The Role of Carrier Diffusion in RNGH Instabilities of Quantum Cascade Lasers
The Role of Carrier Diffusion in RNGH Instabilities of Quantum Cascade Lasers
Quantum Cascade Laser (QCL) structures exhibit features of multimode Risken-Nummedal-Graham-Haken (RNGH) instabilities [2,3] at low excess above lasing threshold, at pth2 ~ 1.1 [1]. The onset of such RNGH instabilities and excitation of regular self-pulsations may provide practical means to produce picosecond pulses in the MIR spectral range. However, conditions that would trigger such QCL dynamics have not been elucidated so far and these conditions cannot be inferred from conventional laser diodes (LDs), in which RNGH instabilities have not been observed in experiment.
Vuković, N.
3de33ba9-eb8f-4a06-a65e-4ac0a602a157
Radovanović, J.
9ad675c3-e1d3-4ede-8ec1-31ba16d8938b
Milanović, V.
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Boiko, D.L.
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21 June 2015
Vuković, N.
3de33ba9-eb8f-4a06-a65e-4ac0a602a157
Radovanović, J.
9ad675c3-e1d3-4ede-8ec1-31ba16d8938b
Milanović, V.
d46bb1cd-2366-4e69-84cc-ad53f5174b9c
Boiko, D.L.
86db0e92-0797-4e52-9c1d-399d1a8dff0b
Vuković, N., Radovanović, J., Milanović, V. and Boiko, D.L.
(2015)
The Role of Carrier Diffusion in RNGH Instabilities of Quantum Cascade Lasers.
2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015, , Munich, Germany.
21 - 25 Jun 2015.
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Conference or Workshop Item
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Abstract
Quantum Cascade Laser (QCL) structures exhibit features of multimode Risken-Nummedal-Graham-Haken (RNGH) instabilities [2,3] at low excess above lasing threshold, at pth2 ~ 1.1 [1]. The onset of such RNGH instabilities and excitation of regular self-pulsations may provide practical means to produce picosecond pulses in the MIR spectral range. However, conditions that would trigger such QCL dynamics have not been elucidated so far and these conditions cannot be inferred from conventional laser diodes (LDs), in which RNGH instabilities have not been observed in experiment.
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Published date: 21 June 2015
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Poster
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2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015, , Munich, Germany, 2015-06-21 - 2015-06-25
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Local EPrints ID: 442442
URI: http://eprints.soton.ac.uk/id/eprint/442442
PURE UUID: 759cd973-0810-4637-8fa1-fc161db98d2c
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Date deposited: 15 Jul 2020 16:31
Last modified: 16 Mar 2024 08:39
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Author:
N. Vuković
Author:
J. Radovanović
Author:
V. Milanović
Author:
D.L. Boiko
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