Femtosecond Pulsed Fiber Laser by an Optical Device Based on NaOH-LPE Prepared WSe2 Saturable Absorber [PDF]
Nanomaterials, 2022 We report on all-optical devices prepared from WSe2 combined with drawn tapered fibers as saturable absorbers to achieve ultrashort pulse output. The saturable absorber with a high damage threshold and high saturable absorption characteristics is ...
Si Chen +7 more
doaj +2 more sources
Semiconductor saturable absorbers for ultrafast THz signals [PDF]
International Conference on Ultrafast Phenomena, 2010 We demonstrate saturable absorber behavior of n-type semiconductors GaAs, GaP and Ge in THz frequency range at room temperature using nonlinear THz spectroscopy.
Conwell E. M. +2 more
core +9 more sources
SiO2 Passivated Graphene Saturable Absorber Mirrors for Ultrashort Pulse Generation [PDF]
Nanomaterials, 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]
Micromachines, 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]
Nanophotonics, 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]
Molecules, 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
Low-Threshold and Long-Term Stable Soliton Fiber Laser Using PbSe/PbS Quantum Dot-Polystyrene Composite Saturable Absorber [PDF]
NanomaterialsColloidal PbSe quantum dots are promising candidates as saturable absorbers for ultrafast fiber lasers, but their performance is often limited by surface-related defects and chemical instability, leading to aggregation under optical pumping.
Bin Yang +4 more
doaj +2 more sources
Plasmonic Saturable Absorbers [PDF]
Advanced Photonics Research, 2021 Plasmonic materials are able to spatially confine light to a nanometer scale far smaller than the diffraction limit, resulting in drastically enhanced electrical field strength and stimulating applications in nonlinear optics, energy, and biomedicine. Resonant excitation of plasmonic nanostructures by ultrafast pulses results in a subpicosecond‐scale ...
Di Zhao +3 more
openaire +2 more sources
مجلة علوم ذي قار, 2023 The initial transmission effect on the activity of Cr+4: YAG saturable absorber with Er +3 doped fiber laser was investigated. Software computer program was built in this study for solving the rate equations model by Rung - Kutta –Fehlberg numerical ...
Zainab Ali +4 more
doaj +1 more source
Crystals, 2022 Due to the tunable nonlinear optical properties of the Bi2Te3/graphene heterostructure, stable solid state pulsed lasers based on the Bi2Te3/graphene saturable absorber have attracted intensive attention. In this work, the Bi2Te3/graphene heterostructure
Yijian Sun, Houping Xia
doaj +1 more source