Results 121 to 130 of about 321,039 (293)

High-resolution and broadband all-fiber spectrometers

, 2014
The development of optical fibers has revolutionized telecommunications by enabling long-distance broad-band transmission with minimal loss. In turn, the ubiquity of high-quality low-cost fibers enabled a number of additional applications, including ...
Alam, Mansoor, Cao, Hui, Redding, Brandon, Seifert, Martin   +3 more
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Design of Self-Matching Photonic Lantern for High-Order Transverse-Mode Laser Systems

Photonics
High-order transverse-mode lasers have important potential application value in many fields. To address the current issue of the limited controllability of modes in high-order transverse-mode lasers, we have designed a self-matching photonic lantern ...
Li Zhao, Wei Li, Yunhao Chen, Enming Zhao, Jianing Tang   +4 more
doaj   +1 more source

SOPHIE+: First results of an octagonal-section fiber for high-precision radial velocity measurements

, 2012
High-precision spectrographs play a key role in exoplanet searches and Doppler asteroseismology using the radial velocity technique. The 1 m/s level of precision requires very high stability and uniformity of the illumination of the spectrograph.
A. Santerne, Artigau, Avila, Avila, Bakos, Baranne, Barge, Bazot, Boisse, Boisse, Boisse, Bouchy, Bouchy, Bouchy, Bouchy, Brown, Brown, Butler, Butler, Chazelas, Cochran, Collier Cameron, Connes, Demory, Diaz, F. Bouchy, Fried, G. Hébrard, Gillon, Heacox, Heacox, Howard, Howard, Howard, Hunter, Hébrard, Hébrard, I. Boisse, L. Arnold, Loeillet, Maness, Martic, Mayor, Melo, Mosser, Moutou, Pepe, Pepe, Perruchot, Perruchot, R. F. Díaz, S. Perruchot, Santerne, Setiawan, Vogt, Walker, Wright, X. Delfosse   +57 more
core   +3 more sources

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

Advanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin, Marvin Erck, Kevin Jasutyn, Katja Radermacher, Andreas Bund, Mario Kurniawan   +5 more
wiley   +1 more source

Analysis on the research progress of space division multiplexing in optical fiber communication

Dianxin kexue, 2017
The evolution of optical fiber communication technology is driven by the ceaseless growth of capacity demand of Internet.Space division multiplexing (SDM) based on multi-core fiber,few-mode fiber,few-mode multi-core fibers and orbital angular momentum ...
Junsen LAI, Rui TANG, Bingbing WU, Wenxuan WU, Hongfa LI, Guojun LIU, Wenyu ZHAO, Haiyi ZHANG   +7 more
doaj   +2 more sources

Low computational complexity mode division multiplexed OFDM transmission over 130 km of few mode fiber

We demonstrate 337.5-Gb/s MDM-8QAM-OFDM transmission over 130 km of FMF. This confirms that OFDM can significantly reduce the required DSP complexity to compensate for differential mode delay, a key step towards real-time MDM ...
Adhikari, S., Alam, S.-U., Grüner-Nielsen, L., Hanik, N., Inan, B., Jansen, S.L., Jung, Y., Kuschnerov, M., Richardson, D.J., Sleiffer, V.A.J.M., Spinnler, B.   +10 more
core  

Sub-100-as timing jitter optical pulse trains from mode-locked Er-fiber lasers

, 2011
We demonstrate sub-100-attosecond timing jitter optical pulse trains generated from free-running, 77.6-MHz repetition-rate, mode-locked Er-fiber lasers.
Chang Hee Nam, Chur Kim, Cox, Haus, Hyoji Kim, Jungwon Kim, Kim, Kim, Kwangyun Jung, Namiki, Nicholson, Nugent-Glandorf, Paschotta, Schibli, Song, Song, Tae Keun Kim, Youjian Song   +17 more
core   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source