Bismuth oxysulfide nanosheets as a novel saturable absorber for Er-doped and Tm-doped ultrafast fiber lasers

Huang, Jie; Xie, Zhaoru; Chen, Jingxian; Hu, Zhiwan; Zhao, Yu; Tao, Lili; He, Junshan

doi:10.1016/j.jlumin.2023.120004

Cited by 7 publications

(2 citation statements)

References 49 publications

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“…There have been many investigations regarding broadband SAs based on 2D materials, which can cover SWIR wavelengths (1550 and 1900 nm simultaneously). It should be noticed from Table 2 that the characteristics of generated pulses from SAs based on the other 2D materials such as graphene, 93 graphene oxide, 94 NbS 2 , 95 and Bi 2 O 2 S 96 vary significantly in terms of pulse duration depending on the operating wavelength. This indicates that the saturable absorption properties of those SAs are wavelength-sensitive.…”

Section: Resultsmentioning

confidence: 99%

Third-order optical nonlinearities of Nb₄C₃ MXene and its application as an ultra-broadband mode-locker

Lee,

Kwon,

Choi

et al. 2024

J. Mater. Chem. C

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Section: Resultsmentioning

confidence: 99%

Third-order optical nonlinearities of Nb₄C₃ MXene and its application as an ultra-broadband mode-locker

Lee,

Kwon,

Choi

et al. 2024

J. Mater. Chem. C

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“…As the incident light energy intensity increases, it is noticeable that the transmittance shows a gradual increase with the amount of energy intensity in the incident light until it stabilizes. The results of the experiment can be fitted by the SA equation: − T = 1 − α s 1 + I I sat − α ns In the equation, T represents transmittance, while α s and α ns correspond to modulation depth and nonsaturable absorption loss, respectively. I stands for incident intensity, and I sat refers to saturation intensity.…”

Section: Resultsmentioning

confidence: 99%

Lead-Free Cs₂AgBiBr₆ Nanocrystals with a Low Mode-Locking Threshold for Femtosecond Fiber Laser Application

Chen,

Huang,

Xie

et al. 2024

ACS Appl. Nano Mater.

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Lead-free double perovskites (DPs) have received a lot of attention owing to their good stability and environmental friendliness. They have been widely used in the field of optoelectronics because of their high quantum efficiency and long carrier migration distance. However, the application of leadfree DPs in ultrafast photonics is rarely explored. Cs 2 AgBiBr 6 , a typical lead-free double perovskite, has advantages such as toxicity free of Pb, high stability, and strong nonlinear absorption, showing great potential application in ultrafast photonics. However, to date, there is no reported research on the application of Cs 2 AgBiBr 6 in ultrafast optical devices. Herein, we prepared Cs 2 AgBiBr 6 nanocrystals, tested their ultrafast nonlinear absorption properties, and further prepared them as a saturable absorber (SA) to achieve stable mode-locking pulses in Er-doped fiber lasers. The results show that it has a low saturation intensity (0.75 MW/cm 2 ), resulting in a low starting threshold power (50 mW) for mode-locking. The obtained pulsed fiber laser shows a pulse width as narrow as 452 fs. In addition, the Cs 2 AgBiBr 6 SA has unique advantages in longterm stability and it was found that this Cs 2 AgBiBr 6 SA can still work well after 10 months. In general, our results prove that Cs 2 AgBiBr 6 is an excellent nonlinear optical material and has good application potential in ultrafast photonics.

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Recent Advancements and Challenges in High‐Power Thulium‐Doped Laser

Sohail,

Li,

Guo

et al. 2024

Adv Materials Technologies

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High‐power all‐fiber thulium lasers have gained considerable interest in recent times due to their distinct characteristics and versatile applications in the medical and industrial sectors. This review article presents a comprehensive examination of the advancements and challenges in this field. It begins with an overview of thulium‐doped silica fiber, which is a critical component for high‐power lasers operating at the 2 µm (micrometer) wavelength band. The research progress of essential high‐power thulium laser sources, including continuous‐wave (CW), quasi‐continuous wave (QCW), and pulsed lasers, is then thoroughly analyzed, highlighting their respective strengths and limitations. Additionally, the diverse applications of high‐power thulium fiber lasers in medical and industrial domains are summarized. Furthermore, the article emphasizes the current challenges in the advancement of high‐power thulium‐doped fiber lasers (TDFLs) and outlines potential avenues for future development. Despite TDFLs being the predominant laser source in lithotripsy and material processing applications, optimizing their performance and expediting further progress in thulium laser technology remain crucial objectives. This review article aims to provide valuable insights for researchers, engineers, and professionals working in the field of high‐power fiber lasers operating at 2 µm.

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Bismuth oxysulfide nanosheets as a novel saturable absorber for Er-doped and Tm-doped ultrafast fiber lasers

Cited by 7 publications

References 49 publications

Third-order optical nonlinearities of Nb₄C₃ MXene and its application as an ultra-broadband mode-locker

Third-order optical nonlinearities of Nb₄C₃ MXene and its application as an ultra-broadband mode-locker

Lead-Free Cs₂AgBiBr₆ Nanocrystals with a Low Mode-Locking Threshold for Femtosecond Fiber Laser Application

Recent Advancements and Challenges in High‐Power Thulium‐Doped Laser

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Bismuth oxysulfide nanosheets as a novel saturable absorber for Er-doped and Tm-doped ultrafast fiber lasers

Cited by 7 publications

References 49 publications

Third-order optical nonlinearities of Nb4C3 MXene and its application as an ultra-broadband mode-locker

Third-order optical nonlinearities of Nb4C3 MXene and its application as an ultra-broadband mode-locker

Lead-Free Cs2AgBiBr6 Nanocrystals with a Low Mode-Locking Threshold for Femtosecond Fiber Laser Application

Recent Advancements and Challenges in High‐Power Thulium‐Doped Laser

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Third-order optical nonlinearities of Nb₄C₃ MXene and its application as an ultra-broadband mode-locker

Third-order optical nonlinearities of Nb₄C₃ MXene and its application as an ultra-broadband mode-locker

Lead-Free Cs₂AgBiBr₆ Nanocrystals with a Low Mode-Locking Threshold for Femtosecond Fiber Laser Application