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Spectral Characteristics of Square-Wave-Modulated Type II Long-Period Fiber Gratings Inscribed by a Femtosecond Laser

We study here the spectral characteristics of square-wave-modulated type II long-period fiber gratings (LPFGs) inscribed by a femtosecond laser. Both theoretical and experimental results indicate that higher-order harmonics refractive index (RI) modulation commonly exists together with the fundament...

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書誌詳細
出版年:Sensors (Basel)
主要な著者: Zhao, Xiaofan, Li, Hongye, Rao, Binyu, Wang, Meng, Wu, Baiyi, Wang, Zefeng
フォーマット: Artigo
言語:Inglês
出版事項: MDPI 2021
主題:
オンライン・アクセス:https://ncbi.nlm.nih.gov/pmc/articles/PMC8126127/
https://ncbi.nlm.nih.gov/pubmed/34068560
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.3390/s21093278
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