van der Waals Layered Tin Selenide as Highly Nonlinear Ultrafast Saturable Absorber
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Optical Materials"
DOI: 10.1002/adom.201801745
Abstract: Saturable absorbers (SAs) are materials that can generate ultrashort pulse lasers via mode locking due to optical absorption nonlinearity. Recently, layered 2D materials have gained increasing attention as next‐generation SAs. Layered transition‐metal monochalcogenides (TMMCs) can… read more here.
Keywords: mode locking; waals layered; van der; der waals ... See more keywords
On topological genericity of the mode-locking phenomenon
Sign Up to like & getrecommendations! Published in 2017 at "Mathematische Annalen"
DOI: 10.1007/s00208-019-01950-0
Abstract: We study circle homeomorphisms extensions over a strictly ergodic homeomorphism. Under a very mild restriction, we show that the fibered rotation number is locally constant on an open and dense subset of all circle homeomorphisms… read more here.
Keywords: mode locking; topological genericity; locking phenomenon; result ... See more keywords
Experimental exploration of mode-locking evolution mechanism in dual-ring fiber laser
Sign Up to like & getrecommendations! Published in 2020 at "Optik"
DOI: 10.1016/j.ijleo.2019.163899
Abstract: Abstract We explored experimentally the mode-locking (ML) evolution mechanism of a dual-ring fiber laser. Increase of the total pump power up to 860 mW allowed the observation of the state changes from single-ring ML, dual-ring ML,… read more here.
Keywords: dual ring; mode locking; evolution; ring fiber ... See more keywords
Graphene Capacitor-Based Electrical Switching of Mode-Locking in All-Fiberized Femtosecond Lasers.
Sign Up to like & getrecommendations! Published in 2020 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.0c15479
Abstract: Effective high-capacity data management necessitates the use of ultrafast fiber lasers with mode-locking-based femtosecond pulse generation. We suggest a simple but highly efficient structure of a graphene saturable absorber in the form of a graphene/poly(methyl… read more here.
Keywords: mode; graphene capacitor; mode locking; switching mode ... See more keywords
Nonlinear optical property measurements of rhenium diselenide used for ultrafast fiber laser mode-locking at 1.9 μm
Sign Up to like & getrecommendations! Published in 2021 at "Scientific Reports"
DOI: 10.1038/s41598-021-88735-1
Abstract: An experimental investigation into the nonlinear optical properties of rhenium diselenide (ReSe2) was conducted at a wavelength of 1.9 μm using the open-aperture and closed-aperture Z-scan techniques for the nonlinear optical coefficient (β) and nonlinear… read more here.
Keywords: mode locking; rhenium diselenide; nonlinear optical; property measurements ... See more keywords
Robust hybrid mode-locking operation with bulk-like transition metal pentatellurides
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Materials Chemistry C"
DOI: 10.1039/d1tc00903f
Abstract: Robust hybrid mode-locking operation has been demonstrated based on bulk-like transition metal pentatellurides. read more here.
Keywords: mode locking; like transition; hybrid mode; robust hybrid ... See more keywords
The link between coherence echoes and mode locking.
Sign Up to like & getrecommendations! Published in 2019 at "Chaos"
DOI: 10.1063/1.5114699
Abstract: We investigate the appearance of sharp pulses in the mean field of Kuramoto-type globally-coupled phase oscillator systems. In systems with exactly equidistant natural frequencies, self-organized periodic pulsations of the mean field, called mode locking, have… read more here.
Keywords: frequency; mode locking; coherence echoes; natural frequencies ... See more keywords
Quasi-regenerative mode locking in a compact all-polarisation-maintaining-fibre laser
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Electronics"
DOI: 10.1070/qel16519
Abstract: A novel technique of mode locking in erbium-doped allpolarisation-maintaining-fibre laser has been developed and preliminary investigated. The proposed quasi-regenerative technique combines the advantages of conventional active mode locking (when an intracavity modulator is driven by… read more here.
Keywords: mode; fibre laser; maintaining fibre; mode locking ... See more keywords
Ultrafast non-equilibrium carrier dynamics in semiconductor laser mode-locking
Sign Up to like & getrecommendations! Published in 2017 at "Semiconductor Science and Technology"
DOI: 10.1088/0268-1242/32/1/013002
Abstract: Experimental and theoretical results on the mode-locking dynamics in vertical-external-cavity surface-emitting lasers with semiconductor and graphene saturable absorber mirrors are reviewed with an emphasis on the role of nonequilibrium carrier effects. The systems are studied… read more here.
Keywords: equilibrium carrier; mode locking; non equilibrium; carrier dynamics ... See more keywords
Dynamics of mode-locked nanolasers based on Hermite-Gaussian modes
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.102.043503
Abstract: The different dynamical behaviors of the Hermite-Gaussian (HG) modes of mode-locked nanolasers based on a harmonic photonic cavity are investigated in detail using a model based on a modified Gross-Pitaevskii Equation. Such nanolasers are shown… read more here.
Keywords: mode locked; locked nanolasers; gaussian modes; mode locking ... See more keywords
Demonstration of Self-Starting Nonlinear Mode Locking in Random Lasers.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.126.173901
Abstract: In ultrafast multimode lasers, mode locking is implemented by means of saturable absorbers or modulators, allowing for very short pulses. This occurs because of nonlinear interactions of modes with well equispaced frequencies. Though theory predicts… read more here.
Keywords: mode locking; locking random; self starting; random lasers ... See more keywords