Theoretical and experimental analysis of 1.3-mu m InGaAsN/GaAs lasers
Tomic, S, O'Reilly, EP, Fehse, R, Sweeney, SJ, Adams, AR, Andreev, AD, Choulis, SA, Hosea, TJC and Riechert, H (2003) Theoretical and experimental analysis of 1.3-mu m InGaAsN/GaAs lasers IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 9 (5). pp. 1228-1238.
We present a comprehensive theoretical and experimental analysis of 1.3-mum InGaAsN/GaAs lasers. After introducing the 10-band k . p Hamiltonian which predicts transition energies observed experimentally, we employ it to investigate laser properties of ideal and real InGaAsN/GaAs laser devices. Our calculations show that the addition of N reduces the peak gain and differential gain at fixed carrier density, although the gain saturation value and the peak gain as a function of radiative current density are largely unchanged due to the incorporation of N. The gain characteristics are optimized by including the minimum amount of nitrogen necessary to prevent strain relaxation at the given well thickness. The measured spontaneous emission and gain characteristics of real devices are well described by the theoretical model. Our analysis shows that the threshold current is dominated by nonradiative, defect-related recombination. Elimination of these losses would enable laser characteristics comparable with the best InGaAsP/InP-based lasers with the added advantages provided by the GaAs system that are important for vertical integration.
|Divisions :||Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Photonics|
|Date :||1 September 2003|
|Identification Number :||https://doi.org/10.1109/JSTQE.2003.819516|
|Uncontrolled Keywords :||Science & Technology, Technology, Physical Sciences, Engineering, Electrical & Electronic, Optics, Physics, Applied, Engineering, Physics, 1.3-mu m laser emission, dilute nitride materials, InGaAsN, optical fiber telecommunications, semiconductor devices modeling, semiconductor lasers, QUANTUM-WELL LASERS, 1.3 MU-M, BAND-GAP ENERGY, CENTER-DOT-P, TEMPERATURE-DEPENDENCE, SEMICONDUCTOR-LASERS, THRESHOLD-CURRENT, ROOM-TEMPERATURE, RECOMBINATION PROCESSES, ELECTRONIC-STRUCTURE|
|Related URLs :|
|Depositing User :||Mr Adam Field|
|Date Deposited :||27 May 2010 14:08|
|Last Modified :||23 Sep 2013 18:27|
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