Molybdenum Disulfide Film Saturable Absorber Based on Sol–Gel Glass and Spin-Coating Used in High-Power Q-Switched Nd:YAG Laser

Wang, Jiang; Chen, Zhendong; Wang, Yonggang; Wang, Taijin; Chen, Guanghua; Wang, Yishan; Ren, Wei; Lü, Li

doi:10.1021/acsami.9b14494

Cited by 16 publications

(9 citation statements)

References 38 publications

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“…Currently, SA mirrors fabricated from bulk crystals and commercial semiconductors have become prevalent in the generation of pulse lasers via Q-switching and mode-locking. 4 However, these traditional SA materials cannot entirely satisfy the current growing requirements because of their high cost, complex fabrication, 15 relatively low NLO susceptibility, and limited operation bandwidth. 4 Therefore, discovering new materials with low cost, ultrafast broadband optical response, and large optical nonlinearities is significant.…”

Section: ■ Introductionmentioning

confidence: 99%

Antimony Sulfide Nanosheets with Size-Dependent Nonlinear Optical Properties for Q-Switched Pulse Applications

Zhao

Wang

et al. 2021

ACS Appl. Nano Mater.

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Two-dimensional materials are among the most efficient optical materials for Q-switched pulse applications, rising to unprecedented heights. Although the exploration of 2D nanomaterials has attracted strong interest, the results from current studies remain questionable, requiring further achievements in tailored control of their properties. In this work, antimony sulfide (Sb2S3) nanosheets are prepared by liquid-phase exfoliation, and nanosheets of different sizes are obtained by regulating ultrasonication parameters and centrifugation speed. The nonlinear optical properties of Sb2S3 nanosheets are investigated using the Z-scan technique for the first time, which exhibit excellent saturable absorption and thereby promising potential for saturable absorber applications. Among the different sizes of Sb2S3 nanosheets, the smaller-sized nanosheets exhibit better nonlinear optical properties, which is ascribed to the higher proportion of surfaces and edges. Finally, stable laser pulses with peak power as high as 2.68 W are readily generated at the wavelength of 1064 nm. This work opens an innovative avenue toward nonlinear optical devices based on Sb2S3 and provides reasonable regulation of 2D saturable absorbers.

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Section: ■ Introductionmentioning

confidence: 99%

Antimony Sulfide Nanosheets with Size-Dependent Nonlinear Optical Properties for Q-Switched Pulse Applications

Zhao

Wang

et al. 2021

ACS Appl. Nano Mater.

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“…This method effectively solves the problem of material shedding and aging if the 2D material on the DF is directly exposed to the air and prevents the laser degradation caused thereby. In addition, our recent research found it has been confirmed that the component of sol–gel glass is amorphous silica, which has a thermal conductivity and refractive index similar to those of optical fibers, which can prevent materials in the air from aging or shedding and effectively increase damage threshold and long-term stability of the laser. , …”

Section: Introductionmentioning

confidence: 90%

“…In addition, our recent research found it has been confirmed that the component of sol−gel glass is amorphous silica, which has a thermal conductivity and refractive index similar to those of optical fibers, which can prevent materials in the air from aging or shedding and effectively increase damage threshold and long-term stability of the laser. 32,33 The optical properties of the SA are analyzed by a nonlinear transmission measurement. The results show that the saturation intensity and MD are 155.5 MW/cm 2 and 15.45% at 1.5 μm and 147.1 MW/cm 2 and 19.53% at 1.03 μm, respectively.…”

Section: Introductionmentioning

confidence: 99%

Molybdenum Carbide Buried in D-Shaped Fibers as a Novel Saturable Absorber Device for Ultrafast Photonics Applications

