Generation of mode-locked Thulium-doped fiber laser in 2.0-μm wavelength operation by polymer-coated Iron phosphorus trisulfide (FePS3)-based saturable absorber

A novel 2H-phase transition metal dichalcogenide (TMD)–tantalum selenide (TaSe2) with metallic bandgap structure is a potential photoelectric material. A band structure simulation of TaSe2 via ab initio method indicated its metallic property. An effective multilayered TaSe2 saturable absorber (SA) was fabricated using liquid-phase exfoliation and optically driven deposition. The prepared 2H–TaSe2 SA was successfully used for a dual-wavelength Q-switched fiber laser with the minimum pulse width of 2.95 μs and the maximum peak power of 64 W. The repetition rate of the maximum pulse energy of 89.9 kHz was at the level of 188.9 nJ. The metallic 2H–TaSe2 with satisfactory saturable absorbing capability is a promising candidate for pulsed laser applications.

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Recent research and advances of material-based saturable absorber in mode-locked fiber laser

Optics & Laser Technology ◽

10.1016/j.optlastec.2020.106826 ◽

2021 ◽

Vol 137 ◽

pp. 106826

Author(s):

K.Y. Lau ◽

D. Hou

Keyword(s):

Fiber Laser ◽

Saturable Absorber

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The soliton mode-lock fiber laser pulse energy dependence from saturable absorber parameters

2020 International Conference Laser Optics (ICLO) ◽

10.1109/iclo48556.2020.9285836 ◽

2020 ◽

Author(s):

A.A. Mastin ◽

P.A. Ryabochkina

Keyword(s):

Laser Pulse ◽

Fiber Laser ◽

Energy Dependence ◽

Saturable Absorber ◽

Pulse Energy ◽

Laser Pulse Energy ◽

Mode Lock

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Plasma sputtered platinum saturable absorber with variable sputtering time for Q-switched erbium-doped fiber laser

Optics & Laser Technology ◽

10.1016/j.optlastec.2020.106525 ◽

2021 ◽

Vol 136 ◽

pp. 106525

Author(s):

Y.R. Yuzaile ◽

Z. Zakaria ◽

N.A. Awang ◽

N.U.H.H. Zalkepali

Keyword(s):

Fiber Laser ◽

Saturable Absorber ◽

Erbium Doped

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Highly Stable Passively Q-Switched Erbium-Doped All-Fiber Laser Based on Niobium Diselenide Saturable Absorber

Molecules ◽

10.3390/molecules26144303 ◽

2021 ◽

Vol 26 (14) ◽

pp. 4303

Author(s):

Ping Hu ◽

Jiajia Mao ◽

Hongkun Nie ◽

Ruihua Wang ◽

Baitao Zhang ◽

...

Keyword(s):

Fiber Laser ◽

Saturable Absorber ◽

Pulse Width ◽

Nonlinear Optical ◽

Modulation Depth ◽

Transition Metal Dichalcogenide ◽

Center Wavelength ◽

Niobium Diselenide ◽

Erbium Doped ◽

Layered Transition Metal

A saturable absorber (SA) based on niobium diselenide (NbSe2), which is a layered transition metal dichalcogenide (TMD) in the VB group, is fabricated by the optically driven deposition method, and the related nonlinear optical properties are characterized. The modulation depth, saturable intensity, and nonsaturable loss of the as-prepared NbSe2 nanosheet-based SA are measured to be 16.2%, 0.76 MW/cm2, and 14%, respectively. By using the as-fabricated NbSe2 SA, a highly stable, passively Q-switched, erbium-doped, all-fiber laser is realized. The obtained shortest pulse width is 1.49 μs, with a pulse energy of 48.33 nJ at a center wavelength of 1560.38 nm. As far as we know, this is the shortest pulse duration ever obtained by an NbSe2 SA in a Q-switched fiber laser.

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