In-fiber photoelectric device based on graphene-coated tilted fiber grating

作     者：Biqiang Jiang Yueguo Hou Jiexing Wu Yuxin Ma Xuetao Gan Jianlin Zhao Biqiang Jiang;Yueguo Hou;Jiexing Wu;Yuxin Ma;Xuetao Gan;Jianlin Zhao

作者机构：Key Laboratory of Light Field Manipulation and Information AcquisitionMinistry of Industry and Information Technologyand Shaanxi Basic Discipline(Liquid Physics)Research CenterSchool of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi’an 710129China 

出 版 物：《光电科学(英文)》 (Opto-Electronic Science)

年 卷 期：2023年第2卷第6期

页      面：22-31页

学科分类：070207[理学-光学] 07[理学] 0702[理学-物理学] 

基　　金：We are grateful for financial supports from National Natural Science Foundation of China(Grant No.61975166) Key Research and Development Program(Grant No.2022YFA1404800) 

主　　题：tilted fiber grating photoelectric device graphene photoelectric conversion thermo-optic switching 

摘      要：Graphene and related two-dimensional materials have attracted great research interests due to prominently optical and electrical properties and flexibility in integration with versatile photonic ***,we report an in-fiber photoelec-tric device by wrapping a few-layer graphene and bonding a pair of electrodes onto a tilted fiber Bragg grating(TFBG)for photoelectric and electric-induced thermo-optic *** transmitted spectrum from this device consists of a dense comb of narrowband resonances that provides an observable window to sense the photocurrent and the electrical injection in the graphene *** device has a wavelength-sensitive photoresponse with responsivity up to 11.4 A/W,allowing the spectrum analysis by real-time monitoring of photocurrent *** on the thermal-optic effect of electrical injection,the graphene layer is energized to produce a global red-shift of the transmission spectrum of the TF-BG,with a high sensitivity approaching 2.167×10^(4)nm/A^(2).The in-fiber photoelectric device,therefore as a powerful tool,could be widely available as off-the-shelf product for photodetection,spectrometer and current sensor.