Transitions between mode-locked and noise-like pulsed states in a multimode fiber laser

Optics Letters 2026 Open access

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Authors: Karolina Stefańska, Vittorio Cecconi, Katarzyna Krupa, Luyao Zhou, J. Alvarez-Chavez, Stuart G. Murdoch, Fabio Mangini, Stefan W. Wabnitz
DOI: 10.1364/ol.596945
Cited by: 1
References: 21

Abstract

We experimentally demonstrate transitions between stably mode-locked and noise-like pulse states in a ytterbium-doped fiber laser controlled by adjusting the level of intracavity spectral filtering. In both regimes, Kerr spatial self-cleaning provides high-quality output beams. By using cavities with different lengths of graded-index fiber, we show that, in the mode-locked regime, a proper balance between chromatic and modal dispersion maximizes pulse compressibility. We compress 2.1-kW, 6.7-ps pulses down to 170 fs using an external grating pair, in good agreement with numerical simulations.

Fields of Study & Subjects

Advanced Fiber Laser Technologies Photonic Crystal and Fiber Optics Advanced Fiber Optic Sensors

Publication details

Journal / source
Optics Letters
Publisher
Optica Publishing Group
Volume
51
Issue
11
Pages
3229–3229
Publication date
11 May 2026
Language
EN