Ti<sub>2</sub>AlC-based saturable absorber for passive Q-switching of a fiber laser

Lee, Jinho; Kwon, Suhyoung

doi:10.1364/ome.9.002057

Cited by 55 publications

(16 citation statements)

References 65 publications

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“…and asymmetric environments, thus providing abundant relatively free-state electrons, which were responsible for the observed ultrahigh modulation depth and low saturation intensity. Besides, the nonsaturable losses (i.e., α NS * ) of 38.3 and 14.4% were achieved for Ti 3 AlC 2 QSs and Ti 3 C 2 QSs, which were lower than those reported previously. − Therefore, it was the quantum-sized nature and intrinsic characteristics of the as-produced QSs that determined the resulting NSA performances (e.g., ultrahigh modulation depth, low saturation intensity, and low nonsaturable loss). Table S2 lists the NSA performances of the as-produced QSs and the QSs from other works. − The Ti 3 AlC 2 QSs and Ti 3 C 2 QSs presented comparable saturation intensities, which were quite low compared to those reported previously, facilitating the ultralow power excitation of the NLO effects.…”

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confidence: 72%

Ti₃AlC₂ MAX and Ti₃C₂ MXene Quantum Sheets for Record-High Optical Nonlinearity

Chen

Sui

et al. 2022

J. Phys. Chem. Lett.

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Two-dimensional (2D) transition-metal carbides (MXenes) have attracted great interest owing to their unique structures and superior properties compared to those of traditional 2D materials. The transformation of 2D MXenes into sub-5-nm quantum sheets (QSs) is urgently required but rarely reported. Herein, the Ti 3 AlC 2 MAX and Ti 3 C 2 MXene QSs with monolayer structures and sub-5-nm lateral sizes are demonstrated. Exceptionally high yields (>15 wt %) are obtained through an all-physical top-down method. The QS dispersions present unique photoluminescence, and the QSs-poly(methyl methacrylate) (PMMA) hybrid thin films demonstrate remarkable nonlinear saturation absorption (NSA). Absolute modulation depths of 30.6 and 49.9% and saturation intensities of 1.16 and 1.25 MW cm −2 (i.e., 116 and 125 nJ cm −2 ) are achieved for Ti 3 AlC 2 QSs and Ti 3 C 2 QSs, respectively. Such recordhigh NSA performances of MXene QSs would boost the application of MAX/MXene materials in nonlinear optics. Letter pubs.acs.org/JPCL

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confidence: 72%

Ti₃AlC₂ MAX and Ti₃C₂ MXene Quantum Sheets for Record-High Optical Nonlinearity

Chen

Sui

et al. 2022

J. Phys. Chem. Lett.

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“…The nonlinear transmittance of the Ag nanoplates SA is shown in Figure 6, as a function of the incident fluence. Fitted with the saturable absorption formula [27], the saturation incident fluence and the modulation depth are estimated to be ~106.36 μJ/cm 2 and ~5.8%, respectively.…”

Section: Fabrication and Characterization Of Ag Nanoplates Samentioning

confidence: 99%

“…In recent years, the investigation of novel high-performance SAs for pulsed laser systems has been a rich and fascinating subject in the field of fiber laser physics, leading to an outburst of publications realized with Q-switched and mode-locked fiber lasers. To date, numerous nanomaterials have been demonstrated as efficient saturable absorption materials for SAs in Q-switched fiber lasers, such as carbon nanotubes [8][9][10], graphene [11][12][13][14], transition-metal dichalcogenides [15][16][17][18], topological insulators [19][20][21], black phosphorus [22][23][24], quantum dots [25,26], MXenes [27], filled skutterudites [28], and transition metal oxides [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Passively Q-switched Yb-doped all-fiber laser based on Ag nanoplates as saturable absorber

