1-, 1.5-, and 2-μm Fiber Lasers Q-Switched by a Broadband Few-Layer MoS<sub>2</sub> Saturable Absorber

Luo, Zhengqian; Huang, You; Zhong, Min; Li, Yingyue; Wu, Jianyu; Xu, Bin; Xu, Huiying; Caï, Zhiping; Peng, Jian; Weng, Jian

doi:10.1109/jlt.2014.2362147

Cited by 335 publications

(148 citation statements)

References 60 publications

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“…4(b), which gives a signal-to-noise ratio of around 45 dB for the generated peaks. This shows that the output pulses are highly stable [37] and comparable to those obtained using other types of SAs in similar configurations [1,38,39] . Furthermore, expanding the frequency span until 1 MHz, as shown as the inset of Fig.…”

supporting

confidence: 79%

“…Table 1 shows the comparison between the reported results of this work with previously published results of similar systems using different SAs with the gain medium of a YDF. It can be seen that barring the graphene-based SA [41] , the proposed MoSSe-based SA performs comparably against other SA types, including those fabricated from TIs [42] and other TMDs [1,33] . This work proves the capability of the MoSSe-based SA to generate Q-switched outputs in the 1000 nm region and also opens the possibility for a similar laser operating in the mode-locked regime by modifying sufficient parameters, such as the losses in the cavity and the SA's modulation depth.…”

mentioning

confidence: 97%

“…Fiber lasers capable of passively generating Q-switched pulses are the focal point of substantial research efforts due to their wide range of applications, including range finding, material processing, and optical communication [1] . Q-switching in fiber lasers can be achieved passively through the use of saturable absorbers (SAs), including semiconductor SA mirrors [2,3] and transition-metal-doped crystals [4] , as well as graphene, carbon nanotubes (CNTs), and their derivatives [5][6][7] .…”

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confidence: 99%

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Generation of passively Q-switched fiber laser at 1 μm by using MoSSe as a saturable absorber

et al. 2017

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Passively Q-switched ytterbium-doped fiber lasers (YDFLs) incorporating a molybdenum sulfide selenide (MoSSe)-based saturable absorber (SA) are demonstrated. The modulation depth and saturation intensity of the MoSSe-based SA are measured to be approximately 25.0% and 0.002 MW∕cm 2 , respectively, using the twin detector technique. The YDFL's output has a center wavelength of 1038.5 nm with a top pulse width and energy of 1.2 μs and 18.9 nJ, respectively, at a pump power of 333 mW. The MoSSe-based SA has a good linear optical response, providing significant opportunity for use in applications over an ultra-broadband spectrum, particularly spectroscopy and biomedical diagnostics.

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confidence: 79%

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confidence: 97%

mentioning

confidence: 99%

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Generation of passively Q-switched fiber laser at 1 μm by using MoSSe as a saturable absorber

et al. 2017

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“…MoS 2 manifests superior saturable-absorption properties, while its nonlinear optical response is stronger than that of graphene [7,8]. As a result, MoS 2 have been widely studied for the photonics applications such as Q-switching and mode-locking [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Dual-wavelength Q-switched pulse generation using D-fibre and MoS2 saturable absorber

Jaddoa¹,

Odah²,

Ahmad³

et al. 2018

Ukr. J. Phys. Opt.

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Abstract.We have demonstrated a dual-wavelength Q-switched generation of erbium-doped fibre laser, which is achieved using a D-fibre and several layers of molybdenum disulfide as a saturable absorber. Bulk MoS 2 has been processed using a liquid-phase exfoliation to obtain a layered structure. To provide a thin-film structure, MoS 2 has been mixed with a polyvinyl-alcohol polymer. The dualwavelength spectrum of our device reveals two peaks centred at 1555 and 1562 nm. Q-switched operation at the both spectral peaks has been investigated using a tunable bandpass filter.

