Results 11 to 20 of about 1,473 (264)

SiO2 Passivated Graphene Saturable Absorber Mirrors for Ultrashort Pulse Generation [PDF]

open access: yesNanomaterials, 2022
Owing to its broadband absorption, ultrafast recovery time, and excellent saturable absorption feature, graphene has been recognized as one of the best candidates as a high-performance saturable absorber (SA).
Hongpei Wang   +6 more
doaj   +2 more sources

Dual Regime Mode-Locked and Q-Switched Erbium-Doped Fiber Laser by Employing Graphene Filament–Chitin Film-Based Passive Saturable Absorber [PDF]

open access: yesMicromachines, 2023
We investigate the dynamics of high energy dual regime unidirectional Erbium-doped fiber laser in ring cavity, which is passively Q-switched and mode-locked through the use of an environmentally friendly graphene filament–chitin film-based saturable ...
Siti Nur Fatin Zuikafly   +8 more
doaj   +2 more sources

Gigahertz femtosecond laser-by a novel asymmetric one-dimensional photonic crystal saturable absorber device with defect layer [PDF]

open access: yesNanophotonics, 2022
High repetition frequency (HRF) ultrashort pulse fiber laser has been widely used in laser cold processing. The technical solutions such as short cavity length fiber laser have been proposed to achieve HRF ultrashort pulse output recently.
Song Chun-Yu   +14 more
doaj   +2 more sources

Passively Mode-Locked Er-Doped Fiber Laser Based on Sb2S3-PVA Saturable Absorber [PDF]

open access: yesMolecules, 2022
In this paper, antimony trisulfide (Sb2S3) was successfully prepared with the liquid phase exfoliation method and embedded into polyvinyl alcohol (PVA) as a saturable absorber (SA) in a passively mode-locked Er-doped fiber laser for the first time. Based
Qiongyu Hu   +8 more
doaj   +2 more sources

Passively Q-Switched Er:LuAG Laser at 1.65 μm Using MoS2 and WS2 Saturable Absorbers

open access: yesIEEE Photonics Journal, 2017
We describe passively Q-switched Er:LuAG laser characteristics at 1.65 μm for the first time, with MoS2 and WS2 as the saturable absorber, respectively. The saturable absorbers were both prepared with the liquid phase exfoliation method.
Shuaiyi Zhang   +10 more
doaj   +1 more source

Graphene Saturable Absorber Mirrors for Silicon Photonic Platforms

open access: yesIEEE Photonics Journal, 2022
We employ graphene saturable absorption for the theoretical demonstration of saturable absorption mirrors based on planar silicon photonic Bragg gratings.
Dimitrios Chatzidimitriou   +2 more
doaj   +1 more source

Drop-Casted Self-Assembled Topological Insulator Membrane as an Effective Saturable Absorber for Ultrafast Laser Photonics

open access: yesIEEE Photonics Journal, 2015
Through employing a cost-effective solvothermal method, ultrathin topological insulator (TI) bismuth telluride (Bi2Te3) nanosheets with uniform hexagonal nanostructures had been synthesized.
Qingkai Wang   +7 more
doaj   +1 more source

MXene Ti3C2Tx saturable absorber for passively Q-switched mid-infrared laser operation of femtosecond-laser–inscribed Er:Y2O3 ceramic channel waveguide

open access: yesNanophotonics, 2020
We report on an Er:Y2O3 ceramic channel waveguide laser operating at continuous-wave and passively Q-switched regimes, for the first time to the best of our knowledge.
Tian Qingyu   +10 more
doaj   +1 more source

GaInSn liquid nanospheres as a saturable absorber for an Er:CaF2 laser at 2.75 μm

open access: yesFrontiers in Physics, 2022
High-quality GaInSn liquid nanospheres are successfully fabricated by the ultrasonic method as a novel saturable absorber in the mid-infrared range. An open-aperture Z-scan technique is applied to study the saturation absorption property, presenting a ...
Bo Chen   +7 more
doaj   +1 more source

Tunable Q-Switched Fiber Laser Based on a Graphene Saturable Absorber Without Additional Tuning Element

open access: yesIEEE Photonics Journal, 2019
A tunable passively Q-switched fiber laser is fabricated using a graphene saturable absorber. The graphene saturable absorber is composed of a tapered fiber coated with graphene nanosheets.
Renli Zhang   +7 more
doaj   +1 more source

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