Shang

Wang

et al. 2021

ACS Appl. Mater. Interfaces

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Study of nonlinear laser–matter interactions in 2D materials has promoted development of photonics applications. As a typical MXene material, molybdenum carbide (Mo2C) has attracted much attention because of its graphene-like structure. Here, a type of D-shaped fiber (DF)-buried Mo2C saturable absorber (SA) fabricated by magnetron-sputtering deposition (MSD) and sol–gel technique is reported. The Mo2C material was buried between the bottom DF and the upper amorphous silica fabricated by sol–gel technology. Therefore, the DF-based SA effectively solves the problem of material shedding and aging, thus improving the stability and damage threshold of the fiber laser. Application of the SA in erbium-doped fiber laser and stable passive Q-switched operation with a maximum pulse energy of 430.47 nJ is realized. By adjusting the polarization state and pump power, high-power mode-locked pulses are generated with a pulse duration and output power of 199 fs and 54.13 mW, respectively. Further, bound-state soliton pulses are obtained with a pulse width of 312 fs and soliton interval of 1.26 ps for the first time based on MXene materials. Moreover, by application of the SA in ytterbium-doped fiber lasers, a stable dissipative soliton mode-locked pulse is obtained with a pulse width of 23 ps. These results indicate that the DF-based buried Mo2C as a novel SA provides a reliable method for all-fiber and multifunctional high-power ultrafast laser.

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“…Currently, a lot of 2D materials such as graphene, transition-metal dichalcogenides, − MXene, , and perovskite materials , were employed as SA for the generation of ultrafast laser pulses. However, most of them have achieved either mode-locking − or Q-switching operation. − Only a few SAs are capable of generating mode-locked, Q-switched, and harmonic mode-locked pulses altogether for a specific waveband. − Additionally, most 2D SAs demonstrated pulse laser generation in a single − or two wavelength − regimes. Meanwhile, studies on the SAs generating pulsed laser in three different wavelengths (1, 1.5, and 2 μm), covering the near-infrared to the mid-infrared regime, are still quite inadequate.…”

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Gallium Sulfide as a Novel Saturable Absorber for Broadband Ultrafast Photonics Applications

Ahmed

Qiao

Cheng

et al. 2021

ACS Appl. Mater. Interfaces

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Two-dimensional (2D) gallium sulfide (GaS) offers a plethora of exceptional electrical and optical properties, allowing it to be used in a wide range of applications, including photodetectors, hydrogen generation, and nonlinear optical devices. In this paper, ultrathin 2D GaS nanosheets are synthesized using the liquid-phase exfoliation method, and the structure, morphology, and chemical composition of the as-prepared nanosheets are extensively investigated. After depositing 2D GaS nanosheets on side polished fibers, successful saturable absorbers (SAs) are fabricated for the first time. The realized modulation depths are 10 and 5.3% at 1 and 1.5 μm, respectively, indicating the wideband saturable absorption performance of the prepared SAs. By integrating GaS-SAs into three different wavelength-based fiber laser cavities, stable mode-locked pulses are achieved, having pulse durations of 46.22 ps (1 μm), 614 fs (1.5 μm), and 1.02 ps (2 μm), respectively. Additionally, different orders of harmonic mode-locked pulses with the highest repetition rate of 0.55 GHz (45th order) and Q-switched pulses with the shortest pulse duration of 2.2 μs are obtained in the telecommunication waveband. These findings suggest that 2D GaS has a lot of potential for broadband ultrafast photonics in nonlinear photonics devices.

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Molybdenum Disulfide Film Saturable Absorber Based on Sol–Gel Glass and Spin-Coating Used in High-Power Q-Switched Nd:YAG Laser

Cited by 16 publications

References 38 publications

Antimony Sulfide Nanosheets with Size-Dependent Nonlinear Optical Properties for Q-Switched Pulse Applications

Antimony Sulfide Nanosheets with Size-Dependent Nonlinear Optical Properties for Q-Switched Pulse Applications

Molybdenum Carbide Buried in D-Shaped Fibers as a Novel Saturable Absorber Device for Ultrafast Photonics Applications

Two-Dimensional Gallium Sulfide as a Novel Saturable Absorber for Broadband Ultrafast Photonics Applications

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