All-optically controlled slow and fast lights in graphene-coated tilted fiber Bragg grating

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2019-01-01
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en
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APPLIED PHYSICS EXPRESS, Volume 12, issue 7
Abstract
We demonstrate all-optically controlled slow and fast lights in tilted fiber Bragg grating (TFBG) with a graphene film. By employing graphene's efficient photothermal effect, the global resonances in TFBG are shifted with slopes of 1.1 and 1.01 pm mW-1 for cladding and core modes, respectively. This enables changes of group delay and thus supports tunable fast and slow lights from -156 to 20 ps in cladding modes and up to 400 ps in core modes. Our demonstration with an all-in-fiber scheme possesses advantages, such as low-cost manufacture, simple and compact configuration, and multi-wavelength operation.
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Wang , Y , Jiang , B , Das , S , Zhao , Q , Gan , X & Zhao , J 2019 , ' All-optically controlled slow and fast lights in graphene-coated tilted fiber Bragg grating ' , Applied Physics Express , vol. 12 , no. 7 , 072010 . https://doi.org/10.7567/1882-0786/ab281b