期刊
APPLIED PHYSICS LETTERS
卷 108, 期 17, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4947577
关键词
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资金
- National Natural Science Foundation of China [61405161, 11404264, 61377035]
- 973 Program [2012CB921900]
- Fundamental Research Funds for the Central Universities [3102014JCQ01101, 3102014JCQ01085]
We demonstrate an efficient all-optical control of microfiber resonator assisted by graphene's photothermal effect. Wrapping graphene onto a microfiber resonator, the light-graphene interaction can be strongly enhanced via the resonantly circulating light, which enables a significant modulation of the resonance with a resonant wavelength shift rate of 71 pm/mW when pumped by a 1540 nm laser. The optically controlled resonator enables the implementation of low threshold optical bistability and switching with an extinction ratio exceeding 13 dB. The thin and compact structure promises a fast response speed of the control, with a rise (fall) time of 294.7 mu s (212.2 mu s) following the 10%-90% rule. The proposed device, with the advantages of compact structure, all-optical control, and low power acquirement, offers great potential in the miniaturization of active in-fiber photonic devices. Published by AIP Publishing.
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