Dynamics of blue laser diodes with narrow and wide quantum wells

Jannina Tepass; Lukas Uhlig; Mateusz Hajdel; Grzegorz Muziol; Ulrich Theodor Schwarz

doi:10.1117/12.2649715

21 March 2023 Dynamics of blue laser diodes with narrow and wide quantum wells

Jannina Tepass, Lukas Uhlig, Mateusz Hajdel, Grzegorz Muziol, Ulrich Theodor Schwarz

Proceedings Volume PC12421, Gallium Nitride Materials and Devices XVIII; (2023) https://doi.org/10.1117/12.2649715
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

In this study laser diodes with different InGaN quantum well thickness up to 25 nm are analyzed. For those devices efficient screening of the piezoelectric field and operation on excited states was reported. We observe the time-dependent behavior of the intensity and emission spectrum below threshod operation, which can give insights about the QW tilt and the wave function overlap. In particular we observe a strong rise in intensity and a wavelength shift at the trailing edge of the pulse. Furthermore, we investigate the laser operation of the different quantum well width diodes showing unusual spectral-temporal behavior especially for the wide QW devices.

Conference Presentation

Citation Download Citation

Jannina Tepass, Lukas Uhlig, Mateusz Hajdel, Grzegorz Muziol, and Ulrich Theodor Schwarz "Dynamics of blue laser diodes with narrow and wide quantum wells", Proc. SPIE PC12421, Gallium Nitride Materials and Devices XVIII, (21 March 2023); https://doi.org/10.1117/12.2649715

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