Silver nanorods absorbers for Q-switched Nd:YAG ceramic laser

Guo

et al. 2018

Laser Phys. Lett.

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Ti 3 C 2 T x , a novel two-dimensional material in the MXene family, was successfully prepared and applied as a saturable absorber (SA) for solid-state pulsed lasers at 2 µm. Pumped by a 792 nm fiber-coupled laser diode, a compact passively Q-switched Tm,Gd:CaF 2 laser with a Ti 3 C 2 T x -SA was demonstrated and the pulse laser performances were presented and discussed in detail. This is the first presentation of Ti 3 C 2 T x as a SA for solid-state pulsed laser generation near 2 µm.

Section: Fabrication and Characteristics Of Ti 3 C 2 T X -Samentioning

confidence: 99%

A solid-state passively Q-switched Tm,Gd:CaF₂laser with a Ti₃C₂T_xMXene absorber near 2µm

Guo

et al. 2018

Laser Phys. Lett.

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“…Metal nanomaterials have also attracted increasing attention, particularly in conjunction with the mid-infrared domain. Unlike the conventional 2D materials, the longitudinal absorption peaks of the metal nanomaterials are decided by controlling the aspect ratio [29]. Furthermore, metal nanomaterials are easy to preserve, and have a wideband response ranging from the visible to mid-infrared region.…”

Section: Laser Physics Lettersmentioning

confidence: 99%

Efficient continuous-wave, broadly tunable and passive Q-switching lasers based on a Tm³⁺:CaF₂crystal

Liu

et al. 2018

Laser Phys. Lett.

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Laser operations in the continuous-wave as well as in the pulsed regime of a 4 at.% Tm 3+ :CaF 2 crystal are reported. For the continuous-wave operation, a maximum average output power of 1.15 W was achieved, and the corresponding slope efficiency was more than 64%. A continuous tuning range of about 160 nm from 1877-2036 nm was achieved using a birefringent filter. Using Argentum nanorods as a saturable absorber, the significant pulsed operation of a passively Q-switched Tm 3+ :CaF 2 laser was observed at 1935.4 nm for the first time, to the best of our knowledge. A maximum output power of 385 mW with 41.4 µJ pulse energy was obtained under an absorbed pump power of 2.04 W. The present results indicate that the Tm 3+ :CaF 2 lasers could be promising laser sources to operate in the eye-safe spectral region.

“…As known, saturable absorber (SA) was an indispensable component of a passively Q-switched laser. In the past, ion-doped crystals (Cr:YAG [26], etc), semiconductor SA mirrors (SESAMs) [27][28][29], single-walled carbon nanotubes (SWCNTs) [30][31][32], metal nanoparticles [33,34] and so on have been employed as SAs for generating passively Q-switched laser operations. Among them, passively Q-switched lasers based on ion-doped crystals exhibited high output power, narrow pulse width and large pulse energy.…”

Section: Introductionmentioning

confidence: 99%

“…But, their absorption efficiency and bandwidth were dependent on their diameters, which lead to a high threshold and low optical conversion efficiency. In addition, metal nanoparticles suffer from the influence of thermal condensation [33,34], which leads to the deviation of the surface plasmon resonance absorption peak. Recently, 2D materials including graphene [35][36][37][38][39], topological insulators [40][41][42], transition metal dichalcogenides [43][44][45][46][47] and black phosphorus [48][49][50][51] have significantly promoted the development of passively Q-switched fiber lasers due to their excellent optical and nonlinear absorption properties.…”

Section: Introductionmentioning

confidence: 99%

High-efficiency passively Q-switched neodymium-doped fiber laser operation at 1360.61 nm with bismuth selenide as saturable absorber

Yang

et al. 2018

Laser Phys.

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A high-efficiency Bi 2 Se 3 -based passively Q-switched Nd-doped fiber laser was demonstrated. The passively Q-switched operation produced a maximum average output power of 21.7 mW under a pulse repetition rate of 195.3 kHz, corresponding to a pulse energy of 111.2 nJ, which is much higher than the results obtained previously. Our results proved that CVD-Bi 2 Se 3 is an excellent candidate for demonstrating large-energy pulse operations. In addition, this is the first demonstration focusing on the application of 2D materials for obtaining pulse fiber laser operation within a 1.3 µm region.