Passively mode-locked fiber laser based on graphene covered single-mode fiber with inner short waveguides

Hua, Kuo; Wang, D.N.; Chen, Qi

doi:10.1016/j.optcom.2021.127520

Cited by 7 publications

(5 citation statements)

References 28 publications

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“…The mode-locked pulse was observed to be stable from the threshold pump p of 172.33 mW to the maximum pump power of 181.50 mW. The usual limitation of based SA in withstanding high input power [47,48] was not observed in this study d The central wavelength slightly shifted from the continuous wave (CW) of the laser cavity which was initially at 1564.48 nm, mainly due to the loss introduced by the insertion of the SA. Several pairs of Kelly sidebands can be observed from the spectrum, indicating a clear characteristic of a traditional negative dispersion soliton wherein the group velocity of the signal in the fiber is higher at a shorter wavelength.…”

Section: Resultsmentioning

confidence: 62%

“…The mode-locked pulse was observed to be stable from the threshold pump power of 172.33 mW to the maximum pump power of 181.50 mW. The usual limitation of film-based SA in withstanding high input power [47,48] was not observed in this study due to the high thermal damage of graphene and chitin, which have higher thermal stability when compared to conventional polymers such as PEO and PVA [49][50][51]. Additionally, exposed to higher temperature, the harmful degradation products of synthetic polymers, such as toxic gases, can be avoided as chitin when degraded and will break down into chitosan, which has been reported to happen at a temperature between 200 • C and 300 • C [52,53].…”

Section: Resultsmentioning

confidence: 93%

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Dual Regime Mode-Locked and Q-Switched Erbium-Doped Fiber Laser by Employing Graphene Filament–Chitin Film-Based Passive Saturable Absorber

et al. 2023

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We investigate the dynamics of high energy dual regime unidirectional Erbium-doped fiber laser in ring cavity, which is passively Q-switched and mode-locked through the use of an environmentally friendly graphene filament–chitin film-based saturable absorber. The graphene–chitin passive saturable absorber allows the option for different operating regimes of the laser by simple adjustment of the input pump power, yielding, simultaneously, highly stable and high energy Q-switched pulses at 82.08 nJ and 1.08 ps mode-locked pulses. The finding can have applications in a multitude of fields due to its versatility and the regime of operation that is on demand.

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Section: Resultsmentioning

confidence: 62%

Section: Resultsmentioning

confidence: 93%

Dual Regime Mode-Locked and Q-Switched Erbium-Doped Fiber Laser by Employing Graphene Filament–Chitin Film-Based Passive Saturable Absorber

et al. 2023

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“…Due to its broadband saturable absorption, graphene can be used to implement broadband wavelength-tunable pulsed fiber lasers. In the last decade or so, a large number of passively mode-locked lasers based on graphene as a SA have been successfully realized and reported [ 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 ], as shown in Table 2 . For graphene, passively mode-locked fiber lasers have been studied mainly for 1.5 μm and fewer studies have been conducted for 1, 2, and 3 μm.…”

Section: Passively Mode-locked Fiber Lasers Based On 2d Materialsmentioning

confidence: 99%

Frontier and Hot Topics of Pulsed Fiber Lasers via CiteSpace Scientometric Analysis: Passively Mode-Locked Fiber Lasers with Real Saturable Absorbers Based on Two-Dimensional Materials

et al. 2022

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Pulsed fiber lasers, with high peak power and narrow pulse widths, have been proven to be an important tool for a variety of fields of application. In this work, frontier and hot topics in pulsed fiber lasers were analyzed with 11,064 articles. Benefitting from the scientometric analysis capabilities of CiteSpace, the analysis found that passively mode-locked fiber lasers with saturable absorbers (SAs) based on two-dimensional (2D) materials have become a hot research topic in the field of pulsed fiber lasers due to the advantages of self-starting operation, high stability, and good compatibility. The excellent nonlinear optical properties exhibited by 2D materials at nanometer-scale thicknesses have become a particularly popular research topic; the research has paved the way for exploring its wider applications. We summarize the performance of several typical 2D materials in ultrafast fiber lasers, such as graphene, topological insulators (TIs), transition metal dichalcogenides (TMDs), and black phosphorus (BP). Meanwhile, we review and analyze the direction of the development of 2D SAs for ultrafast fiber lasers.

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“…This includes materials from the group of transition metal oxides [11][12][13], transition metal dichalcogenides [14,15] and topological insulators [16,17]. Undeniably, the advancement of these materials can be traced back to the superiority and versatility of their pioneer, graphene, which is still worthy of investigation to date [18][19][20][21][22][23][24][25]. This is attributed to its desirable properties such as gapless linear dispersion of Dirac-electrons, short recovery time and ultra-broadband absorption [21].…”

Section: Introductionmentioning

confidence: 99%

Dual-Wavelength Mode-Locked Oscillation with Graphene Nanoplatelet Saturable Absorber in Erbium-Doped Fiber Laser

et al. 2022

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In this work, we demonstrate a dual-wavelength passively mode-locked erbium-doped fiber laser employing graphene nanoplatelet as saturable absorber. The dual-wavelength laser is generated in ~1530 nm and ~1550 nm wavelength regions by splitting the main signal into two separate laser oscillations via a red/blue wavelength division multiplexer. Both the unidirectional and bidirectional dual-wavelength oscillation scheme are investigated, and it is found that the latter is advantageous in providing narrower pulse widths of 890 fs and 980 fs for the respective wavelength region, on top of boosting the pulse energy to the maximum value of 139 pJ and 155 pJ, respectively. It is believed that the bidirectional dual-wavelength oscillation scheme can minimize the overlapping effect between the neighboring pulses that cause pulse distortion as well as signal attenuation compared with unidirectional dual-wavelength oscillation. This work expands the dynamics of cavity structure design for synchronized dual-wavelength mode-locked fiber laser generation.

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Passively mode-locked fiber laser based on graphene covered single-mode fiber with inner short waveguides

Cited by 7 publications

References 28 publications

Dual Regime Mode-Locked and Q-Switched Erbium-Doped Fiber Laser by Employing Graphene Filament–Chitin Film-Based Passive Saturable Absorber

Dual Regime Mode-Locked and Q-Switched Erbium-Doped Fiber Laser by Employing Graphene Filament–Chitin Film-Based Passive Saturable Absorber

Frontier and Hot Topics of Pulsed Fiber Lasers via CiteSpace Scientometric Analysis: Passively Mode-Locked Fiber Lasers with Real Saturable Absorbers Based on Two-Dimensional Materials

Dual-Wavelength Mode-Locked Oscillation with Graphene Nanoplatelet Saturable Absorber in Erbium-Doped Fiber Laser

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