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“…To date, besides traditional semiconductor saturable absorber mirrors (SESAMs) [1], there are several new materials, such as carbon nanotubes (CNTs) [2], Graphene [3][4], topological isolators (TIs) [5][6], transition metal dichalcogenides (TMDs) [7] and black phosphorus [8] that have been used as passive saturable absorbers (SAs). Compared with SESAMs, these emerging materials possess the excellent virtues of a broader operation wavelength band, more excellent nonlinear optical response, and easier fabrication.…”

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Q-switched fiber laser with tungsten disulfide saturable absorber prepared by drop casting method

et al. 2017

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Abstract-We experimentally demonstrate a passively Q-switched erbium-doped fiber laser (EDFL) operation by using a saturable absorber (SA) based on tungsten disulfide (WS2). By depositing a WS2 thin film layer at the end of an optical fiber ferrule, we fabricated an SA device. The SA is incorporated into an Erbium-doped fiber laser (EDFL) cavity to generate a Q-switching pulses train operating at 1559.8 nm. As a result, stable passively Q-switched EDFL pulses with a maximum output pulse energy of 123.2nJ, repetition rate of 104.1kHz, and pulse width of 9.61μs are achieved when the input pump power is 142.1mW at a wavelength of 980nm. (SAs). Compared with SESAMs, these emerging materials possess the excellent virtues of a broader operation wavelength band, more excellent nonlinear optical response, and easier fabrication. Among them, a group of semiconducting TMDs, like tungsten disulfide (WS 2 ) and molybdenum disulfide (MoS 2 ), have stood out for their typical graphene-like two-dimensional (2D) layered structure, unique thickness-dependent bandgap and stronger light-matter interaction than graphene [9].Most of the reported Q-switched lasers have low output power. For instance, Wu et al. demonstrated a Q-switched EDFL using WS 2 nanosheets, which were prepared using a liquid-phase exfoliation method and embedded in a polyvinyl alcohol (PVA) film [10]. Through a mechanical exfoliation technique, the WS 2 also can work as SA for Qswitching generation [11]. However, the signal-to-noise ratio of the formatted pulse is only up to 43dB. Chen et al. demonstrated high damage WS 2 SA and obtained pulse energy reaching 68.5nJ [12]. In another work, the WS 2 based Q-switched EDFL was demonstrated to generate a cylindrical-vector beam [13]. By combining WS 2 and * E-mail: yasin@fst.unair.ac.id SESAM, Chen et al. successfully generated a modelocked pulse laser at the C-band region [14]. In this letter, we demonstrate a Q-switched EDFL using WS 2 based SA, which was prepared using a drop casting method. Compared to the previously reported, this paper has successfully demonstrated a higher repetition rate and short pulse width size [15]. Moreover, the proposed laser produced a higher maximum pulse energy of 123nJ. The SA is developed by repeatedly dropping the WS 2 onto a fiber ferrule and a dried SA device is incorporated in the ring laser cavity. This technique offers simplicity in fabrication compared to composite film, besides it allows control over the insertion loss.In the experiment, we used a WS 2 pristine flakes solution, which was obtained by a liquid exfoliation method. The WS 2 flakes with the purity of more than 99% were dispersed by using a mixture of ethanol and water as a solvent. Then the dispersed solution was treated for 120min by a high-power ultrasonic cleaner. After sonication, the dispersion was allowed to settle for several hours. To remove large agglomeration, the dispersion was centrifuged at 3000 rpm for 30 min, after which the upper supernatant was collected. The concentration of WS 2 nanosheets i...

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1-, 1.5-, and 2-μm Fiber Lasers Q-Switched by a Broadband Few-Layer MoS₂ Saturable Absorber

Cited by 335 publications

References 60 publications

Generation of passively Q-switched fiber laser at 1 μm by using MoSSe as a saturable absorber

Generation of passively Q-switched fiber laser at 1 μm by using MoSSe as a saturable absorber

Dual-wavelength Q-switched pulse generation using D-fibre and MoS2 saturable absorber

Q-switched fiber laser with tungsten disulfide saturable absorber prepared by drop casting method

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1-, 1.5-, and 2-μm Fiber Lasers Q-Switched by a Broadband Few-Layer MoS2 Saturable Absorber

Cited by 335 publications

References 60 publications

Generation of passively Q-switched fiber laser at 1 μm by using MoSSe as a saturable absorber

Generation of passively Q-switched fiber laser at 1 μm by using MoSSe as a saturable absorber

Dual-wavelength Q-switched pulse generation using D-fibre and MoS2 saturable absorber

Q-switched fiber laser with tungsten disulfide saturable absorber prepared by drop casting method

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1-, 1.5-, and 2-μm Fiber Lasers Q-Switched by a Broadband Few-Layer MoS₂ Saturable Absorber