Tungsten disulfide saturable absorbers for 67 fs mode-locked erbium-doped fiber lasers

Liu, Wenjun; Pang, Lihui; Han, Hainian; Liu, Mengli; Lei, Ming; Fang, Shaobo; Teng, Hao; Wei, Zhiyi

doi:10.1364/oe.25.002950

Cited by 225 publications

(71 citation statements)

References 64 publications

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“…Driven by these efforts, mode‐locked fiber lasers based on other layered TMDCs and their derivatives including MoSe 2 , MoTe 2 , WTe 2 , WSe 2 , MoSe 2 , SnS 2 , ReS 2 , In 2 Se 3 , InS, TiS 2 , PtS 2 , PtSe 2 , and HfS 2 , have also developed rapidly, as shown in Table . It can be seen that for these lasers, the minimum pulse width is 67 fs, maximum output power is 212 mW, and maximum repetition rate is 8.82 GHz . Interestingly, the number of layers, oxidative and defective surfaces of layered TMDCs do not degrade their saturable absorption performance.…”

Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 91%

“…These efforts have greatly promoted the development of few‐layer MoS 2 in mode‐locked lasers and achieved a lot of important results . Similar to MoS 2 , layered WS 2 also has a direct bandgap and exhibits excellent nonlinear optical properties . For example, the researchers demonstrated the soliton mode‐locked fiber lasers using WS 2 nanosheets, which were prepared by the liquid phase exfoliation and pulsed laser deposition method, respectively, as shown in Figure a–f.…”

Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 99%

“…For example, the researchers demonstrated the soliton mode‐locked fiber lasers using WS 2 nanosheets, which were prepared by the liquid phase exfoliation and pulsed laser deposition method, respectively, as shown in Figure a–f. Moreover, a series of laser pulses with a pulse width of 67 fs from a single‐cavity were also realized, as illustrated in Figure g–h.…”

Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 99%

Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 99%

See 3 more Smart Citations

2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications

Guo

Xiao

Wang

et al. 2019

Laser & Photonics Reviews

404

197

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In recent years, 2D layered materials, including graphene, topological insulators, transition metal dichalcogenides, black phosphorus, MXenes, graphitic carbon nitride, and metal‐organic frameworks, have attracted considerable interest due to their potential applications in the fields of physics, chemistry, biology, and energy. Their rise in the field of nonlinear photonics began around 2009 and has become an important research direction. Here, the synthesis techniques, nonlinear optical properties, integration strategies, and device applications of layered materials are reviewed. In terms of nonlinear optical properties, the focus is on saturable absorption and Kerr nonlinearity. On this basis, their applications in various pulsed lasers, including fiber lasers, solid‐state lasers, waveguide lasers, and related nonlinear optical phenomenon, are summarized. In addition, novel optical devices using layered materials, such as optical modulators, optical polarizers, optical switchers, and even all‐optical device, are also involved. It is believed that the development of 2D layered materials in the field of photonics will continue to deepen, thus laying a good foundation for its practical application.

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Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 91%

Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 99%

Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 99%

Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 99%

See 2 more Smart Citations

2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications

Guo

Xiao

Wang

et al. 2019

Laser & Photonics Reviews

404

197

View full text Add to dashboard Cite

show abstract

“…Overall, the shortest pulse duration based on TMDs was achieved by Liu and his collaborators. They used a hybrid mode‐locking of nonlinear polarization evolution and a WS 2 SA to obtain a pulse duration as low as 67 fs in Figure 249. Meanwhile, the 3 dB spectral width of up to 114 nm was also realized in the same work.…”

Section: Fiber Laser Based On 2d Materialsmentioning

confidence: 96%

Recent Advances of 2D Materials in Nonlinear Photonics and Fiber Lasers

Liu

et al. 2020

Advanced Optical Materials

Self Cite

141

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The explosive success of graphene opens a new era of ultrathin 2D materials. It has been realized that the van der Waals layered materials with atomic and less atomic thickness can not only exist stably, but also exhibit unique and technically useful properties including small size effect, surface effect, macro quantum tunnel effect, and quantum effect. With the extensive research and revealing of the basic optical properties and new photophysical properties of 2D materials, a series of potential applications in optical devices have been continuously demonstrated and realized, which immediately roused an upsurge of study in the academic circle. Therefore, the application of 2D materials as broadband, efficient, convenient, and versatile saturable absorbers in ultrafast lasers is a potential and promising field. Herein, the main preparation methods of 2D materials are reviewed and technical guidelines for identifying and characterizing layered 2D materials are provided. After investigating the characteristics of 2D materials thoroughly in nonlinear optics, their performances in fiber lasers are comprehensively summarized according to the types of materials. Finally, some developmental challenges, potential prospects, and future research directions are summarized and presented for such promising materials.

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Germanium Nanosheets with Dirac Characteristics as a Saturable Absorber for Ultrafast Pulse Generation

Liu

Bongu

et al. 2021

Advanced Materials

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Bulk germanium as a group‐IV photonic material has been widely studied due to its relatively large refractive index and broadband and low propagation loss from near‐infrared to mid‐infrared. Inspired by the research of graphene, the 2D counterpart of bulk germanium, germanene, has been discovered and the characteristics of Dirac electrons have been observed. However, the optical properties of germanene still remain elusive. In this work, several layers of germanene are prepared with Dirac electronic characteristics and its morphology, band structure, carrier dynamics, and nonlinear optical properties are systematically investigated. It is surprisingly found that germanene has a fast carrier‐relaxation time comparable to that of graphene and a relatively large nonlinear absorption coefficient, which is an order of magnitude higher than that of graphene in the near‐infrared wavelength range. Based on these findings, germanene is applied as a new saturable absorber to construct an ultrafast mode‐locked laser, and sub‐picosecond pulse generation in the telecommunication band is realized. The results suggest that germanene can be used as a new type of group‐IV material for various nonlinear optics and photonic applications.

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Tungsten disulfide saturable absorbers for 67 fs mode-locked erbium-doped fiber lasers

Cited by 225 publications

References 64 publications

2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications

2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications

Recent Advances of 2D Materials in Nonlinear Photonics and Fiber Lasers

Germanium Nanosheets with Dirac Characteristics as a Saturable Absorber for Ultrafast Pulse Generation

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