Negative-index gratings formed by femtosecond laser overexposure and thermal regeneration

We demonstrate a method for the preparation of negative-index fibre Bragg gratings (FBGs) using 800 nm femtosecond laser overexposure and thermal regeneration. A positive-index type I-IR FBG was first inscribed in H(2)-free single-mode fibre using a femtosecond laser directed through a phase mask, a...

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Publicado no:Sci Rep
Main Authors: He, Jun, Wang, Yiping, Liao, Changrui, Wang, Chao, Liu, Shen, Yang, Kaiming, Wang, Ying, Yuan, Xiaocong, Wang, Guo Ping, Zhang, Wenjing
Formato: Artigo
Idioma:Inglês
Publicado em: Nature Publishing Group 2016
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Article
Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC4793244/
https://ncbi.nlm.nih.gov/pubmed/26979090
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/srep23379
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