Work

Single-shot femtosecond-written segmented waveguides in amorphous materials

Year: 2025

Type: article

Abstract: We explore the inscription of single-shot segmented waveguides in glasses using continuous trains of ultrashort laser pulses and fast scanning velocities. By varying the period, we show how the waveguide shape undergoes minor changes, but the overall index contrast, and therefore the guidance strength, can be controlled. On the applicative side, these waveguides allow an accurate control on the mode spatial extension, while preserving the overall shape and position of the fundamental mode. On the basic science side, owing to the suppression of cumulative effects, these waveguides are an ideal workbench for a reductionism-driven investigation of the highly nonlinear interaction responsible for the permanent modification.

Source: APL Photonics

DOI: 10.1063/5.0301051

Authors: N. Alasgarzade, A. Alberucci, Chandroth P. Jisha, S. Nolte

Institutions: Friedrich Schiller University Jena, Fraunhofer Institute for Applied Optics and Precision Engineering

Language: English

Topic: Laser Material Processing Techniques

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,750

Funders: Freistaat Thüringen, Bundesministerium für Bildung und Forschung