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DY: Fachverband Dynamik und Statistische Physik
DY 27: Poster: Nonlinear Dynamics, Pattern Formation, Granular Matter
DY 27.8: Poster
Mittwoch, 19. März 2025, 15:00–18:00, P4
Rapid Control of Soliton Dynamics in Dual-Comb Lasers via Intra-Cavity Modulation — Julia Lang1, •Simeon Schmitt1, Luca Nimmesgern1, Sarah Hutter2, Alfred Leitenstorfer2, and Georg Herink1 — 1Universität Bayreuth, Germany — 2Universität Konstanz, Germany
We present a novel approach for controlling the timing of solitons in ultrafast mode-locked lasers, enabling the programmable synthesis of ultrashort soliton pulse patterns. The approach utilizes intra-cavity acousto-optic modulation in a single, harmonically mode-locked Er:fiber laser. By employing single-pulse modulation, we induce precise timing shifts between the two temporally separated, interlaced soliton combs. Through external splitting and recombination, we obtain temporally overlaying ultrashort soliton pulse-sequences that can be rapidly tuned above kHz scanning rates. We present real-time spectral interferometry data based on the dispersive Fourier transformation and corresponding simulations that resolve the underlying intersoliton motion due to ultrafast nonlinearities and laser gain dynamics. [1]
[1] J. A. Lang, S. R. Hutter, A. Leitenstorfer, and G. Herink. 'Controlling Intracavity Dual-Comb Soliton Motion in a Single-Fiber Laser'. Science Advances 10 (2024)
Keywords: Soliton Dynamics; Dual-Comb; Ultrafast mode-locked lasers; Dispersive Fourier transformation