Details

Autor(en) / Beteiligte

• Hao, Jingjie
• Qin, Yingxiong
• Chen, Hongshan
• Liu, Heyan
• Wang, Qing
• Zhang, Fengfeng
• Zhang, Shenjin
• Zhang, Jinwei

Titel

High-power vortex beams generated from a Yb:YAG thin-disk laser with spot-defect mirrors

Ist Teil von

• Optics and laser technology, 2024-02, Vol.169, p.110112, Article 110112

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2024

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• •We have demonstrated high-power and high-order vortex beams generated by a Yb:YAG thin-disk oscillator with a spot-defect mirror.•The power of the vortex beam directly delivered from the oscillator is up to 80 W, which is the highest power of any vortex laser up to now.•Meanwhile, high order Hermite-Gaussian modes tuned from HG1,1 to HG5,1 are also achieved by using the defective spot with output powers ranging from 17 W to 30 W, which improves the power of HGm,n modes by an order of magnitude compared with bulk solid-state laser.•A cylindrical-lens mode converter is built to convert the HGm,1 modes to the LG1, m-1 modes.•The phase properties of all of the vortex beams aforementioned are measured by Mach-Zehnder interferometer.•These results lay the foundation for material processing, multiple-trap laser tweezers and macroscopic quantum entanglements. We report the generation of high-power and high-order vortex beams based on a Yb:YAG thin-disk laser oscillator with a spot-defect mirror. High-quality vortex beams were directly emitted by the oscillator with an output power of 80 W, which is the highest output power of any vortex laser oscillator. Tunable high-order Hermite-Gaussian modes from HG1,1 to HG5,1 were also generated, and subsequently converted to Laguerre-Gaussian beams by a cylindrical-lens mode converter. The vortex characteristics of the output were confirmed with a Mach-Zehnder interferometer. This work demonstrates an effective way to generate high-quality, high-power and high-order optical vortex beams.