High stable polarization-insensitive Er-doped Q-switched fiber laser with iron oxide nanoparticles as saturable absorber

Pang, Lihui; Song, Chenghua; Lv, Ruidong; Chen, Zhendong; Wu, Rongqian; Lv, Yi; Liu, Wenjun

doi:10.1016/j.optlastec.2019.01.011

Cited by 14 publications

(3 citation statements)

References 44 publications

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“…While the depletion of the ground state population leads to a decrease in photon absorption which increases the nonlinear transmittance under high laser intensity, the local electric field induced by plasmon resonance could also enhance the saturable absorption by increasing the absorption cross section of the ground state [35]. Laser pulse shaping is an important application for laser systems, which can be achieved using the nonlinear saturable absorption properties of low-dimensional materials [46][47][48]. Motivated by promising broadband saturable absorption of Ti 2 CT x MXene, we next evaluated its performance as a saturable absorber for ultrafast laser pulse generation.…”

Section: Resultsmentioning

confidence: 99%

Unleashing the potential of Ti ₂ CT _x MXene as a pulse modulator for mid-infrared fiber lasers

et al. 2019

2D Mater.

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The strong light–matter interaction in two dimensional (2D) materials portends an untapped potential for fiber lasers in the long sought-after terahertz to mid-infrared spectral range. Here, the broadband nonlinear optical properties of zero-gap 2D Ti2CTx MXene—a class of 2D transition metal carbides that exhibit high laser damage threshold—is discussed. Using the open aperture Z-scan method, for the first time the broadband saturable absorption properties of Ti2CTx in the 800–1560 nm spectral range are demonstrated. Specifically, it is shown that the high absorption and low saturation intensity of Ti2CTx make it an ideal saturable absorber for mode-locked fiber lasers operating at 1565 and 1051 nm, which exhibited pulse widths of 5.3 ps and 164 ps, respectively. Additionally, a Ti2CTx saturable absorber was used as a Q-switcher to realize a pulsed fiber laser operating at 2.8 µm, which showed excellent nonlinear absorption performance in the mid-infrared regime. This study significantly broadens the scope of materials available for non-linear optical applications in the near and mid-infrared regimes.

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Section: Resultsmentioning

confidence: 99%

Unleashing the potential of Ti ₂ CT _x MXene as a pulse modulator for mid-infrared fiber lasers

et al. 2019

2D Mater.

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“…Furthermore, the development of optofluidic , devices as liquid-filled hollow-core photonic crystal fibers for sensing, and based on colloids, increasing spectrometer efficiency and, for nanoparticle characterization, enabled new ferrofluid applications, such as optical magnetometers , and magnetic field sensors, , for characterization of optical forces . Several studies allowed the development of tunable optical switches, optical limiters, and saturable absorbers for lasers , based on magnetic fluids, also taking advantage of the controllability of the fluid by an external magnetic field to actively control resonances in a microring resonator, all-optical tuning of a optofluidic ring resonator as well as controllable magnetofluidic laser scattering, and tunable colloidal photonic crystals …”

Section: Introductionmentioning

confidence: 99%

Influence of Magnetic Field on the Two-Photon Absorption and Hyper-Rayleigh Scattering of Manganese–Zinc Ferrite Nanoparticles

et al. 2020

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Magnetic nanoparticles based on manganese–zinc ferrite presenting spherical and cubic shapes, verified by small-angle X-rays scattering, were studied by means of the hyper-Rayleigh scattering, the Z-Scan technique in the open-aperture configuration, and a spectrally resolved femtosecond transient absorption setup. Hyper-Rayleigh scattering and Z-Scan experiments were performed with applied magnetic field parallel to the laser polarization state and in the perpendicular direction. The hyperpolarizability of spherical nanoparticles was greater than the cubic ones due to the higher volume of spherical nanoparticles and, therefore, the increased influence of the spin-disoriented layer at the surface on cubic nanoparticles, resulting in a smaller orientational average contribution to the hyperpolarizability. The two-photon absorption cross section was the same for both samples, since the basic constituents are the same and the light absorption is not influenced by the surface anisotropy present on magnetic nanoparticles. For both nanoparticles, the measured optical second harmonic and the nonlinear absorption increased during experiments performed in the presence of external field in the parallel configuration, while a decrease was verified for experiments in the perpendicular case, which demonstrates a crystalline anisotropy on the nonlinear optical properties. Transient absorption measurements revealed an ultrafast relaxation process containing at least two separated dynamical processes, the faster with characteristic time below 1 ps and a longer one, much higher than 100 ps.

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“…Uma vez que coloides magnéticos combinam as propriedades de fluidez do líquido carregador e as propriedades magnéticas das nanopartículas, o uso de ferrofluidos em dispositivos optofluídicos tem promovido grandes inovações, como por exemplo o desenvolvimento de fibrasópticas revestidas por ferrofluidos [12,13], cristais fotônicos coloidais [14] e microrressonadores de silício recobertos com coloides magnéticos [15,16], casos em que as propriedades magnéticas das nanopartículas exercem um papel importante no controle das propriedadesópticas dos dispositivos. Além disso, magnetômetrosópticos [17,18] e sensores de campo magnético [19,20] baseados em nanopartículas magnéticas foram desenvolvidos, além de chavesópticas [21] reconfiguráveis [22] e ajustáveis [23], limitadoresópticos [24,25] e absorvedores saturáveis [26,27].…”

Section: Introductionunclassified

Propriedades ópticas não lineares de segunda e terceira ordem de coloides magnéticos

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Nesse trabalho foram estudadas propriedadesópticas não lineares de segunda e terceira ordens de nanopartículas magnéticas monocristalinas, dispersas em solução coloidal. Foram investigadas soluções comerciais de partículas baseadas em magnetita, Fe 3 O 4 , bem como formadas por ferrite de manganês e zinco, Mn 0,5 Zn 0,5 Fe 2 O 4 , sintetizadas no Instituto de Física da Universidade de São Paulo em colaboração com pesquisadores da Charotar Palavras chave: Ferrofluidos, espalhamento hiper Rayleigh, hiperpolarizabilidade, varredura Z, absorção de dois fótons

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High stable polarization-insensitive Er-doped Q-switched fiber laser with iron oxide nanoparticles as saturable absorber

Cited by 14 publications

References 44 publications

Unleashing the potential of Ti ₂ CT _x MXene as a pulse modulator for mid-infrared fiber lasers

Unleashing the potential of Ti ₂ CT _x MXene as a pulse modulator for mid-infrared fiber lasers

Influence of Magnetic Field on the Two-Photon Absorption and Hyper-Rayleigh Scattering of Manganese–Zinc Ferrite Nanoparticles

Propriedades ópticas não lineares de segunda e terceira ordem de coloides magnéticos

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High stable polarization-insensitive Er-doped Q-switched fiber laser with iron oxide nanoparticles as saturable absorber

Cited by 14 publications

References 44 publications

Unleashing the potential of Ti 2 CT x MXene as a pulse modulator for mid-infrared fiber lasers

Unleashing the potential of Ti 2 CT x MXene as a pulse modulator for mid-infrared fiber lasers

Influence of Magnetic Field on the Two-Photon Absorption and Hyper-Rayleigh Scattering of Manganese–Zinc Ferrite Nanoparticles

Propriedades ópticas não lineares de segunda e terceira ordem de coloides magnéticos

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Unleashing the potential of Ti ₂ CT _x MXene as a pulse modulator for mid-infrared fiber lasers

Unleashing the potential of Ti ₂ CT _x MXene as a pulse modulator for mid-infrared fiber lasers