Recent demonstrations of optically pumped lasers based on GeSn alloys put forward the prospect of efficient laser sources monolithically integrated on a Si photonic platform. For instance, GeSn layers with 12.5% of Sn were reported to lase at 2.5 μm wavelength up to 130 K. In this work, we report a longer emitted wavelength and a significant improvement in lasing temperature. The improvements resulted from the use of higher Sn content GeSn layers of optimized crystalline quality, grown on graded Sn content buffers using reduced pressure CVD. The fabricated GeSn micro-disks with 13% and 16% of Sn showed lasing operation at 2.6 μm and 3.1 μm wavelengths, respectively. For the longest wavelength (i.e., 3.1 μm), lasing behavior was demonstrated up to 180 K, with a threshold of 377 kW/cm2 at 25 K.
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Optically pumped GeSn micro-disks with 16% Sn lasing at 3.1 μm up to 180 K
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28 August 2017
Research Article|
August 28 2017
Optically pumped GeSn micro-disks with 16% Sn lasing at 3.1 μm up to 180 K
V. Reboud;
V. Reboud
a)
1
University Grenoble Alpes, CEA-LETI
, Minatec, 17 rue des Martyrs, 38000 Grenoble, France
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A. Gassenq;
A. Gassenq
2
University Grenoble Alpes, CEA, INAC, PHELIQS
, F-38000 Grenoble, France
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N. Pauc;
N. Pauc
2
University Grenoble Alpes, CEA, INAC, PHELIQS
, F-38000 Grenoble, France
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J. Aubin
;
J. Aubin
1
University Grenoble Alpes, CEA-LETI
, Minatec, 17 rue des Martyrs, 38000 Grenoble, France
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L. Milord;
L. Milord
1
University Grenoble Alpes, CEA-LETI
, Minatec, 17 rue des Martyrs, 38000 Grenoble, France
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Q. M. Thai;
Q. M. Thai
2
University Grenoble Alpes, CEA, INAC, PHELIQS
, F-38000 Grenoble, France
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M. Bertrand
;
M. Bertrand
1
University Grenoble Alpes, CEA-LETI
, Minatec, 17 rue des Martyrs, 38000 Grenoble, France
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K. Guilloy;
K. Guilloy
2
University Grenoble Alpes, CEA, INAC, PHELIQS
, F-38000 Grenoble, France
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D. Rouchon;
D. Rouchon
1
University Grenoble Alpes, CEA-LETI
, Minatec, 17 rue des Martyrs, 38000 Grenoble, France
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J. Rothman;
J. Rothman
1
University Grenoble Alpes, CEA-LETI
, Minatec, 17 rue des Martyrs, 38000 Grenoble, France
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T. Zabel;
T. Zabel
3
Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute
, 5232 Villigen, Switzerland
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F. Armand Pilon;
F. Armand Pilon
3
Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute
, 5232 Villigen, Switzerland
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H. Sigg;
H. Sigg
3
Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute
, 5232 Villigen, Switzerland
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A. Chelnokov;
A. Chelnokov
1
University Grenoble Alpes, CEA-LETI
, Minatec, 17 rue des Martyrs, 38000 Grenoble, France
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J. M. Hartmann;
J. M. Hartmann
1
University Grenoble Alpes, CEA-LETI
, Minatec, 17 rue des Martyrs, 38000 Grenoble, France
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V. Calvo
V. Calvo
2
University Grenoble Alpes, CEA, INAC, PHELIQS
, F-38000 Grenoble, France
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V. Reboud
1,a)
A. Gassenq
2
N. Pauc
2
J. Aubin
1
L. Milord
1
Q. M. Thai
2
M. Bertrand
1
K. Guilloy
2
D. Rouchon
1
J. Rothman
1
T. Zabel
3
F. Armand Pilon
3
H. Sigg
3
A. Chelnokov
1
J. M. Hartmann
1
V. Calvo
2
1
University Grenoble Alpes, CEA-LETI
, Minatec, 17 rue des Martyrs, 38000 Grenoble, France
2
University Grenoble Alpes, CEA, INAC, PHELIQS
, F-38000 Grenoble, France
3
Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute
, 5232 Villigen, Switzerland
Appl. Phys. Lett. 111, 092101 (2017)
Article history
Received:
March 30 2017
Accepted:
July 18 2017
Citation
V. Reboud, A. Gassenq, N. Pauc, J. Aubin, L. Milord, Q. M. Thai, M. Bertrand, K. Guilloy, D. Rouchon, J. Rothman, T. Zabel, F. Armand Pilon, H. Sigg, A. Chelnokov, J. M. Hartmann, V. Calvo; Optically pumped GeSn micro-disks with 16% Sn lasing at 3.1 μm up to 180 K. Appl. Phys. Lett. 28 August 2017; 111 (9): 092101. https://doi.org/10.1063/1.5000353
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