Browsing by Author "Shernyakov, Y. M."
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- Diode lasers with asymmetric barriers for 850 nm spectral range: experimental studies of power characteristicsZubov, Fedor I.; Zhukov, A. E.; Shernyakov, Y. M.; Maximov, Mikhail V.; Semenova, E. S.; Asryan, Levon V. (IOP, 2015-01-01)It is demonstrated that the use of asymmetric barrier layers in a waveguide of a diode laser suppress non-linearity of light-current characteristic and thus improve its power characteristics under high current injection. The results are presented for 850-nm AlGaAs/GaAs broad-area lasers with GaInP and AlInGaAs asymmetric barriers.
- Improvement of temperature-stability in a quantum well laser with asymmetric barrier layersZhukov, A. E.; Kryzhanovskaya, Natalia V.; Zubov, Fedor I.; Shernyakov, Y. M.; Maximov, Mikhail V.; Semenova, E. S.; Yvind, K.; Asryan, Levon V. (AIP Publishing, 2012-01-01)We fabricated and tested a quantum well laser with asymmetric barrier layers. Such a laser has been proposed earlier to suppress bipolar carrier population in the optical confinement layer and thus to improve temperature-stability of the threshold current. As compared to the conventional reference laser structure, our laser with asymmetric barrier layers demonstrates reduced internal optical loss, lower threshold current density at elevated temperatures, and higher characteristic temperature (143 vs. 99K at 20 degrees C). (C) 2012 American Institute of Physics. [doi: 10.1063/1.3676085]