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5 March 2021 Hysteresis in IV-curve of blue multisection laser diodes due to photon and carrier density changes
Dominic J. Kunzmann, Ulrich T. Schwarz
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Proceedings Volume 11686, Gallium Nitride Materials and Devices XVI; 116860O (2021) https://doi.org/10.1117/12.2583003
Event: SPIE OPTO, 2021, Online Only
Abstract
Blue multisection laser diodes are being used before for short pulse applications with high output powers. Hysteresis effects in the current-optical output power (IP) characteristics due to absorption and saturation are known. We additionally observed hysteresis effects in the current-forward voltage (IV) characteristics of these diodes. The voltage increases at the lasing onset current which is different from some observations before. We explain this rise with the shielding of the piezoelectric field, which exists due the stress of the material, due to an increased carrier density below the onset current.
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Dominic J. Kunzmann and Ulrich T. Schwarz "Hysteresis in IV-curve of blue multisection laser diodes due to photon and carrier density changes", Proc. SPIE 11686, Gallium Nitride Materials and Devices XVI, 116860O (5 March 2021); https://doi.org/10.1117/12.2583003
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KEYWORDS
Semiconductor lasers
Optical simulations
Quantum wells
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