Delivery of CW laser power up to 300 watts at 1080 nm by an uncooled low-loss anti-resonant hollow-core fiber

Xinyue Zhu, Dakun Wu, Yazhou Wang, Fei Yu, Qiurui Li, Yunfeng Qi, Jonathan Knight, Shufen Chen, Lili Hu

Research output: Contribution to journalArticlepeer-review


In this paper, we report the use of a 3-meter low-loss anti-resonant hollow-core fiber (AR-HCF) to deliver up to 300 W continuous-wave laser power at 1080 nm wavelength from a commercial fiber laser source. A near-diffraction-limited beam is measured at the output of the AR-HCF and no damage to the uncooled AR-HCF is observed for several hours of laser delivery operation. The limit of AR-HCF coupling efficiency and laser-induced thermal effects that were observed in our experiment are also discussed.

Original languageEnglish
Pages (from-to)1492-1501
Number of pages10
JournalOptics Express
Issue number2
Early online date8 Jan 2021
Publication statusPublished - 18 Jan 2021

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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