Freiburg 2024 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 46: Lasers I

Q 46.5: Vortrag

Donnerstag, 14. März 2024, 12:00–12:15, HS 3118

Intra-Cavity Control of Dual-Comb Soliton Motion inside a single Fiber Laser — •Julia A. Lang¹, Sarah Hutter², Alfred Leitenstorfer², and Georg Herink¹ — ¹Experimental Physics VIII - Ultrafast Dynamics, University of Bayreuth, Bayreuth, Germany — ²Department of Physics and Center for Applied Photonics, University of Konstanz, Konstanz, Germany

Ultrafast lasers can exhibit dynamic sequences of multiple solitons. However, understanding and controlling their dynamics or utilizing them practically remains challenging. In this contribution, we introduce a new method for the precise control of relative soliton motion. By employing intra-cavity acousto-optic modulation, we selectively modulate single pulses out of two interlaced harmonically mode-locked frequency combs in an all-fiber Er:fiber laser. Upon external stimuli, the trajectories exhibit rapid and deterministically adjustable behaviour as a result of the interplay of ultrafast nonlinearity and laser gain dynamics. Based on these findings, we demonstrate fast all-optical scanning of picosecond pump-probe delays and programmable free-form soliton trajectories [1].

[1] Lang, J. A., Hutter, S. R., Leitenstorfer, A., & Herink, G. (2023). Controlling Dual-Comb Soliton Motion inside a single Fiber Laser Cavity. arXiv preprint arXiv:2308.13472.

Keywords: Soliton; Ultrafast lasers; Dual-Comb lasers