Results 41 to 50 of about 39,132 (296)

5 kW Near-Diffraction-Limited and 8 kW High-Brightness Monolithic Continuous Wave Fiber Lasers Directly Pumped by Laser Diodes

open access: yesIEEE Photonics Journal, 2017
Tandem pumping technique are traditionally adopted to develop >3-kW continuous-wave (cw) Yb3+-doped fiber lasers, which are usually pumped by other fiber lasers at shorter wavelengths (1018 nm e.g.,).
Qiang Fang   +7 more
doaj   +1 more source

Fibre lasers: the new wave in material processing

open access: yes, 2005
In the last few years, fibre lasers have established themselves as the preferred laser source in many applications. The combination of small size, maintenance-free operation, thermal and electrical efficiency combined with outstanding (diffraction ...
Parker, David   +3 more
core   +1 more source

Ultrasonic sensing using Yb3+/Er3+-codoped distributed feedback fibre grating lasers. [PDF]

open access: yes, 2005
Yb3+/Er3+-codoped distributed feedback (YbEr-DFB) fibre grating lasers have been investigated for the detection of ultrasonic Lamb waves generated in an aluminum plate. Two sensor configurations have been investigated. A path length imbalanced readout
Ye, Chen-Chun, Tatam, Ralph P.
core   +1 more source

Numerical Study on the Soliton Mode-Locking of the Er3+-Doped Fluoride Fiber Laser at ~3 μm with Nonlinear Polarization Rotation

open access: yesPhotonics, 2019
Recent interest in the application of mid-infrared (mid-IR) lasers has made the generation of ~3 µm ultrafast pulses a hot topic. Recently, the generation of femtosecond-scale pulses in Er3+-doped fluoride fiber lasers has been realized by ...
Feijuan Zhang   +4 more
doaj   +1 more source

Recent advances in mode-locked fiber lasers based on two-dimensional materials

open access: yesNanophotonics, 2020
Due to the unique properties of two-dimensional (2D) materials, much attention has been paid to the exploration and application of 2D materials. In this review, we focus on the application of 2D materials in mode-locked fiber lasers.
Wang Junli   +6 more
doaj   +1 more source

Spectral combining of pulsed fiber lasers: Scaling considerations

open access: yes, 2022
Paper 687317We show spectral combination of pulsed fiber laser systems for the first time to our knowledge. In this proof of principle experiment, two directly modulated wavelength-stabilized tunable external cavity diode lasers (ECDL) serve as ...
Klingebiel, S.   +8 more
core   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

open access: yesFEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli   +8 more
wiley   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Recent Advances in χ(2)‐Based Nonlinear Frequency Conversion of Fiber Lasers

open access: yesAdvanced Photonics Research
Lasers operating in the visible and 3–20 μm mid‐infrared (MIR) spectral ranges have become indispensable tools with broad and significant applications in fields such as display technology, biomedicine, laser‐guide‐star systems, and nonlinear optics.
Bing Han   +10 more
doaj   +1 more source

Linewidth and phase noise characteristics of DFB fibre lasers

open access: yes, 2004
The anomalous linewidth behavior in a DFB fiber laser is investigated. It is shown that not only does the linewidth deviate drastically from the Schawlow-Townes linewidth formula by increasing with pump and laser power, but it also varies significantly ...
Voo, N.Y.   +7 more
core   +1 more source

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