Results 51 to 60 of about 41,304 (285)

High-Order Mode Mode-Locked Fiber Laser Based on Few-Mode Saturable Absorber

open access: yesIEEE Photonics Journal, 2021
We presented two kinds of high-order mode (HOM) mode-locked fiber lasers based on few-mode (FM) saturable absorbers for direct HOM oscillation. One is a ring fiber laser based on a carbon nanotube (CNT) saturable absorber (SA), in which the combination ...
Yi Huang   +6 more
doaj   +1 more source

Versatile Dye Laser Generator-Amplifier System for Intense Tunable Picosecond Pulse Generation [PDF]

open access: yes, 1986
. Passively mode-locked ruby-laser pulses are used to generate nearly diffraction-limited picosecond light pulses in a dye cell by longitudinally amplified spontaneous emission.
Penzkofer, Alfons   +2 more
core  

Self-mode-locking semiconductor disk laser

open access: yesOptics Express, 2014
The development of mode-locked semiconductor disk lasers received striking attention in the last 14 years and there is still a vast potential of such pulsed lasers to be explored and exploited. While for more than one decade pulsed operation was strongly linked to the employment of a saturable absorber, self-mode-locking emerged recently as an ...
Gaafar, Mahmoud   +7 more
openaire   +3 more sources

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger   +11 more
wiley   +1 more source

General description and understanding of the nonlinear dynamics of mode-locked fiber lasers

open access: yesScientific Reports, 2017
As a type of nonlinear system with complexity, mode-locked fiber lasers are known for their complex behaviour. It is a challenging task to understand the fundamental physics behind such complex behaviour, and a unified description for the nonlinear ...
Huai Wei   +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

L-band filter-less wavelength tunable mode-locked fiber laser incorporating a long-period fiber grating

open access: yesResults in Optics, 2023
The influences on the tuning range of a wavelength-tunable L-band mode-locked fiber lasers incorporating a long-period fiber grating (LPFG) are investigated.
Junjie Jiang   +7 more
doaj   +1 more source

Stable operation of a synchronously pumped colliding-pulse mode-locked ring dye laser [PDF]

open access: yes, 1984
Pulses of 100-fsec duration are obtained by synchronous pumping of a colliding-pulse ring dye laser with a mode-locked Ar+-ion laser. Stable operation of the synchronously pumped colliding-pulse mode-locked laser over hours was obtained by a suitable ...
Leonhardt, R.   +2 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Optimization of Output Characteristics in Figure-9 Mode-Locked Fiber Laser Based on Black Phosphorus Assistance

open access: yesPhotonics
Utilizing the nonlinear effects of black phosphorus (BP), the self-starting threshold and noise performance were optimized in a figure-9 mode-locked fiber laser configuration.
Peiyuan Xiao   +4 more
doaj   +1 more source

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