Passively Q-switched all-fiber lasers generating cylindrical vector beams with 2-dimensional material saturable absorbers

Song, Huaqing; Wang, Dongdong; Wang, Qi; Li, Li

doi:10.1016/j.yofte.2018.06.001

Cited by 4 publications

(1 citation statement)

References 38 publications

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“…However, the preparation conditions of such 2-D heterojunctions were strict, and their application mechanism has not been clarified. In the past several years, 2-D heterojunctions as saturable absorbers (SAs) in laser technology have also been reported due to their ideal nonlinear optics [ 29 , 30 , 31 ]. Our team has reported the fabrication of 2-D graphene/phosphorene (BP) nano-heterojunction-based optical SAs, which showed excellent performance in an erbium-doped fiber laser, demonstrating the generation of a stable ultrafast pulse down to 148 fs [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

MXene/Graphene Oxide Heterojunction as a Saturable Absorber for Passively Q-Switched Solid-State Pulse Lasers

Wang

Qiao

2021

Nanomaterials

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Owing to their unique characteristics, two-dimensional (2-D) materials and their complexes have become very attractive in photoelectric applications. Two-dimensional heterojunctions, as novel 2-D complex materials, have drawn much attention in recent years. Herein, we propose a 2-D heterojunction composed of MXene (Ti2CTx) materials and graphene oxide (GO), and apply it to an Nd:YAG solid-state laser as a saturable absorber (SA) for passive Q-switching. Our results suggest that a nano-heterojunction between MXene and GO was achieved based on morphological characterization, and the advantages of a broadband response, higher stability in GO, and strong interaction with light waves in MXene could be combined. In the passively Q-switched laser study, the single-pulse energy was measured to be approximately 0.79 µJ when the pump power was 3.72 W, and the corresponding peak power was approximately 7.25 W. In addition, the generation of a stable ultrashort pulse down to 109 ns was demonstrated, which is the narrowest pulse among Q-switched solid-state lasers using a 2-D heterojunction SA. Our work indicates that the MXene–GO nano-heterojunction could operate as a promising SA for ultrafast systems with ultrahigh pulse energy and ultranarrow pulse duration. We believe that this work opens up a new approach to designing 2-D heterojunctions and provides insight into the formation of new 2-D materials with desirable photonic properties.

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Section: Introductionmentioning

confidence: 99%

MXene/Graphene Oxide Heterojunction as a Saturable Absorber for Passively Q-Switched Solid-State Pulse Lasers

Wang

Qiao

2021

Nanomaterials

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Wavelength-tunable LP11 mode pulse fiber laser based on black phosphorus

Wang

et al. 2019

Optics & Laser Technology

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1.3 μm higher order LP₁₁ mode pulses in praseodymium-doped fluoride fiber laser

Ahmad,

Nizamani

2024

J. Opt.

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This work demonstrated an LP11 mode pulse laser at O-band using praseodymium-doped fluoride fiber (PDFF) as a gain medium. The Q-switched laser was initially generated using antinomy-telluride/polyvinyl-alcohol (Sb2Te3/PVA) thin film, and the LP11 modes were analyzed using a beam profiler. The pulse laser was achieved at a pumped power of 273 to 303 mW. With the increase in pump power, the pulse repetition rate increased to a maximum of 60.2 kHz, and the pulse width decreased to a minimum of 2.86 μs. The operating wavelength of the Q-switched output was 1303.2 nm. The corresponding pulse energy and peak power also increased with the increase in pump powers to the maximum of 12.12 nJ and 4.24 mW. The higher-order modes were obtained after the fiber was offset between the single-mode fiber (SMF) and the two-mode fiber (TMF). The TMF output was then connected to the multimode fiber (MMF), a collimator, and the scanning-slit optical beam profiler to observe the higher-order modes. A uniform two-lobe structure of higher-order LP11 modes was observed.

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Passively Q-switched all-fiber lasers generating cylindrical vector beams with 2-dimensional material saturable absorbers

Cited by 4 publications

References 38 publications

MXene/Graphene Oxide Heterojunction as a Saturable Absorber for Passively Q-Switched Solid-State Pulse Lasers

MXene/Graphene Oxide Heterojunction as a Saturable Absorber for Passively Q-Switched Solid-State Pulse Lasers

Wavelength-tunable LP11 mode pulse fiber laser based on black phosphorus

1.3 μm higher order LP₁₁ mode pulses in praseodymium-doped fluoride fiber laser

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Passively Q-switched all-fiber lasers generating cylindrical vector beams with 2-dimensional material saturable absorbers

Cited by 4 publications

References 38 publications

MXene/Graphene Oxide Heterojunction as a Saturable Absorber for Passively Q-Switched Solid-State Pulse Lasers

MXene/Graphene Oxide Heterojunction as a Saturable Absorber for Passively Q-Switched Solid-State Pulse Lasers

Wavelength-tunable LP11 mode pulse fiber laser based on black phosphorus

1.3 μm higher order LP11 mode pulses in praseodymium-doped fluoride fiber laser

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1.3 μm higher order LP₁₁ mode pulses in praseodymium-doped fluoride fiber laser