Glass tube cutting with aberration-corrected non-diffracting ultrashort laser pulses

TL;DR

This paper presents a laser-based method for precise glass tube cutting that uses aberration-corrected non-diffracting ultrashort pulses to achieve clean, full-thickness modifications along complex curved surfaces efficiently.

Contribution

It introduces a novel laser processing approach combining beam shaping and aberration correction for improved glass tube cutting quality and speed.

Findings

Successful separation of complex glass contours with minimal debris

High-quality surface finish achieved through the method

Enhanced processing speed compared to traditional techniques

Abstract

The separation of complex inner and outer contours of glass articles with curved surfaces using ultrashort pulsed lasers is reported. Single-pass, full-thickness modifications along the entire substrate are achieved using a processing optics that allows for beam shaping of non-diffracting beams and, additionally, for aberration compensation of phase distortions occurring at the curved interface. The glass articles finally separated by thermal stress or via selective etching meet the demands of the medical industry in terms of micro-debris, surface quality and processing speed.