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Few‐Layer Phosphorene‐Decorated Microfiber for All‐Optical Thresholding and Optical Modulation
Author(s) -
Zheng Jilin,
Tang Xian,
Yang Zhenghua,
Liang Zhiming,
Chen Yunxiang,
Wang Ke,
Song Yufeng,
Zhang Ying,
Ji Jianhua,
Liu Yong,
Fan Dianyuan,
Zhang Han
Publication year - 2017
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201700026
Subject(s) - phosphorene , materials science , microfiber , optoelectronics , modulation (music) , signal (programming language) , optical modulator , optics , optical communication , band gap , phase modulation , physics , computer science , phase noise , acoustics , composite material , programming language
Phosphorene, mono/few‐layered black phosphorous with advantages of tunable energy bandgaps and strong light–matter interaction, is fabricated by electrochemical intercalation with large area (≈3 µm) and controllable thickness (mainly four layers). Thanks to the direct gap and resonant absorption of four‐layer phosphorene at the telecommunication band, all‐optical thresholding and optical modulation are demonstrated for optical communications by using few‐layer phosphorene‐decorated microfibers. This device is experimentally verified as an efficient noise suppressor that can enhance the signal‐to‐noise ratio and reshape the deteriorated signal pulse, and also as an optical modulator that can switch the signal on/off by pumping light. The findings, as the first prototypic device of all‐optical thresholding and optical modulation, might facilitate the development of phosphorene‐based optical communication technologies.