Results 31 to 40 of about 2,352,368 (298)

Sub-100 fs watt-level Kerr-lens mode-locked Yb:CaYAlO4 laser with a gigahertz repetition rate

open access: yesFrontiers in Physics, 2023
We report a 1.04 GHz high-power Kerr-lens mode-locked Yb:CaYAlO4 laser pumped by a single-mode fiber laser at 976 nm. Based on a bow-tie cavity, stable unidirectional mode-locked operation is obtained with an output coupler of 1.6%.
Ziyue Zhang   +9 more
doaj   +1 more source

Passively Mode-Locked Raman Laser [PDF]

open access: yesPhysical Review Letters, 2010
We report on the observation of a novel mode locked optical comb generated at the Raman offset (Raman comb) in an optically pumped crystalline whispering gallery mode resonator. Mode locking is confirmed via measurement of the radio-frequency beat note produced by the optical comb on a fast photodiode.
Liang, W.   +5 more
openaire   +3 more sources

InP/InGaP quantum-dot SESAM mode-locked Alexandrite laser [PDF]

open access: yes, 2018
A semiconductor saturable absorber mirror (SESAM) passively mode-locked Alexandrite laser was demonstrated. Using an InP/InGaP quantum-dot saturable absorber mirror, pulse duration of 420 fs at 774 nm was obtained.
Major, Arkady   +4 more
core   +1 more source

Graphdiyne for Ultrashort Pulse Generation in an Erbium-Doped Hybrid Mode-Locked Fiber Laser

open access: yesFrontiers in Physics, 2019
An erbium-doped hybrid passively mode-locked fiber laser based on few-layer graphdiyne (GDY) saturable absorber (SA) has been investigated for the first time. Hybrid mode-locked fiber laser is composed of non-linear polarization rotation (NPR) technology
Zhaojiang Shi   +13 more
doaj   +1 more source

Theoretical Comparison of NPR and Hybrid Mode-Locked Soliton Thulium-Doped Fiber Lasers

open access: yesIEEE Photonics Journal, 2017
The evolutions and properties of solitons in a thulium-doped fiber laser hybrid mode-locked by the coaction of nonlinear polarization rotation (NPR) and a semiconductor saturable absorber mirror (SESAM) have been numerically investigated.
Yanjia Lyu   +5 more
doaj   +1 more source

Irrational Mode Locking in Quasiperiodic Systems [PDF]

open access: yesPhysical Review Letters, 2007
4 pages, 3 figures, 1 table; revision: 2 figures modified, reference added, minor ...
Middleton, Alan, Thomas, Creighton K.
openaire   +3 more sources

A Dual-Wavelength Rational Harmonic Mode-Locked Fiber Ring Laser With Different Repetition Frequencies

open access: yesIEEE Photonics Journal, 2015
A dual-wavelength rational harmonic mode-locked fiber ring laser with different repetition frequencies is theoretically analyzed and experimentally demonstrated.
Yuejiao Zi   +6 more
doaj   +1 more source

Ultrafast dissipative soliton generation in anomalous dispersion achieving high peak power beyond the limitation of cubic nonlinearity

open access: yesPhotoniX, 2023
The maximum peak power of ultrafast mode-locked lasers has been limited by cubic nonlinearity, which collapses the mode-locked pulses and consequently leads to noisy operation or satellite pulses.
Jinhwa Gene   +3 more
doaj   +1 more source

Iteratively seeded mode-locking

open access: yesOptics Express, 2017
Ultrashort pulsed mode-locked lasers enable research at new time-scales and revolutionary technologies from bioimaging to materials processing. In general, the performance of these lasers is determined by the degree to which the pulses of a particular resonator can be scaled in energy and pulse duration before destabilizing.
Bucklew, Victor G.   +3 more
openaire   +3 more sources

Passively mode-locked diode-pumped surface-emitting semiconductor laser

open access: yes, 2000
A surface-emitting semiconductor laser has been passively mode locked in an external cavity incorporating a semiconductor saturable absorber mirror. The gain medium consists of a stack of 12 InGaAs-GaAs strained quantum wells, grown above a Bragg mirror ...
Tropper, A.C.   +19 more
core   +1 more source

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