Side polished fiber with coated graphene sheet and its control characteristic of violet light
Side polished fiber with coated graphene sheet and its control characteristic of violet light
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涂覆石墨烯片的侧面抛光光纤及其紫光控制特性
DOI：
10.1364/ome.6.002088
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发表时间：
2016
影响因子：
2.8
通讯作者：
Lu Huihui
中科院分区：
文献类型：
--
作者：
Wang Yiting;Liu Huaan;Wang Yuan;Qiu Weiqia;Zhang Jun;Tian Zhengwen;Yu Jianhui;Tang Jieyuan;Luo Yunhan;Guan Heyuan;Chen Zhe;Lu Huihui
在抛光区域放置石墨烯薄片的侧面抛光光纤(SPF)可以增强石墨烯与光纤的强渐逝场之间的相互作用。石墨烯薄膜由于其可饱和的吸收特性而被利用。采用紫外光(λ=45 0 nm)作为泵浦光源，对石墨烯薄膜的光传输功率(λ=15 5 0 nm)的响应特性进行了研究。实验结果表明，不同的泵浦功率可以改变SPF的光传输功率。当泵浦光功率从0 mW变化到11 mW时，SPF的光传输功率变化约3.4d B。在泵浦功率增加的过程中，相对透过率与紫外光功率的线性相关为97.1%，灵敏度为0.29 dB/mW，而在泵浦功率降低的过程中，相对透过率与紫外光功率的线性相关为96.5%，灵敏度为0.25 dB/mW。这些结果表明，紫光(毫瓦量级)可以控制涂有石墨烯薄膜的SPF的光透过率，这意味着该器件有可能作为所有的光学可控器件应用。
Side-polished fiber (SPF) with a graphene sheet on a polished area can enhance the interaction between graphene and a strong evanescent field of optical fiber. Graphene sheet is utilized due to its saturable absorption property. To investigate the response characteristics of the optical transmitted power (λ = 1550 nm) in the SPF, violet light (λ = 450 nm) as pump source is employed to illuminate the graphene sheet. Experimental results reveal that different pump power can change the optical transmitted power of the SPF. When the pump light changes from 0 mW to 11 mW, the optical transmitted power of the SPF varies ~3.4 dB. In this increasing process of the pump power, the linear correlation between relative transmitted power and violet power is ~97.1% with the sensitivity of ~0.29 dB/mW; while the linear correlation is ~96.5% with sensitivity of ~0.25 dB/mW in the decreasing process of the pump power. These results indicate that violet light (order of mW) can manipulate the optical transmitted power of the SPF coated with graphene sheet, which signifies the device can potentially be applied as all optically controllable devices.