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We demonstrate the mode-locking operation in an all-polarization-maintaining (all-PM) erbium-doped fiber laser by exploiting graphene oxide saturable absorber for the first time. The self-started, environmentally stable laser directly generates linearly polarized soliton pulses of 502 fs duration at a repetition rate of 48.2 MHz with an extinction ratio of 21.3 dB. The optical spectrum centered at...
We proposed a novel meta-structure of gold/graphene trimers and realized ultrasfast and ultra-low power all-optical tunable plasmon-induced transparency around 1150 nm. The nonlinear susceptibility of graphene/ITO film was up to 2.90×10−5 esu.
Square pulse generation from mode-locked fiber laser has been theoretically and experimentally studied for a few years. The phenomenon was explained theoretically as so called “dissipative soliton resonance (DSR)” [1]. Most experimental work concentrated on 1.5μm wavelength, with a few on 1μm, and both could be operated in positive or negative dispersion regimes. Most of them adopted nonlinear polarization...
We observed dissipative soliton resonance in graphene oxide mode-locked Yb-doped fiber laser, which delivered square-shaped nanosecond pulses of 0.52ns∼60.8ns and single pulse energy of 137.1nJ at 1064.9nm. The 3dB-bandwidth of Lorentz-shaped spectrum was 0.19nm.
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