Complex-coupled quantum cascade distributed-feedback laser

Claire Gmachl; Jérôme Faist; James N. Baillargeon; Federico Capasso; Carlo Sirtori; Deborah L. Sivco; S. N.George Chu; Alfred Y. Cho

doi:10.1109/68.605510

Complex-coupled quantum cascade distributed-feedback laser

Claire Gmachl, Jérôme Faist, James N. Baillargeon, Federico Capasso, Carlo Sirtori, Deborah L. Sivco, S. N.George Chu, Alfred Y. Cho

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

86 Scopus citations

Abstract

Quantum-cascade distributed-feedback lasers (QC-DFB) with a grating close to the active region are reported. Feedback is provided by the grating in a refractive index-dominated coupling scheme. Reliable single-mode emission at λ _cm ≈ 5.4 μm with a side-mode suppression ratio (SMSR) ≈30 dB is observed. The laser is continuously tunable over 40 nm with a coefficient of Δλ/ΔT ≈ 0.37 nm/K in the temperature range from 200 K to 300 K. Comparison with Fabry-Perot QC lasers shows an overall improved performance of QC-DFB lasers.

Original language	English (US)
Pages (from-to)	1090-1092
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	9
Issue number	8
DOIs	https://doi.org/10.1109/68.605510
State	Published - Aug 1997
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 laser
Mid-infrared
Unipolar semiconductor laser

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10.1109/68.605510

Cite this

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title = "Complex-coupled quantum cascade distributed-feedback laser",

abstract = "Quantum-cascade distributed-feedback lasers (QC-DFB) with a grating close to the active region are reported. Feedback is provided by the grating in a refractive index-dominated coupling scheme. Reliable single-mode emission at λ cm ≈ 5.4 μm with a side-mode suppression ratio (SMSR) ≈30 dB is observed. The laser is continuously tunable over 40 nm with a coefficient of Δλ/ΔT ≈ 0.37 nm/K in the temperature range from 200 K to 300 K. Comparison with Fabry-Perot QC lasers shows an overall improved performance of QC-DFB lasers.",

keywords = "Distributed-feedback laser, Mid-infrared, Unipolar semiconductor laser",

author = "Claire Gmachl and J{\'e}r{\^o}me Faist and Baillargeon, {James N.} and Federico Capasso and Carlo Sirtori and Sivco, {Deborah L.} and Chu, {S. N.George} and Cho, {Alfred Y.}",

note = "Funding Information: Manuscript received March 26, 1997; revised April 17, 1997. This work was supported in part by Defence Advanced Research Projects Agency/U.S. Army Research Office under Contract DAAH04-96-C-0026.",

year = "1997",

month = aug,

doi = "10.1109/68.605510",

language = "English (US)",

volume = "9",

pages = "1090--1092",

journal = "IEEE Photonics Technology Letters",

issn = "1041-1135",

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

number = "8",

}

TY - JOUR

T1 - Complex-coupled quantum cascade distributed-feedback laser

AU - Gmachl, Claire

AU - Faist, Jérôme

AU - Baillargeon, James N.

AU - Capasso, Federico

AU - Sirtori, Carlo

AU - Sivco, Deborah L.

AU - Chu, S. N.George

AU - Cho, Alfred Y.

N1 - Funding Information: Manuscript received March 26, 1997; revised April 17, 1997. This work was supported in part by Defence Advanced Research Projects Agency/U.S. Army Research Office under Contract DAAH04-96-C-0026.

PY - 1997/8

Y1 - 1997/8

N2 - Quantum-cascade distributed-feedback lasers (QC-DFB) with a grating close to the active region are reported. Feedback is provided by the grating in a refractive index-dominated coupling scheme. Reliable single-mode emission at λ cm ≈ 5.4 μm with a side-mode suppression ratio (SMSR) ≈30 dB is observed. The laser is continuously tunable over 40 nm with a coefficient of Δλ/ΔT ≈ 0.37 nm/K in the temperature range from 200 K to 300 K. Comparison with Fabry-Perot QC lasers shows an overall improved performance of QC-DFB lasers.

AB - Quantum-cascade distributed-feedback lasers (QC-DFB) with a grating close to the active region are reported. Feedback is provided by the grating in a refractive index-dominated coupling scheme. Reliable single-mode emission at λ cm ≈ 5.4 μm with a side-mode suppression ratio (SMSR) ≈30 dB is observed. The laser is continuously tunable over 40 nm with a coefficient of Δλ/ΔT ≈ 0.37 nm/K in the temperature range from 200 K to 300 K. Comparison with Fabry-Perot QC lasers shows an overall improved performance of QC-DFB lasers.

KW - Distributed-feedback laser

KW - Mid-infrared

KW - Unipolar semiconductor laser

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DO - 10.1109/68.605510

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EP - 1092

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 8

ER -

Complex-coupled quantum cascade distributed-feedback laser

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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