Premium
Graphene filled optical fiber Fabry‐Pérot cavity tunable filter
Author(s) -
Li Lijun,
Shi Zhihui,
Liu Yinming,
Liu Qian,
Ma Yanhua,
Xu Tianzong,
Sun Jianhong
Publication year - 2019
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31926
Subject(s) - materials science , fabry–pérot interferometer , graphene , refractive index , wavelength , optical power , optics , optoelectronics , interference (communication) , filter (signal processing) , optical fiber , fiber , composite material , telecommunications , laser , nanotechnology , channel (broadcasting) , physics , computer science , computer vision
Before saturated absorption, graphene possesses optical nonlinear refractive index, which is a photoinduced refractive index effect. Taking advantage of this effect, a wavelength tunable filter is realized based on a graphene filled all optical fiber Fabry‐Pérot microcavity. Experimental results show that the interference wavelength of the filter exhibits linear red‐shift with the increase of the tunning optical power and tunning efficiency increases with the increase of cavity length and filled graphene thickness. In this study, the maximum wavelength vs power tunning efficiency can get 66 pm/mW. This filter has the advantages of high tunning efficiency, simple structure, antienvironmental interference good mechanical performance, and repeatability.