Generation of Dark Pulses in Mode‐Locked Erbium‐Doped Fiber Ring Laser Operating in L‐Band Region Using Sc₂O₃ Absorber

Microwave and Optical Technology Letters, Journal Year: 2025, Volume and Issue: 67(1)

Published: Jan. 1, 2025

ABSTRACT By incorporating scandium oxide (Sc 2 O 3 ) powder into a PVA film, Sc saturable absorber (SA) was successfully developed, boasting modulation depth of 25%. When integrated ring erbium‐doped fiber laser, the ‐SA facilitated production mode‐locked dark pulses featuring multi‐wavelength emission, leveraging its absorbing ability along with nonlinear properties inherent in thin film and long fiber. Mode‐locking operation achieved within pumping range 209.3–239.8 mW, resulting peak pulse energy 0.71 nJ. Operating at 1597.8 nm, laser demonstrated repetition rate 10.42 MHz width 23 ns. Domain‐wall L‐band region, achieving relative stability signal‐to‐noise ratio 55.6 dB, utilizing an 8‐meter‐long active These findings underscore promising potential to be used pulsed systems, particularly due exceptional optical properties.

Language: Английский

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Switchable dual-wavelength bright/dark pulses cylindrical vector beams fiber laser based on SMF-GIFMF-SMF as saturable absorber

Optics & Laser Technology, Journal Year: 2025, Volume and Issue: 184, P. 112513 - 112513

Published: Jan. 21, 2025

Language: Английский

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Two types saturable absorbers based Few-Layer CoTe2 Nanosheets for generation of Bright-dark soliton pairs in erbium-doped fiber lasers

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179866 - 179866

Published: March 1, 2025

Language: Английский

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Bright and Dark Pulses of Erbium-Doped Fiber Lasers Based on Ti2SnC

Journal of Luminescence, Journal Year: 2025, Volume and Issue: unknown, P. 121214 - 121214

Published: March 1, 2025

Language: Английский

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Emerging PbSnS2 pulse modulators for ultrafast and high repetition frequency photonic applications

Journal of Luminescence, Journal Year: 2024, Volume and Issue: 269, P. 120470 - 120470

Published: Jan. 23, 2024

Language: Английский

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Generation of Bright Pulses, Dark–Bright–Dark Pulses, and H-Shaped Pulse Rains in Fiber Lasers with CoTe₂ Nanosheets as Saturable Absorbers for Ultrafast Photonics

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(6), P. 6442 - 6448

Published: March 12, 2024

In this paper, we report the use of CoTe2 nanosheet polyvinyl alcohol composites as saturable absorbers for pulse generation in erbium-doped fiber lasers. The absorption characteristics nanosheets have been investigated, and their modulation depth saturation intensity are 3.64% 1.25 MW/cm2, respectively. By controlling pump power polarization controller, conversion from dark–bright–dark pulses to h-shaped rains can be achieved laser. This mode-locked state transition occurs because nonlinear effect absorber increases increases. is first time that operation 1.5 μm range has a laser using nanosheet-based absorber, generated by real absorber. Our experimental results show great potential application ultrafast photonics.

Language: Английский

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Preparation, characterization of violet phosphorus and its application in fiber laser

Optical Fiber Technology, Journal Year: 2024, Volume and Issue: 87, P. 103888 - 103888

Published: June 24, 2024

Language: Английский

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Generation of dual-wavelength Q-switched pulses and bright-dark pulses pairs in an erbium-doped fiber laser with NbS2 as saturable absorber.

Optical Materials, Journal Year: 2024, Volume and Issue: 154, P. 115724 - 115724

Published: Aug. 1, 2024

Language: Английский

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In₂Ge₂Te₆ Nanosheets for Pulsed Fiber Laser

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(16), P. 18889 - 18895

Published: Aug. 2, 2024

The various properties of In2Ge2Te6, a ternary layered chemical belonging to the hexagermanate family, have been little investigated so far. Herein, we experimentally structure and optical In2Ge2Te6 its application in pulsed fiber laser. Few-layered nanosheets with thickness less than 8 nm successfully prepared by liquid exfoliation method. In C-band, has nonlinear saturable absorption property, it varies polarization state. modulation depths are 2.39 2.49% under two vertical states laser, respectively. Saturable absorber fabricated can be applied an Er-doped This laser output stable bright pulses bright–bright–dark pulses. study suggests that In2Ge2Te6-based devices could developed as efficient ultrafast photonics candidates.

Language: Английский

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Optical Nonlinearity of Violet Phosphorus and Applications in Fiber Laser

Chinese Physics Letters, Journal Year: 2023, Volume and Issue: 41(1), P. 014202 - 014202

Published: Dec. 13, 2023

A D-shaped fiber is coated with a new two-dimensional nanomaterial, violet phosphorus (VP), to create saturable absorber (SA) modulation depth of 3.68%. Subsequently, the SA inserted into laser, enabling successful generation dark solitons and bright–dark soliton pairs through adjustment polarization state within cavity. Through further study, mode-locked pulses are achieved, proving existence polarization-locked vector solitons. The results indicate that VP can be used as polarization-independent SA.

Language: Английский

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