Work

Temporal Talbot effect: from a quasi-linear Talbot carpet to soliton crystals and Talbot solitons

Year: 2024

Type: article

Abstract: The temporal Talbot effect refers to the periodic self-imaging of pulse trains in optical fibers. The connection between the linear and nonlinear temporal Talbot effect is still not fully understood. To address this challenge, we use the soliton radiation beat analysis (SRBA) and numerically investigate the evolution of a phase-modulated continuous-wave laser input in a passive single-mode fiber. We identify three input-power-dependent regimes and their Talbot carpets: the quasi-linear regime for low input powers, the intermediate one, and separated Talbot solitons for higher powers. We show that the intermediate regime hosts soliton crystals rather than rogue waves, as reported in the literature. The Talbot soliton beating can be used for pulse repetition-rate multiplication in the nonlinear regime. We also show two types of solitons involved: some encoded in the whole frequency comb, and the individual solitons carried only by particular comb lines.

Source: Optics Letters

DOI: 10.1364/ol.530216

Authors: Marina Zajnulina, Michael Böhm

Institution: Wismar University of Applied Sciences

Language: English

Topic: Advanced Fiber Laser Technologies

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Service Public de Wallonie

Award: G489751319