Passive mode-locking and Q-switching of ytterbium-doped fiber lasers using Cr2S3 saturable absorbers

Junpeng Qiao; Ruoyi Zhu; Safayet Ahmed; Ranran Fan; Md Nahian Al Subri Ivan; Guangqiang Liu; Yuen Hong Tsang; Sujuan Feng

doi:10.1007/s11082-024-07102-2

Passive mode-locking and Q-switching of ytterbium-doped fiber lasers using Cr₂S₃ saturable absorbers

Junpeng Qiao, Ruoyi Zhu, Safayet Ahmed, Ranran Fan, Md Nahian Al Subri Ivan, Guangqiang Liu, Yuen Hong Tsang, Sujuan Feng

Research output: Journal article publication › Journal article › Academic research › peer-review

5 Citations (Scopus)

Abstract

In recent years, 2D Cr₂S₃ has earned lots of attentions in the fields of photocatalysis and photodetector due to its outstanding environmental stability and high responsivity. However, up to now, the optical properties of 2D Cr₂S₃, especially the NLO properties of Cr₂S₃ have been rarely studied. In this work, the NLO properties of Cr₂S₃-nanoparticles in 1 μm have been investigated by using open-aperture (OA) Z-scan method. The nonlinear absorption coefficient (β), modulation depth and saturable intensity are measured to be -2.6cm/GW, 11.5%, and 0.115 MW/cm², respectively. Furthermore, by depositing Cr₂S₃ nanoparticles on a side-polished fiber and inserting into a ytterbium-doped fiber laser (YDFL) cavity, stable mode-locking laser and Q-switching laser with a pulse width of 10.2 ns and 2.95 µs are achieved, respectively. These results demonstrate that Cr₂S₃ is a promising saturable absorber (SA) for the fiber laser applications.

Original language	English
Article number	1146
Journal	Optical and Quantum Electronics
Volume	56
Issue number	7
DOIs	https://doi.org/10.1007/s11082-024-07102-2
Publication status	Published - Jun 2024

Keywords

CrS
Mode-locking laser
OA Z-scan
YDFL

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

More information

10.1007/s11082-024-07102-2

Cite this

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title = "Passive mode-locking and Q-switching of ytterbium-doped fiber lasers using Cr2S3 saturable absorbers",

abstract = "In recent years, 2D Cr2S3 has earned lots of attentions in the fields of photocatalysis and photodetector due to its outstanding environmental stability and high responsivity. However, up to now, the optical properties of 2D Cr2S3, especially the NLO properties of Cr2S3 have been rarely studied. In this work, the NLO properties of Cr2S3-nanoparticles in 1 μm have been investigated by using open-aperture (OA) Z-scan method. The nonlinear absorption coefficient (β), modulation depth and saturable intensity are measured to be -2.6cm/GW, 11.5%, and 0.115 MW/cm2, respectively. Furthermore, by depositing Cr2S3 nanoparticles on a side-polished fiber and inserting into a ytterbium-doped fiber laser (YDFL) cavity, stable mode-locking laser and Q-switching laser with a pulse width of 10.2 ns and 2.95 µs are achieved, respectively. These results demonstrate that Cr2S3 is a promising saturable absorber (SA) for the fiber laser applications.",

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author = "Junpeng Qiao and Ruoyi Zhu and Safayet Ahmed and Ranran Fan and Ivan, {Md Nahian Al Subri} and Guangqiang Liu and Tsang, {Yuen Hong} and Sujuan Feng",

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AU - Qiao, Junpeng

AU - Zhu, Ruoyi

AU - Ahmed, Safayet

AU - Fan, Ranran

AU - Ivan, Md Nahian Al Subri

AU - Liu, Guangqiang

AU - Tsang, Yuen Hong

AU - Feng, Sujuan

N1 - Publisher Copyright: © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.

PY - 2024/6

Y1 - 2024/6

N2 - In recent years, 2D Cr2S3 has earned lots of attentions in the fields of photocatalysis and photodetector due to its outstanding environmental stability and high responsivity. However, up to now, the optical properties of 2D Cr2S3, especially the NLO properties of Cr2S3 have been rarely studied. In this work, the NLO properties of Cr2S3-nanoparticles in 1 μm have been investigated by using open-aperture (OA) Z-scan method. The nonlinear absorption coefficient (β), modulation depth and saturable intensity are measured to be -2.6cm/GW, 11.5%, and 0.115 MW/cm2, respectively. Furthermore, by depositing Cr2S3 nanoparticles on a side-polished fiber and inserting into a ytterbium-doped fiber laser (YDFL) cavity, stable mode-locking laser and Q-switching laser with a pulse width of 10.2 ns and 2.95 µs are achieved, respectively. These results demonstrate that Cr2S3 is a promising saturable absorber (SA) for the fiber laser applications.

AB - In recent years, 2D Cr2S3 has earned lots of attentions in the fields of photocatalysis and photodetector due to its outstanding environmental stability and high responsivity. However, up to now, the optical properties of 2D Cr2S3, especially the NLO properties of Cr2S3 have been rarely studied. In this work, the NLO properties of Cr2S3-nanoparticles in 1 μm have been investigated by using open-aperture (OA) Z-scan method. The nonlinear absorption coefficient (β), modulation depth and saturable intensity are measured to be -2.6cm/GW, 11.5%, and 0.115 MW/cm2, respectively. Furthermore, by depositing Cr2S3 nanoparticles on a side-polished fiber and inserting into a ytterbium-doped fiber laser (YDFL) cavity, stable mode-locking laser and Q-switching laser with a pulse width of 10.2 ns and 2.95 µs are achieved, respectively. These results demonstrate that Cr2S3 is a promising saturable absorber (SA) for the fiber laser applications.

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