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Lasers
Broadening and splitting of emission spectra of a GaInAs/AlInAs quantum cascade laser in a quantising magnetic field
I. I. Zasavitskiia, D. A. Pashkeeva, E. V. Bushueva, G. T. Mikayelyanb a P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
b Inject Ltd., Saratov
Abstract:
We have studied the effect of a relatively weak quantising magnetic field on emission spectra of a GaInAs/AlInAs quantum cascade laser near 10 K. The results demonstrate that, as the magnetic field induction increases to 7 T, the spectra broaden (to 5 meV) and split into three emission bands. As a result, we observe simultaneously up to 80 longitudinal lasing modes in the three bands and the integrated laser output intensity increases 70 times. The presence of bands in the emission spectra can be accounted for in terms of the magnetic quantisation of the laser levels into spinsplit Landau levels. The increase in emission intensity is attributable primarily to phonon resonance adjustment in a magnetic field.
Keywords:
quantum cascade laser, quantum well, barrier, quantising magnetic field, splitting of emission spectra, GaInAs/AlInAs system.
Received: 10.12.2012
Citation:
I. I. Zasavitskii, D. A. Pashkeev, E. V. Bushuev, G. T. Mikayelyan, “Broadening and splitting of emission spectra of a GaInAs/AlInAs quantum cascade laser in a quantising magnetic field”, Kvantovaya Elektronika, 43:2 (2013), 144–146 [Quantum Electron., 43:2 (2013), 144–146]
Linking options:
https://www.mathnet.ru/eng/qe15077 https://www.mathnet.ru/eng/qe/v43/i2/p144
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Abstract page: | 295 | Full-text PDF : | 130 | References: | 41 | First page: | 10 |
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