Wang

et al. 2020

Nanophotonics

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We report on a Q-switched Yb-doped all-fiber laser based on a solution-processed Ag nanoplates saturable absorber. Optical deposition procedure is implemented to transfer the Ag nanoplates onto the fiber core area through the thermal effect. The saturable absorber is sandwiched between two fiber connectors, providing simplicity, flexibility, and easy integration into the laser oscillator. The modulation depth and saturation incident fluence are measured to be ~5.8% and ~106.36 μJ/cm2 at 1-μm region, respectively. Self-started stable Q-switched operation is achieved for a threshold pump power of 180 mW. The repetition rates of the pulse trains range from 66.6 to 184.8 kHz when the pump power scales from 210 to 600 mW. The maximum average output power is 10.77 mW, corresponding to the single-pulse energy of 58.3 nJ and minimum pulse duration of ~1.01 μs. To the best of our knowledge, it is the first time that the Ag nanoplates saturable absorbers are utilized in the 1-μm Yb-doped Q-switched fiber laser.

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“…Several works demonstrate the use of MAX phases as SAs in generating pulses in fiber lasers. For instance, Lee et al demonstrated the use of a titanium aluminum carbide (Ti 2 AlC) SA to generate Q-switched pulses with a maximum pulse energy of 22.58 nJ in an erbium-doped fiber laser (EDFL) cavity 56 . Jafry et al also demonstrated an ultrashort pulse generation in an EDFL cavity using a Ti 3 AlC 2 -PVA SA.…”

Section: Introductionmentioning

confidence: 99%

2 μm passively mode-locked thulium-doped fiber lasers with Ta2AlC-deposited tapered and side-polished fibers

Ahmad

Azri

Ramli

et al. 2021

Sci Rep

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In this work, mode-locked thulium-doped fiber lasers operating in the 2 µm wavelength region were demonstrated using tantalum aluminum carbide (Ta2AlC)-based saturable absorbers (SAs) utilizing the evanescent wave interaction. The Ta2AlC MAX Phase was prepared by dissolving the Ta2AlC powder in isopropyl alcohol and then deposited onto three different evanescent field-based devices, which were the tapered fiber, side-polished fiber, and arc-shaped fiber. Flame-brushing and wheel-polishing techniques were used to fabricate the tapered and arc-shaped fibers, respectively, while the side-polished fiber was purchased commercially. All three SA devices generated stable mode-locked pulses at center wavelengths of 1937, 1931, and 1929 nm for the tapered, side-polished, and arc-shaped fibers. The frequency of the mode-locked pulses was 10.73 MHz for the tapered fiber, 9.58 MHz for the side-polished fiber, and 10.16 MHz for the arc-shaped fiber. The measured pulse widths were 1.678, 1.734, and 1.817 ps for each of the three SA devices. The long-term stability of the mode-locked lasers was tested for each configuration over a 2-h duration. The lasers also showed little to no fluctuations in the center wavelengths and the peak optical intensities, demonstrating a reliable, ultrafast laser system.

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Ti₂AlC-based saturable absorber for passive Q-switching of a fiber laser

Cited by 55 publications

References 65 publications

Ti₃AlC₂ MAX and Ti₃C₂ MXene Quantum Sheets for Record-High Optical Nonlinearity

Ti₃AlC₂ MAX and Ti₃C₂ MXene Quantum Sheets for Record-High Optical Nonlinearity

Passively Q-switched Yb-doped all-fiber laser based on Ag nanoplates as saturable absorber

2 μm passively mode-locked thulium-doped fiber lasers with Ta2AlC-deposited tapered and side-polished fibers

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Ti2AlC-based saturable absorber for passive Q-switching of a fiber laser

Cited by 55 publications

References 65 publications

Ti3AlC2 MAX and Ti3C2 MXene Quantum Sheets for Record-High Optical Nonlinearity

Ti3AlC2 MAX and Ti3C2 MXene Quantum Sheets for Record-High Optical Nonlinearity

Passively Q-switched Yb-doped all-fiber laser based on Ag nanoplates as saturable absorber

2 μm passively mode-locked thulium-doped fiber lasers with Ta2AlC-deposited tapered and side-polished fibers

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Ti₂AlC-based saturable absorber for passive Q-switching of a fiber laser

Ti₃AlC₂ MAX and Ti₃C₂ MXene Quantum Sheets for Record-High Optical Nonlinearity

Ti₃AlC₂ MAX and Ti₃C₂ MXene Quantum Sheets for Record-High Optical Nonlinearity