Tungsten trioxide (WO3) film absorber for generating soliton mode-locked pulses in erbium laser

Al-Hiti, Ahmed Shakir; Al-Masoodi, Ahmed Hasan Hamood; Harun, Sulaiman Wadi; Yasin, Moh.; Wong, Wei Ru

doi:10.1016/j.optlastec.2020.106429

Cited by 27 publications

(6 citation statements)

References 72 publications

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“…BP-based SA generally provides a broadband operation bandwidth but also suffers from a small optical damage threshold, complicated preparation process, and low nonlinear absorption. 9 Therefore, many new works on modelocked pulse generation have also been diverted towards other nanomaterials such as topological insulators, 10 transition metal oxides, 11 transition metal dichalcogenide, 12 and ferromagnetic semiconductors. 13 More recently, MAX phases materials are also widely researched for various photonics applications.…”

Section: Introductionmentioning

confidence: 99%

Ti₃SiC₂ MAX phase for generating mode‐locked pulses in 1.5 µm wavelength region

Sahib

Zakaria

Zulkipli

et al. 2023

Micro & Optical Tech Letters

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This letter demonstrates the application of MAX phase material as saturable absorber (SA) for mode-locking in Erbium-doped fiber laser (EDFL). Here, we use titanium silicon carbide (Ti 3 SiC 2 ) compound to make thin film in polyvinyl alcohol host polymer. The fabricated composite film exhibits a saturable absorption of 51% and it produces mode-locked pulses at 1559 nm in an extended 106 m long EDFL's cavity. The EDFL generates ultrashort pulses with repetition frequency of 1.88 MHz and pulse width of 3.03 ps when the pump is adjusted within 123.7-181.1 mW. At 181.1 mW, the laser achieves the pulse energy of 6.0 nJ and the peak power of 2.0 kW. Overall, the Ti 3 SiC 2 SA establishes a compact and straightforward approach for mode-locking.

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Section: Introductionmentioning

confidence: 99%

Ti₃SiC₂ MAX phase for generating mode‐locked pulses in 1.5 µm wavelength region

Sahib

Zakaria

Zulkipli

et al. 2023

Micro & Optical Tech Letters

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“…30 In addition, tungsten oxide also has important research and application value, such as in optics and sensing applications. [31][32][33][34] However, there are few studies on the nonlinear absorption properties of the transition metal tungsten, which inspired us to strengthen the exploration of its nonlinear properties.…”

Section: Introductionmentioning

confidence: 99%

2D tungsten nanosheets: ascendant nonlinear absorption properties in the ultraviolet band

Yuan

Wang

et al. 2022

J. Mater. Chem. C

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“…Additionally, in the same year, based on the WO 3 -SA with a saturation intensity of 0.04 MW/cm 2 , a mode-locked erbium-doped fiber laser (EDFL) was obtained by introducing a segment single-mode fiber (SMF) with a length of 100 m in the cavity. However, the repetition frequency is as low as 1.85 MHz [25].…”

Section: Introductionmentioning

confidence: 99%

Revealing the Evolution from Q-Switching to Mode-Locking in an Erbium-Doped Fiber Laser Using Tungsten Trioxide Saturable Absorber

et al. 2022

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Passively Q-switching and mode-locking technologies can generate short pulses with durations that differ by several orders of magnitude widely used in different applications. Recently, Q-switching and mode-locking realized in an identical laser cavity with saturable absorbers was reported. The analysis of pulse conversion is helpful for us to further understand the pulse dynamics of a laser. In this paper, the pulse evolution from Q-switching, Q-switched mode-locking to mode-locking, is demonstrated by using a tungsten trioxide saturable absorber in a ring-cavity erbium-doped fiber laser. Firstly, self-started Q-switching at 1563 nm is observed, the repetition rate continuously increases, and the duration decreases when the pump power increased. Then, with an adjusting intra-cavity state of polarization under a high pump power level, stable Q-switched mode-locking pulses evolved from Q-switching, are observed. The amplitude of the emerged pulse sequence with a period of 36.8 ns, determined by cavity length, is modulated by the Q-switched envelope with the period of 10.3 μs. By optimizing the intracavity polarization carefully, stable continuous wave mode-locking operation is achieved eventually. To the best of our knowledge, this is the first experimental demonstration of Q-switching and mode-locking, respectively, in an identical transition-metal-oxides-based pulsed fiber laser without modification of cavity structure.

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Tungsten trioxide (WO3) film absorber for generating soliton mode-locked pulses in erbium laser

Cited by 27 publications

References 72 publications

Ti₃SiC₂ MAX phase for generating mode‐locked pulses in 1.5 µm wavelength region

Ti₃SiC₂ MAX phase for generating mode‐locked pulses in 1.5 µm wavelength region

2D tungsten nanosheets: ascendant nonlinear absorption properties in the ultraviolet band

Revealing the Evolution from Q-Switching to Mode-Locking in an Erbium-Doped Fiber Laser Using Tungsten Trioxide Saturable Absorber

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Tungsten trioxide (WO3) film absorber for generating soliton mode-locked pulses in erbium laser

Cited by 27 publications

References 72 publications

Ti3SiC2 MAX phase for generating mode‐locked pulses in 1.5 µm wavelength region

Ti3SiC2 MAX phase for generating mode‐locked pulses in 1.5 µm wavelength region

2D tungsten nanosheets: ascendant nonlinear absorption properties in the ultraviolet band

Revealing the Evolution from Q-Switching to Mode-Locking in an Erbium-Doped Fiber Laser Using Tungsten Trioxide Saturable Absorber

Contact Info

Product

Resources

About

Ti₃SiC₂ MAX phase for generating mode‐locked pulses in 1.5 µm wavelength region

Ti₃SiC₂ MAX phase for generating mode‐locked pulses in 1.5 µm wavelength region