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HL: Fachverband Halbleiterphysik
HL 64: Poster II
HL 64.17: Poster
Donnerstag, 19. März 2020, 10:00–13:00, P1A
Gain, dispersion and alpha measurements of p-doped quantum dot lasers — •Felix Wilke1, Matteo Angelozzi2, Paolo Bardella2, Christoph Weber1, Dominik Auth1, Vladimir V. Korenv3,4, Artem V. Saveleyev3, Mikhail V. Maximov3,4, Alexey E. Zhukov3,4, and Stefan Breuer1 — 1Institute of Applied Physics, Technische Universität Darmstadt, 64289 Darmstadt, Germany — 2Department of Electronics and Telecommunications, Politecnico di Torino, 10129 Torino, Italy — 3St. Petersburg Academic University RAS, ul. Khlopina 8/3, 194021 St. Petersburg, Russia — 4Peter the Great St. Petersburg Polytechnic University, St. Petersburg 195251, Russia
We report on the experimental investigations on the role of p-doping on the spectrally resolved modal gain and absorption, group delay dispersion and linewidth enhancement factor in two-section InAs/InGaAs semiconductor quantum dot lasers emitting at around 1250 nm. The net modal gain curves are obtained during post-processing and three methodologies are employed: namely Fourier-transform infrared spectroscopy [Hofstetter et al. PTL 11,1372 (1999)], Hakki-Paoli [Hakki et al. JAP 46,1299 (1975)] and mode sum [Cassidy JAP 56, 3096 (1984)]. This work is supported by the Russian Foundation for Basic Research (project #18-502-12081).