High-power femtosecond vortices generated from a Kerr-lens mode-locked solid-state Hermite-Gaussian oscillator

Zijun Peng, Qing Wang, Hongshan Chen, Hongyu Liu, Xin Liu, Lisong Yan, Jinwei Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We report the generation of high-order transverse modes from a Kerr-lens mode-locked femtosecond laser. Two different orders of Hermite-Gaussian modes were realized by non-collinear pumping, which were converted into the corresponding Laguerre-Gaussian vortex modes using a cylindrical lens mode converter. The mode-locked vortex beams, with an average power of 1.4 W and 0.8 W, contained pulses as short as 126 fs and 170 fs at the first and second Hermite-Gaussian mode orders, respectively. This work demonstrates the possibility of developing Kerr-lens mode-lockedbulklaserswithvariouspurehigh-ordermodes and paves the way for generating ultrashort vortex beams.

Original languageEnglish
Pages (from-to)2708-2711
Number of pages4
JournalOptics Letters
Volume48
Issue number10
DOIs
Publication statusPublished - 15 May 2023

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