55-98-C-0050 and in part by Studienstiftung des Deutschen Volkes, Germany. R. Köhler is with the Technische Universität Berlin, Berlin, Germany. C. Gmachl, F. Capasso, A. Tredicucci, D. L. Sivco, and A. Y. Cho are with Bell Laboratories, Lucent Technologies, Murray Hill, NJ 07974 USA (e-mail: [email protected]; [email protected]). Publisher Item Identifier S 1041-1135(00)03616-8.

PY - 2000/5

Y1 - 2000/5

N2 - Widely tunable, single-mode quantum cascade distributed feedback (QC-DFB) lasers based on a complex coupling scheme and operating in the wavelength range of the CO2 laser (λ ≈ 9.5-10.5 μm) are reported. Dynamic single-mode emission up to high current levels is obtained. The continuous single-mode tuning range is 150 nm, while the tuning range of the equivalent Fabry-Perot laser is ∼400 nm. By homogeneously reducing all layer thicknesses by 10%, the wavelength coverage of a single QC-laser design can be extended to cover one entire regular band of the fundamental CO2 laser spectrum.

AB - Widely tunable, single-mode quantum cascade distributed feedback (QC-DFB) lasers based on a complex coupling scheme and operating in the wavelength range of the CO2 laser (λ ≈ 9.5-10.5 μm) are reported. Dynamic single-mode emission up to high current levels is obtained. The continuous single-mode tuning range is 150 nm, while the tuning range of the equivalent Fabry-Perot laser is ∼400 nm. By homogeneously reducing all layer thicknesses by 10%, the wavelength coverage of a single QC-laser design can be extended to cover one entire regular band of the fundamental CO2 laser spectrum.

KW - Distributed feedback lasers

KW - Mid-infrared

KW - Single-mode lasers

KW - Tunable lasers

KW - Unipolar semiconductor laser

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