Flexible beam delivery of ultrafast laser through vacuum-pumped anti-resonant hollow-core fiber

被引：5

作者：

Cai, Yiming ^{[1
]}

Mai, Yifan ^{[2
]}

Xiang, Shen ^{[1
]}

Shi, Jianhong ^{[1
]}

Zhu, Qixin ^{[1
]}

Li, Rong ^{[2
]}

Li, Jinyan ^{[1
]}

Li, Cheng ^{[1
]}

Yan, Dapeng ^{[1
]}

Xing, Yingbin ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan, Peoples R China

[2] Wuhan Raycus Fiber Laser Technol Co Ltd, Wuhan, Peoples R China

来源：

FRONTIERS IN PHYSICS | 2023年 / 11卷

基金：

中国国家自然科学基金;

关键词：

anti-resonant fiber; AR-HCF; flexible beam delivery; vacuum-pumped HCF; ultrafast laser delivery; NEGATIVE-CURVATURE; SILICA HOLLOW; OPTICAL PULSES; POWER; LIGHT; GENERATION; TRANSMISSION; PROPAGATION; LIMITS;

D O I：

10.3389/fphy.2023.1160287

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate the transmission of a 100 MW-peak-power ultrafast laser through a 5-m anti-resonant hollow-core fiber (AR-HCF) with a pumpable armored tube for air exhaust. The AR-HCF consists of a 45-mu m-hollow-core and seven untouched capillaries with an attenuation of 0.11 dB/m measured at a wavelength of 1030 nm. We investigate the effect of air-filling and vacuum pumping on transmission efficiency and pulse distortion. The comparison reveals the importance of controlling air concentration in hollow-core fibers (HCFs) for achieving high transmission efficiency and pulse quality. With the suppression of air concentration, the transmission efficiency increases from 61% to 72%, and pulse distortion is effectively controlled. The results demonstrate the potential of AR-HCFs for high-power ultrafast laser delivery systems for various applications. The pumpable armored tube design provides a simple and effective solution to suppress self-phase modulation (SPM) and enable flexible beam delivery.

引用

页数：7

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