Deformation-immunized optical deposition of graphene for ultrafast pulsed lasers
- Deformation-immunized optical deposition of graphene for ultrafast pulsed lasers
- 김형석; 조준현; 장성연; 송용원
- graphene; optical deposition; fiber laser; pulsed laser
- Issue Date
- Applied physics letters
- VOL 98, NO 2, 021104-1-021104-3
- We demonstrate deformation-suppressed optical deposition of graphene onto an optical fiber by
forming a graphene/polyvinyl acetate (PVAc) composite for ultrafast nonlinear photonics.With pure
graphene, its nonlinear operation threshold is elevated by the optical deposition that cannot
guarantee the intact two-dimensional nanoshape of graphene. The role of PVAc that provides
immunity to graphene against deleterious degradation of morphology and optical nonlinearity is
elucidated via electron microscope analysis, Raman characterization, and realizing passive
mode-locking operation of fiber lasers. Resultant center wavelength, spectral width, and repetition
rate of the laser pulses are 1572.6 nm, 0.6 nm, and 91.5 MHz, respectively.
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