Copper oxide nanomaterial saturable absorber as a new passive Q-switcher in erbium-doped fiber laser ring cavity configuration

Sadeq, Sinan Abdulhameed; Al-Hayali, Sarah Kadhim; Harun, Sulaiman Wadi; Al‐Janabi, Abdulhadi

doi:10.1016/j.rinp.2018.06.006

Cited by 49 publications

(15 citation statements)

References 41 publications

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“…The maximum repetition rate of the pulse is 83 kHz, and the maximum pulse energy can reach 66 nJ, which means that CuO can be used as an effective Q-switcher device. In our work, compared with ref , CuO SA has a larger saturation light intensity and modulation depth, and EDF has a higher peak core absorption. When we increased the pump power, the harmonic mode-locking pulse is obtained instead of a Q-switching pulse.…”

Section: Resultsmentioning

confidence: 57%

“…Meanwhile, the pulse has a shorter duration, and the spectrum is smoother with a wider spectral width. In addition to mode-locking pulses, Sadeq et al have used CuO SA to obtain high SNR Q-switching pulses . The maximum repetition rate of the pulse is 83 kHz, and the maximum pulse energy can reach 66 nJ, which means that CuO can be used as an effective Q-switcher device.…”

Section: Resultsmentioning

confidence: 99%

“…In addition to mode-locking pulses, Sadeq et al have used CuO SA to obtain high SNR Q-switching pulses. 37 The maximum repetition rate of the pulse is 83 kHz, and the maximum pulse energy can reach 66 nJ, which means that CuO can be used as an effective Q-switcher device. In our work, compared with ref 37, CuO SA has a larger saturation light intensity and modulation depth, and EDF has a higher peak core absorption.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Functional Porous MOF-Derived CuO Octahedra for Harmonic Soliton Molecule Pulses Generation

et al. 2020

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Metal−organic frameworks (MOF) or their derivatives have attracted much attention in recent years due to exciting properties such as high specific surface area, adjustable pore size, and easy functionalization, which makes them have unique advantages in the fields of catalysis, energy storage, optoelectronics, and so on. However, the study of them in the fields of nonlinear optics and ultrafast photonics is still in its early stage. Here, by annealing the MOF template, porous MOF-derived CuO octahedra are prepared and applied to the above fields. Experiments show that CuO octahedra possess an excellent nonlinear optical absorption capacity in the near-infrared band. When it is used as a saturable absorber (SA) to the fiber lasers, high order harmonic soliton molecules with a repetition frequency up to 238 MHz can be obtained that make sense for optical frequency combs and optical communication. Besides, the dynamic evolution of the harmonic soliton molecule is explored. This work pioneers the application of MOF-derived metal oxide polyhedra as SAs in fiber lasers and expands the application fields of MOF-based materials. Moreover, this kind of emerging microstructured polyhedral SA, prepared by the new method, provides researchers with a new choice beyond quantum dots, nanoparticles, and 2D nanosheets/nanofilms.

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Section: Resultsmentioning

confidence: 57%

Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

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Functional Porous MOF-Derived CuO Octahedra for Harmonic Soliton Molecule Pulses Generation

et al. 2020

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“…[215,225,237] In 2018, Sadeq et al investigated the ability of CuO nanomaterial for generating ultrashort pulses, in which Q-switched and mode-locked operations were first achieved in EDFLs, respectively. [115,238] In 2020, Al-Masoodi et al established a Q-switched laser centered at 1035.4 nm using CuO NPs as SA; the relatively high pulse energy of 0.192 μJ was obtained corresponding to an average output power of 20 mW. [114] It was also the first realization of Q-switched YDFL based on CuO nanomaterial.…”

Section: (14 Of 24)mentioning

confidence: 99%

Recent Progress on Metal‐Based Nanomaterials: Fabrications, Optical Properties, and Applications in Ultrafast Photonics

Sun

Cheng

et al. 2021

Adv Funct Materials

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Nanomaterials have demonstrated excellent mechanical, thermal, optical, and electrical properties in various fields, including 1D carbon nanotubes, as well as 2D materials starting from graphene. Metal-based nanomaterials, mainly divided into metal and metal oxide nanoparticles, also gradually come into the sight of ultrafast photonics applications due to the outstanding optical properties. The optical properties of metal nanoparticles can be enhanced by the interaction between conduction electrons with electric fields that is called surface plasmon resonance. As for metal oxide nanoparticles, optical properties are closely related to bandgap structures. When it comes to transition metal oxides, other phenomena also play important roles in optical absorption such as spin inversion and excitons of iron. Moreover, preparation methods of materials are also crucial for their properties and further applications. Therefore, in this review, commonly used physical and chemical fabrication methods for metal-based nanomaterials are first introduced. Then the optical properties of typical metal and metal oxide nanoparticles are discussed specifically. In addition, the applications of metal-based nanomaterials in ultrafast lasers based on mode-locked and Q-switched techniques are also summarized. Finally, a summary and outlook toward the synthesis, optical properties, and applications in ultrafast photonics of metal-based nanomaterials are presented.

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“…However, placing a real SA is considered effective and most appropriate to obtain high energy pulses from a laser cavity by modulating the intra cavity losses [12]. Graphene [13], [14] transition metal dichalcogenides (TMDs) [15], transition metal oxides (TMOs) [16], [17] carbon nanotubes (CNT) [18], [19] topological insulator (TIs) [20], PbS quantum dots (QDs) [6] and black phosphorus (BP) [21], are some of the examples of real SAs. Among the above mentioned SAs, still carbon-based SA is in high demand due to its superior performance.…”

Section: Introductionmentioning

confidence: 99%

Passively Q-switched erbium doped fiber laser based on graphene and carbon nanotube saturable absorbers

Mafroos

Sapingi

Hamzah

2022

IJEECS

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A passively Q-switched erbium-doped fiber laser (EDFL) was experimented on by employing graphene, single walled carbon nanotubes (SWCNT) and multi-walled carbon nanotube (MWCNT) saturable absorbers (SA). The SA film was obtained by embedding the graphene, SWCNT and MWCNT into polyvinyl alcohol (PVA). The graphene SA was prepared by dipping a PVA thin film into the graphene solution while carbon nanotubes SAs were prepared using the casting method and placed in the ring cavity to produce a stable pulse laser. Graphene, SWCNT and MWCNT SAs were operating at wavelengths of 1558.92 nm, 1557.98 nm and 1558.51 nm, respectively, whereas the continuous wave was 1560.72 nm at the input pump power of 56 mW. The pulse energy, output power, repetition rate and pulse width were compared in graphene, SWCNT and MWCNT SAs. The shortest pulse width retrieved in graphene, SWCNT and MWCNT were 3.90 µs, 3.62 µs 4.43 µs and produced at the repetition rate of 115.00 kHz, 130.70 kHz, and 89.13 kHz, respectively. In comparison to graphene and SWCNT SAs, MWCNT SAs exhibit the best performance in terms of output power of 2.19 mW and high pulse energy of 24.57 nJ in passively Q-switched EDFL.

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Copper oxide nanomaterial saturable absorber as a new passive Q-switcher in erbium-doped fiber laser ring cavity configuration

Cited by 49 publications

References 41 publications

Functional Porous MOF-Derived CuO Octahedra for Harmonic Soliton Molecule Pulses Generation

Functional Porous MOF-Derived CuO Octahedra for Harmonic Soliton Molecule Pulses Generation

Recent Progress on Metal‐Based Nanomaterials: Fabrications, Optical Properties, and Applications in Ultrafast Photonics

Passively Q-switched erbium doped fiber laser based on graphene and carbon nanotube saturable absorbers

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