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Effect of femtosecond photo-treatment on inscription of fiber Bragg gratings

机译:飞秒光处理对光纤布拉格光栅刻写的影响

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摘要

Pre- and post-treatment of optical fibers is typically used to improve the fiber Bragg grating (FBG) fabrication process. Here, we investigate experimentally the effects of femtosecond photo-treatment on the ability to inscribe and erase FBGs in standard, non-sensitized, silica SMF fibers. We observe "immunity" to inscription after applying a suitable pre-treatment to the fiber and full "erasure" of the FGB after applying a suitable post-treatment. We characterize the required photo-treatment parameters and compare to FBG inscription on an untreated fiber. We believe that pre/post-photo-treatment of the fibers with fs pulses may have practical advantages such as modifying standard grating structures or observing ultrafast transient effects more clearly. (C) 2016 Optical Society of America
机译:光纤的预处理和后处理通常用于改进光纤布拉格光栅(FBG)的制造过程。在这里,我们通过实验研究飞秒光处理对标准,不敏感的二氧化硅SMF光纤中FBG的写入和擦除能力的影响。在对纤维进行适当的预处理之后,我们观察到对铭文的“免疫力”,而在进行适当的后处理之后,FGB的完全“擦除”。我们表征所需的光处理参数,并与未经处理的光纤上的FBG铭文进行比较。我们认为,使用fs脉冲对光纤进行前/后光处理可能具有实际优势,例如修改标准光栅结构或更清晰地观察超快速瞬态效果。 (C)2016美国眼镜学会

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