Berlin 2018 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 13: Poster Session I
HL 13.80: Poster
Monday, March 12, 2018, 17:30–19:30, Poster B
Repetition rate tuning range analysis of passively mode-locked quantum-well semiconductor lasers subject to optical self-feedback: simulation and experiment — •Dominik Auth1, Christoph Weber1, Andreas Klehr2, Andrea Knigge2, and Stefan Breuer1 — 1Institut für Angewandte Physik, Technische Universität Darmstadt, Schlossgartenstraße 7, 64289 Darmstadt, Germany — 2Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany
Compact monolithic passively mode-locked (PML) semiconductor lasers (SCLs) with multi-GHz repetition rates (RR) emitting at wavelengths of around 1070 nm are attractive ultrafast sources for seeding ytterbium doped fiber amplifiers and for photonic communication at high data rates. In this work, the pulse RR tuning range of PML multi quantum-well (QW) SCLs subject to single cavity optical feedback (OFB) is investigated. A stochastic time-domain model [Drzewietzki et al., Opt. Expr. 21 (2013), 16142] is applied to predict the RR tuning range and timing jitter (TJ) reduction in QW SCLs subject to very long OFB lengths up to 73 m. Furthermore, the obtained RR tuning range predictions for different OFB lengths and the TJ reduction are proven experimentally by studying 3 mm long PML QW SCLs with different absorber lengths and subject to long OFB. The limits of the RR tuning range are also confirmed experimentally.