Results 41 to 50 of about 2,428,008 (144)

Period-doubling bifurcation in spatiotemporal mode-locked lasers

open access: yes, 2020
Period-doubling bifurcation is a universal dynamic of nonlinear systems, which has been extensively investigated in laser systems with a single transverse mode. This study presents an experimental observation and theoretical investigation of the period-doubling bifurcation in spatiotemporal mode-locked (STML) multimode fiber lasers.
Xiao, Xiaosheng   +4 more
openaire   +2 more sources

Topological Spatiotemporal Mode-Locked Lasers

open access: yes
Abstract Achieving robust high-dimensional solitons both in optics and Bose-Einstein condensates remains a great challenge, due to the unpredictable high-order perturbations. Here, we propose and demonstrate a novel topological spatiotemporal mode-locked fiber laser empowered by mode-division multiplexing, for precisely controlling of ...
Jian Wang   +6 more
openaire   +1 more source

Investigation of spatiotemporal mode-locked fiber lasers with hybrid dispersion

open access: yesOptics Express
In this work, by controlling the magnitude of the fourth-order dispersion (FOD) values introduced in the multimode fiber mode-locked laser system, the influence of hybrid dispersion (mainly second-order and FOD) on the spatiotemporal mode-locked fiber laser was studied.
Huaiwei Zhang   +6 more
openaire   +2 more sources

A new method for the determination of the locking range of oscillators [PDF]

open access: yes, 2007
A time-domain method for the determination of the injection-locking range of oscillators is presented. The method involves three time dimensions: the first and the second are warped time scales used for the free-running frequency and the external ...
Condon, Marissa   +5 more
core   +2 more sources

Spatiotemporal dynamics of a passively mode-locked Nd:GdVO4laser

open access: yesOptics Express, 2007
By examining beam patterns, temporal pulse forms, and radio-frequency spectra as functions of resonator configuration and pump power, we found that a passively mode-locked Nd:GdVO4 laser exhibited four main regimes of operation that were single-transverse-mode Q-switched mode locking (QSML), single-transverse-mode continuous-wave mode locking (CWML ...
Hsiao-Hua, Wu   +2 more
openaire   +2 more sources

The link between coherence echoes and mode locking [PDF]

open access: yes, 2019
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 ...
Sebastian Eydam   +3 more
core   +1 more source

Video of spatiotemporal mode-locking.mp4

open access: yes
This video shows the rapid transition of the beam profile between the mode-locking and Q-switched mode-locking, confirming a spatiotemporal mode-locked ...
Chunyu GUO (13510396)
core   +1 more source

Mode-locking in systems of globally coupled phase oscillators [PDF]

open access: yes, 2017
We investigate the dynamics of a Kuramoto-type system of globally coupled phase oscillators with equidistant natural frequencies and a coupling strength below the synchronization threshold.
Sebastian Eydam   +3 more
core   +1 more source

Energy-managed spatiotemporal mode-locked fiber lasers

open access: yesPhotonics Research
This paper proposes an energy-managed spatiotemporal mode-locked (STML) fiber laser, in which the potential enhancement in soliton energy and intriguing spatiotemporal dynamics of solitons are explored. In STML lasers, counteracting modal dispersion is crucial for achieving stable STML solitons. Here, we demonstrate that the energy-managed mechanism is
Yicong Liu   +4 more
openaire   +1 more source

Model for passive mode locking in semiconductor lasers

open access: yes, 2005
We derive and study a model describing passive mode locking—a set of differential equations with time delay. Unlike classical mode locking models based on the Haus master equation, this model does not assume small gain and loss per cavity round trip ...
Vladimirov, Andrei G., Turaev, Dmitry
core   +1 more source

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