Results 21 to 30 of about 34,535 (289)

Interaction of two magnetic micro-chains in a rotating field

open access: yesAIP Advances, 2020
Interactions between two chains consisted of micro-sized magnetic beads are experimentally investigated. Driven by a rotating field, three distinct modes of magnetic interactions are identified, referred to as chaining, locking and transit.
Jia-Hong Cheng   +2 more
doaj   +1 more source

Spatiotemporally mode-locked soliton fiber laser at 2.8 μm

open access: yesHigh Power Laser Science and Engineering, 2023
Spatiotemporal mode-locking creates great opportunity for pulse energy scaling and nonlinear optics research in fiber. Until now, spatiotemporal mode-locking has only been realized in normal-dispersion dissipative soliton and similariton fiber lasers. In
Ying’an Chen   +6 more
doaj   +1 more source

Dynamic modal analysis of monolithic mode-locked semiconductor lasers [PDF]

open access: yes, 2003
We analyze the advantages and applicability limits of the mode-coupling approach to active, passive, hybrid, and harmonic mode-locking in diode lasers. A simple, computationally efficient numerical model is proposed and applied to several traditional and
Arnold, J.M.   +2 more
core   +1 more source

Optimality analysis of train platforming and routing with different interlocking modes

open access: yesCommunications in Transportation Research, 2022
The train platforming and routing (TPR) problem is to decide train operations within stations after the network-wise train schedules are determined. A feasible TPR plan requires both platform and route conflict-free, where the avoidance of route conflict
Yuan Wang, Xiaopeng Li
doaj   +1 more source

Increased reliability of passive mode-locking a multi-atmosphere TE CO2 laser by injection mode-locking [PDF]

open access: yes, 1986
By injection of manosecond pulses from an AM mode-locked TEA CO2 laser in a passive mode-locked multi-atmosphere TE CO2 laser the shot-to-shot reproducibility of the generated subnanosecond pulses was increased to almost 100%
Goor, F.A. van
core   +4 more sources

Theoretical and Experimental Investigations of a Passively Mode-Locked Nd" Glass Laser [PDF]

open access: yes, 1981
The presented theoretical model for a mode-locked Nd-glass laser simultaneously takes into account dynamics of the mode-locking dye, amplification saturation and radiation background.
Kolmeder, Christian, Zinth, Wolfgang
core   +1 more source

Injection dynamics in spin-wave active ring oscillator (SWARO) [PDF]

open access: yesAIP Advances
We investigated injection locking in spin-wave active ring oscillators (SWAROs) operating in the multi-mode regime. By applying external RF signals with varying frequency and power, we identified the locking behavior of individual modes and extracted the
Anirban Mukhopadhyay   +2 more
doaj   +1 more source

Active mode-locking via pump modulation in a Tm-doped fiber laser

open access: yesAPL Photonics, 2016
We propose and experimentally realize a new class of actively mode-locking technique using pump modulation for rare-earth doped fiber lasers. A Tm-doped fiber laser at 2 μm is mode-locked using the proposed active mode-locking via pump modulation ...
Yu Wang, Sze Y. Set, Shinji Yamashita
doaj   +1 more source

PT-symmetric mode-locking [PDF]

open access: yesOptics Letters, 2016
Parity-time (PT) symmetry is one of the most important accomplishments in optics over the past decade. Here the concept of PT mode-locking (ML) of a laser is introduced, in which active phase-locking of cavity axial modes is realized by asymmetric mode coupling in a complex time crystal. PT ML shows a transition from single- to double-pulse emission as
openaire   +2 more sources

Bound Soliton Fiber Laser Mode-Locking Without Saturable Absorption Effect

open access: yesIEEE Photonics Journal, 2016
Stable bound soliton laser mode-locking is experimentally demonstrated in an environmentally stable hybrid mode-locked Er-doped fiber laser without incorporating (equivalent) nonlinear saturable absorption effects.
Cheng-Jhih Luo   +2 more
doaj   +1 more source

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