Xinyi Zhao, Zuyao Liu, Yunqi Liu, C. Mou, Lei Shen, Lei Zhang, Jie Luo
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引用次数: 0
Abstract
We fabricated the helical long-period fiber grating in a six-mode fiber with CO2 laser. The grating realize mode conversion from LP01 mode to LP21 mode with high efficiency. The mode coupling and sensing characteristics are investigated.
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