Fabrication of rGO-GO Long Period Fiber Grating Using Laser Reduction Method
Fabrication of rGO-GO Long Period Fiber Grating Using Laser Reduction Method
复制标题
激光还原法制作rGO-GO长周期光纤光栅
DOI：
10.1109/jphot.2017.2763162
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发表时间：
2017
影响因子：
2.4
通讯作者：
Chen Zhe
中科院分区：
文献类型：
--
作者：
Chen Liheng;Yu Jianhui;Guan Heyuan;Zhan Tingting;Rong Tianjie;Kong Yujia;Zhu Wenguo;Lu Huihui;Zhang Jun;Chen Zhe
采用激光还原技术制作了一种新型的长周期光纤光栅（LPFG），其周期为一侧抛光光纤上的一段氧化石墨烯（GO）和还原氧化石墨烯（rGO）薄膜。拉曼光谱、X射线衍射和傅里叶变换红外光谱表明，仅84 mW的低功率CW 405 nm激光足以通过将GO膜激光还原为rGO膜来制备该LPFG。实验结果表明，对于周期为500 μm的rGO-GO长周期光纤光栅，可以获得15.3dB的消光比。此外，还发现长周期光纤光栅的长度可以对凹陷的消光比、半峰全宽和谐振波长进行光学调谐。这项工作为实现基于rGO-GO微米/纳米结构的新型光纤器件开辟了一条道路。
A laser-reduction technique is investigated to fabricate a novel long period fiber grating (LPFG), whose period is a section of graphene oxide (GO) and reduced graphene oxide (rGO) films on a side polished fiber. Raman spectra, X-ray diffraction, and Fourier transform infrared spectra show that a CW 405 nm laser with low power of only 84 mW is sufficient to fabricate this LPFG by laser-reducing the GO film to rGO film. It is demonstrated that the dip extinction ratio of 15.3 dB can be achieved for such rGO-GO LPFG with a 500 μm period. In addition, it is found that the extinction ratio, full width at half maximum and resonant wavelength of the dip can be optically tuned by the length of LPFG. The work opens a way to implement novel fiber devices based on rGO-GO micro/nanostructure.