Ultrafast Laser Pulses Generation by Using 2D Layered PtS                         2                          as a Saturable Absorber

Hui Long; Chun Yin Tang; Ping Kwong Cheng; Xin Yu Wang; Wayesh Qarony; Yuen Hong Tsang

doi:10.1109/JLT.2018.2889289

Ultrafast Laser Pulses Generation by Using 2D Layered PtS ₂ as a Saturable Absorber

Hui Long, Chun Yin Tang, Ping Kwong Cheng, Xin Yu Wang, Wayesh Qarony, Yuen Hong Tsang

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

46 Citations (Scopus)

Abstract

Platinum disulfide (PtS ₂ ) has recently drawn extensive research interest due to its excellent electronic properties, controllable bandgap over a broad range, and high air stability. Herein, we demonstrate the generation of mode-locked ultrafast laser pulses by using PtS ₂ nanosheets for the first time, which were fabricated by ultrasonic exfoliation followed by the centrifugation process. The fabricated PtS ₂ saturable absorber (SA) was used within two different fiber laser systems. Ultrafast laser pulses with pulse duration of 2.1 ps, 3-db bandwidth of 2.5 nm, and repetition rate of 15.04 MHz were produced from an Er-doped fiber laser system with an operational wavelength of 1.572 μm. Additionally, a mode-locking pulse train with repetition rate of 11.2 MHz was obtained by using the fabricated PtS ₂ SA within Yb-doped fiber laser system with operational wavelength of ∼1 μm. It is expected that these results will trigger further research with wide potential applications of PtS ₂ in the field of nonlinear optics and ultrafast photonics.

Original language	English
Article number	8586881
Pages (from-to)	1174-1179
Number of pages	6
Journal	Journal of Lightwave Technology
Volume	37
Issue number	4
DOIs	https://doi.org/10.1109/JLT.2018.2889289
Publication status	Published - 15 Feb 2019

Keywords

Liquid-phase exfoliation
mode-locking
nonlinear saturable absorption
platinum disulfide nanosheets

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

More information

10.1109/JLT.2018.2889289

Cite this

@article{f0c181e1805b4587a5c8781ff1eb3a57,

title = "Ultrafast Laser Pulses Generation by Using 2D Layered PtS 2 as a Saturable Absorber",

abstract = " Platinum disulfide (PtS 2 ) has recently drawn extensive research interest due to its excellent electronic properties, controllable bandgap over a broad range, and high air stability. Herein, we demonstrate the generation of mode-locked ultrafast laser pulses by using PtS 2 nanosheets for the first time, which were fabricated by ultrasonic exfoliation followed by the centrifugation process. The fabricated PtS 2 saturable absorber (SA) was used within two different fiber laser systems. Ultrafast laser pulses with pulse duration of 2.1 ps, 3-db bandwidth of 2.5 nm, and repetition rate of 15.04 MHz were produced from an Er-doped fiber laser system with an operational wavelength of 1.572 μm. Additionally, a mode-locking pulse train with repetition rate of 11.2 MHz was obtained by using the fabricated PtS 2 SA within Yb-doped fiber laser system with operational wavelength of ∼1 μm. It is expected that these results will trigger further research with wide potential applications of PtS 2 in the field of nonlinear optics and ultrafast photonics. ",

keywords = "Liquid-phase exfoliation, mode-locking, nonlinear saturable absorption, platinum disulfide nanosheets",

author = "Hui Long and Tang, {Chun Yin} and Cheng, {Ping Kwong} and Wang, {Xin Yu} and Wayesh Qarony and Tsang, {Yuen Hong}",

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language = "English",

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Ultrafast Laser Pulses Generation by Using 2D Layered PtS ₂ as a Saturable Absorber. / Long, Hui; Tang, Chun Yin; Cheng, Ping Kwong et al.
In: Journal of Lightwave Technology, Vol. 37, No. 4, 8586881, 15.02.2019, p. 1174-1179.

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

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AU - Long, Hui

AU - Tang, Chun Yin

AU - Cheng, Ping Kwong

AU - Wang, Xin Yu

AU - Qarony, Wayesh

AU - Tsang, Yuen Hong

PY - 2019/2/15

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N2 - Platinum disulfide (PtS 2 ) has recently drawn extensive research interest due to its excellent electronic properties, controllable bandgap over a broad range, and high air stability. Herein, we demonstrate the generation of mode-locked ultrafast laser pulses by using PtS 2 nanosheets for the first time, which were fabricated by ultrasonic exfoliation followed by the centrifugation process. The fabricated PtS 2 saturable absorber (SA) was used within two different fiber laser systems. Ultrafast laser pulses with pulse duration of 2.1 ps, 3-db bandwidth of 2.5 nm, and repetition rate of 15.04 MHz were produced from an Er-doped fiber laser system with an operational wavelength of 1.572 μm. Additionally, a mode-locking pulse train with repetition rate of 11.2 MHz was obtained by using the fabricated PtS 2 SA within Yb-doped fiber laser system with operational wavelength of ∼1 μm. It is expected that these results will trigger further research with wide potential applications of PtS 2 in the field of nonlinear optics and ultrafast photonics.

AB - Platinum disulfide (PtS 2 ) has recently drawn extensive research interest due to its excellent electronic properties, controllable bandgap over a broad range, and high air stability. Herein, we demonstrate the generation of mode-locked ultrafast laser pulses by using PtS 2 nanosheets for the first time, which were fabricated by ultrasonic exfoliation followed by the centrifugation process. The fabricated PtS 2 saturable absorber (SA) was used within two different fiber laser systems. Ultrafast laser pulses with pulse duration of 2.1 ps, 3-db bandwidth of 2.5 nm, and repetition rate of 15.04 MHz were produced from an Er-doped fiber laser system with an operational wavelength of 1.572 μm. Additionally, a mode-locking pulse train with repetition rate of 11.2 MHz was obtained by using the fabricated PtS 2 SA within Yb-doped fiber laser system with operational wavelength of ∼1 μm. It is expected that these results will trigger further research with wide potential applications of PtS 2 in the field of nonlinear optics and ultrafast photonics.

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