Berlin 2018 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 13: Poster Session I
HL 13.82: Poster
Montag, 12. März 2018, 17:30–19:30, Poster B
Temperature-control based fiber optical self-feedback configuration for passively mode-locked semiconductor lasers — •Sebastian Stutz1, Dominik Auth1, Christoph Weber1, Oleg Nikiforov1, Luke F. Lester2, Thomas Walther1, and Stefan Breuer1 — 1Institut für Angewandte Physik, Technische Universität Darmstadt, Schlossgartenstraße 7, 64289 Darmstadt, Germany — 2Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
Passively mode-locked (PML) semiconductor lasers (SCLs) generating short optical pulse widths and high pulse repetition rates (RR) are promising compact sources for future time-critical applications. Since the pulse train of PML SCLs can exhibit considerable timing jitter (TJ), experimental concepts to improve the TJ are demanded. A dual-cavity optical self-feedback concept to improve the pulse train stability and control the RR has recently been reported [Nikiforov et al., Opt. Expr. 24, 14301 (2016)]. In this contribution, we present experimental results obtained by an all optical time-delayed feedback configuration where a highly-precise temperature controlled optical fiber delay is employed for the first time. By substantially reducing environmental influences including acoustic noise, temperature instabilities and vibrations, we are able to achieve a substantially improved pulse train stability.