Results 81 to 90 of about 1,804,643 (357)

Theoretical Analysis of Heat Distribution in Raman Fiber Lasers and Amplifiers Employing Pure Passive Fiber

IEEE Photonics Journal, 2020
In this paper, we study the thermal dissipation of Raman fiber laser and amplifier utilizing pure passive fiber as gain medium for the first time. Take into account the convective and conductive heat transferring process in the fiber, we consider the ...
Yizhu Chen, Tianfu Yao, Hu Xiao, Jinyong Leng, Pu Zhou   +4 more
doaj   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Gain dynamics of clad-pumped Yb-fiber amplifier and intensity noise control.

Optics Express, 2017
Gain dynamics study provides an attractive method to understand the intensity noise behavior in fiber amplifiers. Here, the gain dynamics of a medium power (5 W) clad-pumped Yb-fiber amplifier is experimentally evaluated by measuring the frequency domain
Jian Zhao, G. Guiraud, Florian Floissat, B. Gouhier, S. Rota-Rodrigo, N. Traynor, G. Santarelli   +6 more
semanticscholar   +1 more source

All-Fiber Wavelength-Tunable Narrow-Linewidth Polarization-Maintaining Tm-Doped Fiber MOPA System

Photonics, 2022
An all-fiber wavelength-tunable narrow-linewidth polarization-maintaining (PM) Tm-doped fiber master oscillator power amplifier (MOPA) system is presented.
Tianran Sun, Xinyang Su, Yunhong Zhang, Huaiwei Zhang, Tianjia Xu, Yi Zheng   +5 more
doaj   +1 more source

High gain erbium-doped fiber amplifier for the investigation of nonlinear processes in fibers [PDF]

, 2008
In this work we present a novel design of an optical amplifier with high gain elaborated from erbium-doped fiber (EDF). Its purpose is the amplification of low power pulses from laser diodes.
EVGENY KUZIN
core  

Enhancing Bubble Removal in Geometry‐Optimized Electrodes

Advanced Engineering Materials, EarlyView.
3D‐printed lattice electrodes outperform stochastic foams in alkaline water electrolysis despite 20%–25% lower surface area. Straight flow channels generate Venturi‐like bubble entrainment, suppressing gas accumulation that renders foam interiors electrochemically inactive.
Florian Wiesner, Peter Förster, Alexander Limper, Anselm Brodersen, Matthias Wessling, John Linkhorst   +5 more
wiley   +1 more source

Generation of 180 W average green power from a frequency-doubled picosecond rod fiber amplifier.

Optics Express, 2017
We report on the generation of 180 W average green power from a frequency-doubled picosecond rod fiber amplifier. In an Yb-doped fiber master-oscillator-power-amplifier system, 2.3-ps 704 MHz pulses are first amplified in small-core fibers and then in ...
Zhi Zhao, B. Sheehy, M. Minty
semanticscholar   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Fiber link stabilization with a multicore fiber amplifier

Optics Letters
We study the use of separate cores of a multicore erbium-doped fiber amplifier (MC-EDFA) in a noise-canceled link for ultrastable optical frequency transfer. We demonstrate fractional frequency instability of 5×10 −19 at 1000 s averaging time for the stabilized MC-EDFA alone and 1.4×10
Yifan Liu, Takuma Nakamura, Daniel J. Elson, Yuta Wakayama, Charles A. McLemore, Tetsuya Hayashi, Mikael Mazur, Nicolas Fontaine, Franklyn Quinlan, Nazanin Hoghooghi   +9 more
openaire   +2 more sources

56W frequency doubled source at 530 nm pumped by a single-mode single-polarization picosecond Yb³⁺-doped fiber MOPA [PDF]

, 2010
We report a frequency doubled green source at 530nm pumped based on an all-fiber, picosecond, single polarization Yb3+-doped fiber MOPA delivering 20ps pulses at user selectable repetition rates of up to 910MHz and an average output power in excess of ...
Chen, Kang Kang, Alam, Shaif U., Lin, Dejiao, Mc Bride, Roy, Hall, D.W., Price, J. H V, McBride, R., Richardson, D.J., Baker, Howard J., Richardson, David J., Baker, H.J., Malinowski, A., Hayes, John R., Alam, S.-U., Price, J.H.V., Malinowski, Andrew, Hall, Dennis, Hayes, J.R.   +17 more
core   +1 more source