Dresden 2020 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 51: Semiconductor lasers I
HL 51.5: Talk
Wednesday, March 18, 2020, 16:00–16:15, POT 51
Monolithic passively mode-locked quantum well lasers — •Christoph Weber1, Andreas Klehr2, Andrea Knigge2, and Stefan Breuer1 — 1Institute of Applied Physics, Technische Universität Darmstadt, 64289 Darmstadt, Germany — 2Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany
Monolithic passively mode-locked quantum well lasers emitting at wavelength around 1070 nm are ideal sources of picosecond short optical pulses at high repetition rates for novel data transmission systems or multi-photon imaging applications. For 2 mm long narrow ridge waveguide lasers with an absorber to total length ratio of 10 % emission of 2 ps short optical pulses with high pulse train stability has been reported [Weber et al, IEEE J. Quantum Electron. 54 (3), 2000609 (2018)]. In this contribution we study monolithic semiconductor lasers with different lengths, different absorber to total length ratios and different ridge widths and gain material based on InAs/InGaAs quantum wells. We analyze the pulse generation and the pulse train timing stability in dependence on the different laser cavity designs.