InGaN/GaN violet-blue multiple quantum well heterostructure lasers for temperature range of 80-450 K

Bernd Schineller; Harry Protzmann; Markus Luenenbuerger; Georg Gerstenbrandt; Michael Heuken; Evgenii V. Lutsenko; Vitaly Z. Zubialevich; Vyacheslav N. Pavlovskii; Alexander L. Gurskii; Gennadii P. Yablonskii

doi:10.1117/12.517991

6 October 2003 InGaN/GaN violet-blue multiple quantum well heterostructure lasers for temperature range of 80-450 K

Bernd Schineller, Harry Protzmann, Markus Luenenbuerger, Georg Gerstenbrandt, Michael Heuken, Evgenii V. Lutsenko, Vitaly Z. Zubialevich, Vyacheslav N. Pavlovskii, Alexander L. Gurskii, Gennadii P. Yablonskii

Author Affiliations +

Proceedings Volume 5137, International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems; (2003) https://doi.org/10.1117/12.517991
Event: International Conference on Lasers, Applications, and Technologies 2002, 2002, Moscow, Russian Federation

Abstract

Laser and optical properties of InGaN/GaN multiple quantum well heterostructures were investigated as functions of temperature (T=80-450 K) and excitation intensity (I_exc=10-1100 kW/cm²) of the N₂ laser radiation. Laser action was achieved in all types of the MQWs from the violet up to the blue spectral region (λ_las=405-470 nm). The laser threshold at room temperature was 35-100 kW/cm² and 70-150 kW/cm² for the 'violet' and 'blue' lasers, correspondingly. The characteristic temperature in the temperature range of 80-220 K was T₀=180 K for the 'violet' and T₀=530 K for the 'blue' lasers. The T₀ was lower for all types of lasers at T>250 K. It was shown that the overheating of the active region under high excitation intensities can reach 40-100 K and it is due to inherent laser radiation.

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Bernd Schineller, Harry Protzmann, Markus Luenenbuerger, Georg Gerstenbrandt, Michael Heuken, Evgenii V. Lutsenko, Vitaly Z. Zubialevich, Vyacheslav N. Pavlovskii, Alexander L. Gurskii, and Gennadii P. Yablonskii "InGaN/GaN violet-blue multiple quantum well heterostructure lasers for temperature range of 80-450 K", Proc. SPIE 5137, International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems, (6 October 2003); https://doi.org/10.1117/12.517991

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