光学
材料科学
波长
芯(光纤)
谐振器
衰减
激光器
半径
耦合损耗
纤维
模式音量
光纤
光电子学
色散位移光纤
光纤传感器
物理
计算机科学
计算机安全
复合材料
作者
Dakun Wu,Fei Yu,Cheng Wu,Meng Zhao,Jinhu Zheng,Lili Hu,J. C. Knight
出处
期刊:Optics Express
[The Optical Society]
日期:2023-06-13
卷期号:31 (13): 21870-21870
被引量:3
摘要
In this work, multi-mode anti-resonant hollow-core fiber (AR-HCF) with 18 fan-shaped resonators is fabricated and characterized. The ratio of core diameter over transmitted wavelengths in the lowest transmission band is up to 85. The measured attenuation at 1 µm wavelength is below 0.1 dB/m and the bend loss below 0.2 dB/m at a bend radius smaller than 8 cm. Modal content of the multi-mode AR-HCF is characterized using the S2 imaging technique and seven LP-like modes in total are identified using a 23.6 meter fiber length. Multi-mode AR-HCFs for longer wavelengths are fabricated by scaling up the same design, extending the transmission window beyond 4 µm wavelength. Low-loss multi-mode AR-HCF could find applications in the delivery of high-power laser light with a medium beam quality, where higher coupling efficiency and laser damage threshold are expected.
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